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The Human Body in Health and Disease7th EditionGary A. Thibodeau, Kevin T. Patton 1,505 solutions Choosing Health3rd EditionApril Lynch, Jerome Kotecki, Karen Vail-Smith, Laura Bonazzoli 225 solutions The suprasternal, manubrial, or jugular notch all correspond to the level of: A) T2-3 a. T2-3 pg. 356: The jugular notch is at a level of T2-T3. The xiphoid process corresponds to the vertebral level of: A) T7 B) T9-10 pg. 356: the xiphoid process corresponds to the level of T9-T10 What is the primary term for the superior margin of the sternum? A) Sternal notch D) Jugular notch pg. 356: the uppermost border of the manubrium is easy to palpate and is called the jugular notch. Another secondary name for this area is the suprasternal or manubrial notch. At approximately what age does the xiphoid process become totally ossified? A) 12 years old C) 40 years old pg. 356: the xiphoid process is composed of cartilage during infancy and youth, and usually does not become totally ossified until about the age of 40 years old. Which of the following structures connects the anterior aspect of the ribs to the sternum? A) Costocartilage A) Costocartilage pg. 357: the anterior ribs do not unite directly to the sternum but do so with a short piece of cartilage termed costocartilage. The tubercle portion of a typical rib articulates with the vertebral facet/demifacet. A. True B. False pg. 357: The vertebral end of a rib consists of a head which articulates with one or two thoracic vertebral bodies pg. 298: Each facet or combination of two demifacets accepts the head of a rib to form a costovertebral joint. pg. 357: Lateral to the neck is an elevated tubercle that articulates with the transverse process of a vertebra and allows for attachment of a ligament/ pg. 298: in addition to costovertebral joints, all of the first 10 thoracic vertebrae also have facets (one on each transverse process) that articulate with the tubercles of ribs 1-10 to form costotransverse joints. The only bony connection between the shoulder girdle and the bony thorax is the acromioclavicular joint. A. True B. False pg. 356: each clavicle articulates medially with the manubrium of the sternum at the clavicular notch and is called the sternoclavicular joint, which is the only bony connection between each shoulder girdle and the bony thorax. The sternal angle is a palpable landmark at the level of: A) T4-5 A) T4-5 pg. 356: the sternal angle is at the level of the intervertebral disk space between T4 and T5 for an average adult. Which pair of ribs attaches to the sternum at the level of the sternal angle? A) First B) Second pg. 357: the second costocartilage connects to the sternum at the level of the sternal angle. In the erect adult bony thorax, the posterior or vertebral end of a typical rib is ____ higher than or more superior to the anterior portion. A) 1 to 2 inches (2.5 to 5 cm) B) 3 to 5 inches (8 to 13 cm) pg. 357: The posterior or vertebral end of a typical rib is 3" to 5" higher than the anterior or sternal end. Which of the following ribs is considered to be a false rib? A) Seventh C) Ninth pg. 357: Ribs 1-7 are true ribs Ribs 8 to 12 are false ribs Ribs 11 & 12, which are also false ribs, are termed floating ribs because they are not connected anteriorly. Which of the following statements is true about floating ribs? A) They do not possess a head C) They do not possess costocartilage. pg. 357: the last two pairs of false ribs (11 & 12) are unique in that they do not possess costocartilage. The term floating ribs can be used to designate these two pairs of ribs. The widest aspect of the bony thorax generally occurs at the level of: A) the eleventh and twelfth ribs. D) the eighth or ninth ribs. pg. 358: the bony thorax is typically widest at the lateral margins of the eighth or ninth ribs. What is the joint classification and type of movement for the sternoclavicular joints? A) Cartilaginous with diarthrodial (ginglymus) movement B) Synovial with diarthrodial (gliding) movement pg. 358: the sternoclavicular joints are synovial joints, containing articular capsules that permit a plane of motion, or gliding motion, and are therefore termed diarthrodial joints. What is the joint classification and type of movement for the costotransverse joint? A) Cartilaginous with diarthrodial (ginglymus) movement B) Synovial with diarthrodial (plane) movement pg. 358: synovial joints with articular capsules lined by synovial membrane, which allow plane or gliding motion, and are therefore diarthrodial. What is the name of the part labeled "i" in this figure? A) Facet for
the first rib C) Sternoclavicular joint pg. 356: see figures 10. and 10.3 What is the name of the part labeled "ii"? A) Xiphoid process D) Sternal angle pg. 356: see figures 10. and 10.3 The structure labeled "iii" is the costocartilage: A) of the tenth rib. D) of the sixth rib pg. 356: see figures 10. and 10.3 What is the name of the part labeled "iv"? A) Facet for the sternum attachment D) Costocartilage for the first rib attachment pg. 356: see figures 10. and 10.3 What is the name of the structure labeled "v"? A) Head C) Manubrium pg. 356: see figures 10. and 10.3 Which aspect of the rib articulates with the thoracic vertebral body? A) Neck C) Head pg. 357: The vertebral end of a rib consists of a head which articulates with one or two thoracic vertebral bodies Which ribs are considered to be true ribs? A) First only B) First through seventh ribs pg. 357: ribs 1 to 7 are termed true ribs. The degree of rotation for the right anterior oblique (RAO) projection of the sternum is dependent on the size of the thoracic cavity. A. True A. True pg. 359: The patient is rotated into a 15° to 20° right anterior oblique (RAO) position to shift the sternum just to the left of the thoracic vertebrae and into the homogeneous heart shadow. The degree of obliquity required is dependent on the size of the thoracic cavity. Large deep chested thorax (hypersthenic = 15°) requires less rotation than a thin patient (hyposthenic/asthenic = 20°). Hypersthenic patient = distance between the spine and sternum is already great to begin with because of their body habitus and size, so we don't have to rotate them as far. Asthenic patient = distance between the spine and sternum is much less and we have to rotate them more to get them offset from each other. The left anterior oblique (LAO) position of the sternum provides the best frontal image of the sternum with a minimal amount of distortion. A. True B. False pg. 359: RAO Which of the following techniques is most effective in preventing lung markings from obscuring the sternum on an oblique projection? A) Use a high kV. D) Use an orthostatic (breathing) technique. pg. 359: a breathing technique may be used for radiographic examination of the sternum. A breathing technique involves the patient taking shallow breaths during the exposure. This technique is also referred to as an orthostatic technique. If performed properly, the lung markings overlying the sternum will become obscured, whereas the image of the sternum will remain sharp and well defined. Why is the RAO sternum preferred to the LAO position? A) The RAO produces less magnification of the sternum. B) The RAO projects the sternum over the shadow of the heart. pg. 359: The patient is rotated into a 15° to 20° right anterior oblique (RAO) position to shift the sternum just to the left of the thoracic vertebrae and into the homogeneous heart shadow. Which of the following statements is true about radiography of ribs located above the diaphragm? A) Suspend breathing upon inspiration. A) Suspend breathing upon inspiration. pg. 360: Suspend respiration and expose on inspiration - Perform the study with the PT erect, gravity assists in lowering the diaphragm. - Use an analog kV range of 70 to 80 - You don't always use an AP projection - the decision to do an AP or PA projection is dependent upon the area of injury (posterior or anterior ribs) and putting the side of interest closest to the IR. Which of the following positions will best demonstrate the axillary portion of the left ribs? A) AP C) Left posterior oblique (LPO) pg. 371: Posterior oblique positions = affected side toward IR. Anterior oblique positions = affected side away from IR pg. 372: To demonstrate the axillary portion of the right ribs, perform a RPO or LAO. To demonstrate the axillary portion of the left ribs, perform an LPO or RAO position. pg. 361: Select the projections that will place the area of interest closest to the IR and rotate the spine away from the area of interest. Which of the following positions will best demonstrate the axillary portion of the right ribs? A) AP C) LAO pg. 371: Posterior oblique positions = affected side toward IR. Anterior oblique positions = affected side away from IR pg. 372: To demonstrate the axillary portion of the right ribs, perform a RPO or LAO. To demonstrate the axillary portion of the left ribs, perform an LPO or RAO position. pg. 361: Select the projections that will place the area of interest closest to the IR and rotate the spine away from the area of interest. A right or left marker may be taped over the area of interest to indicate the location of the trauma to the ribs. A. True B. False pg. 361: some departments protocols request the technologist tape a small metallic BB or some other small type of radiopaque marker over the site of injury before obtaining the images. This ensure the radiologist is away of the location of the trauma or pathology as indicated by the patient. A recommended practice is to decrease the SID to less than 40 inches (102 cm) for the oblique sternum projection to increase the magnification and resultant unsharpness of overlying ribs. A. True B. False pg. 359: a minimum SID for sternum radiography is 40" In the past a common practice was to lower the SID to create magnification of the overlying posterior ribs and sternum with resultant unsharpness (blurring). Although this produced a more visible but distorted image of the sternum, it also resulted in an increase in radiation exposure to the patient. Therefore this practice is not recommended. Which of the following conditions may occur with trauma to the ribs? A) Airway obstruction of the trachea C) Hemothorax pg. 361: Trauma to the bony thorax may result in injury to the respiratory system, and patients may require erect AP and lateral projections of the chest to rule out a possible pnuemothorax, hemothorax, pulmonary contusion, or other chest pathology. What is the recommended degree of obliquity for an RAO projection of the sternum for an asthenic (thin-chested) type of patient? A) 20° A) 20° pg. 359: a patient with a shallow or thin chest requires more rotation than a patient with a deep chest to cast the sternum away from the thoracic spine. Hypersthenic patient has a greater AP measurement and requires less rotation (15°) Asthenic patient has a decreased AP and requires more rotation (20°). Which position can replace the RAO of the sternum if the patient cannot lie prone? A) LAO C) LPO pg. 364: adaptation - this can be obtained in an LPO position if the patients condition does not permit an RAO position. Also, if the patient cannot be rotated, an oblique image may be obtained by angling the CR 15° to 20° across the right side of the patient to project the sternum lateral to the vertebral column, onto the heart shadow. LPO: patient faces away from the board, left posterior side is against the IR, CR is 1" to the right of the midline of the patient. What is the recommended SID for the lateral sternum position? A) 40 inches (102 cm) D) 60 to 72 inches (152 to 183 cm) pg. 365: an SID of 40" in the minimum SID that should be used, but 60" to 72" is recommended to reduce magnification of the sternum caused by increased OID. Where is the CR centered for a PA projection of the sternoclavicular joints? A) At the level of the vertebra prominens (T1) C) Three inches (7 cm) distal to the vertebra prominens (T2-3) pg. 366: CR perpendicular, centered to the level of T2-T3, or 3" (7 cm) distal to the vertebrae prominens (spinous process of C7). How much rotation and which oblique position are required to best demonstrate the left sternoclavicular joints? A) 10° to 15° LAO A) 10° to 15° LAO pg. 367: anterior oblique positions (RAO, LAO) - best visualizes the sternoclvicular joint on the downside. A 10° to 15° rotation in an anterior oblique position will rotate the SC joint across the spine to the opposite side; thus, and RAO will best demonstrate the right or downside SC joint. The LAO position will best demonstrate the left SC joint. LAO: patient prone, the left side is down touching the IR, and right side is rotated up 10° to 15°. RAO: patient prone, the right side is down touching the IR, and left side is rotated up 10° to 15°. Which two projections must be taken for an injury to the right anterior, upper ribs? A) PA and LAO A) PA and LAO pg. 371: Right anterior pain = side of interest is the right anterior aspect of the ribs PA puts the anterior side (side of interest) closest to the IR. Anterior injury = rotate away from the side of interest because its anterior pain, therefore patient is in a LAO position. LAO = right side anterior pain, plus rotating away from the affected side puts the patient into an LAO Which two projections must be taken for an injury to the left posterior, lower ribs? A)
AP and LPO A) AP and LPO pg. 371: Left posterior pain = side of interest is the left posterior aspect of the ribs AP - puts posterior side (side of interest) closest to the IR Posterior injury = rotate toward the side of interest because its posterior pain, therefore patient is in a LPO position. LPO position - left sided posterior pain plus rotating toward the affected side puts the patient into an LPO. What kV range (digital systems) is recommended for an AP projection of the ribs found below the diaphragm? A) 75 to 85 kV A) 75 to 85 kV pg. 360: digital kV = 80 ± 5 Which disease or condition may be associated with postoperative complications of open heart surgery? A) Spondylitis C) Osteomyelitis pg. 363: Osteomyelitis - this localized or generalized infection of bone and marrow can be associated with postoperative complications of open heart surgery, which requires the sternum to be split. The most common cause of osteomyelitis is a bacterial infection. Fracture of adjacent ribs in two or more places with associated pulmonary injury is known as a(n) _____ rib injury. A) compound B) flail chest pg. 363: flail chest - this fracture of adjacent ribs in two or more places is caused by blunt trauma and is associated with underlying pulmonary injury. The radiographic appearance of the erosion of bony rib margins is a possible indication of: A) osteomyelitis. A) osteomyelitis. pg. 363: Osteomyelitis radiographic appearance - erosion of bony margins. Which of the following conditions, if severe, often requires a decrease adjustment of manual exposure factors? A) Osteoblastic metastases D) None of the above pg. 363 Osteoblastic metastases = proliferative bony lesions of increased density = none, or decrease of exposure factors depending on severity. Osteomyelitis = no change in exposure factors Flail chest = no change in exposure factors Osteolytic metastases = destructive lesions = none, or increase of exposure factors depending on severity. Both nuclear medicine and magnetic resonance imaging (MRI) studies can be performed to evaluate metastatic rib lesions before conventional rib radiographic examination. A. True B. False pg. 363: see table 10.2 Most common radiographic exam for metastases = routine radiographic views, nuclear medicine bone scan. A congenital defect characterized by anterior protrusion of the lower sternum and xiphoid process is termed: A) pectus excavatum. C) pectus carinatum. pg. 363: pectus carinatum - this congenital defect is characterized by anterior protrusion of the lower sternum and xiphoid process. It is usually a benign condition but could lead to cardiopulmonary complications in rare cases. Multiple myeloma is seen often in the flat bones of the bony thorax. A. True A. True Which condition of the sternum is often termed "funnel chest"? A) Pectus excavatum A) Pectus excavatum pg. 363: Pectus excavatum - also referred to as funnel chest, this deformity is characterized by a depressed sternum. Both bony and soft tissue anatomy may be evaluated by CT for pathology involving the sternum or the sternoclavicular joints. A. True A. True pg. 362: CT provides sectional images of the bony thorax. Skeletal detail and associated soft tissues may be evaluated with CT when clinically indicated. CT is useful for visualizing pathology involving the sternum and/or sternoclavicular joints without obstruction by overlying dense structures. The condition flail chest is most commonly caused by: A) pneumothorax. C) blunt trauma. pg. 363: flail chest - this fracture of adjacent ribs in two or more places is caused by blunt trauma and is associated with underlying pulmonary injury. A radiograph of an RAO sternum reveals that it is partially superimposed over the spine. What must be done to eliminate this problem during the repeat exposure? A) Perform an LPO projection instead of an RAO. C) Increase rotation of the body. pg. 364: correct rotation is demonstrated by visualizing the sternum alongside the vertebral column with no superimposition by vertebrae. No distortion of sternum due to excessive rotation of the thorax. i.e. the sternum should be just offset from the spine - if this distance is large, then we are over rotated. If the sternum is sitting on the spine partially, then the patient is under rotated. A radiograph of a lateral projection of the sternum reveals that the patient's ribs are superimposed over the sternum. What needs to be done to correct this problem during the repeat exposure? A) Increase the SID. C) Ensure that the patient is not rotated. pg. 365: correct position with no rotation demonstrates the following: - no superimposition of hermi, shoulders, or soft tissue on sternum. - entire sternum with no superimposition of ribs. - lower aspect of the sternum not obscured by breasts. A radiograph of an RAO projection of the sternum demonstrates excessive lung markings obscuring the sternum. A 1-second exposure time and an orthostatic (breathing) technique were used. Which of the following will produce a more diagnostic image of the sternum? A) Ensure that the patient is not breathing during the exposure. B) Increase the exposure time; decrease the mA. pg. 364: orthostatic breathing technique requires a minimum of a 3-second exposure time and a low mA to produce blurring of overlying vascular structures. A PA radiograph of the sternoclavicular (SC) joints demonstrates unequal distance from the SC joints to the midline of the spine. The left SC joint is farther from the sternum than the right. What specific positioning error is present on this radiograph? A) Slight right rotation (right side toward the image receptor) A) Slight right rotation (right side toward the image receptor) pg. 366-367: In an RAO, the patients right side is closest to the IR, therefore their left is farthest from the IR. In this situation, the patient is rotated too far to the right for the PA projection. A young female patient from the emergency department (ED) is brought to radiology for rib examination. She is able to sit up or stand for the procedure. She indicates that the region of pain is to the right anterior-to-mid axillary region. Which rib projections should be performed to minimize the effective dose to this patient? A) PA and RPO D) PA and LAO pg. 371: Right anterior pain = side of interest is the right anterior aspect of the ribs PA puts the anterior side (side of interest) closest to the IR. Anterior injury = rotate away from the side of interest because its anterior pain, therefore patient is in a LAO position. LAO = right side anterior pain, plus rotating away from the affected side puts the patient into an LAO A patient enters the ED with an injury to the left anterior lower ribs. Which of the following projections should be taken to demonstrate the involved area? A) AP and LAO B) PA and RAO pg. 371: Left anterior pain = side of interest is the left anterior aspect of the ribs PA puts the anterior side (side of interest) closest to the IR. Anterior injury = rotate away from the side of interest because its anterior pain, therefore patient is in a RAO position. RAO = left side anterior pain, plus rotating away from the affected side puts the patient into an RAO An ambulatory patient enters the ED with a possible injury to the right upper posterior ribs. Which of the following positioning routines should be taken to demonstrate the involved area? A) Erect PA and LPO B) Erect AP and RPO pg. 360: Above Diaphragm = take the radiograph erect. pg. 371: Right posterior pain = side of interest is the right posterior aspect of the ribs AP - puts posterior side (side of interest) closest to the IR Posterior injury = rotate toward the side of interest because its posterior pain, therefore patient is in a RPO position. RPO position - right sided posterior pain plus rotating toward the affected side puts the patient into an RPO. A patient enters the ED with blunt trauma to the sternum. The patient is in great pain and cannot lie prone on the table or stand erect. Which of the following positioning routines would be best for the sternum examination in this situation? A) RPO and lateral recumbent projections
C) LPO and horizontal beam lateral projections pg. 364: adaptation - RAO can be obtained in an LPO position if the patients condition does not permit an RAO position. pg. 365: the lateral image can be obtained with the use of a horizontal x-ray beam with the patient in the supine position if the patient's condition warrants this modification. A patient enters the ED with trauma to the bony thorax. The initial radiographs reveal that there are fractured ribs and a possible pneumothorax of the left thorax. The physician orders a chest study to confirm the pneumothorax; however, the patient cannot stand. Which of the following positions would best demonstrate the pneumothorax? A) Left lateral decubitus B) Right lateral decubitus pg. 361: If the patient cannot assume the erect position and the presence of air-fluid levels must be ruled out, an image obtained with a horizontal beam with the patient in a decubitus position should be included. pg. 97: radiograph may be taken as a right or left lateral decubitus. For possible fluid in the pleural cavity (pleural effusion), the suspected side should be down. For possible small amounts of air in the pleural cavity (pneumothorax) the affected side should be up. Initial PA projections of the SC joints indicate a possible bony defect involving the right SC joint. The vertebral column is preventing a clear view of it. Which of the following projections will demonstrate the right SC joint without superimposition over the spine? A) Horizontal beam lateral C) RAO pg. 367: the RAO visualizes the right SC joint, and the LAO visualizes the left SC joint RAO: patient prone, the right side is down touching the IR, and left side is rotated up 10° to 15°. What is the minimum number of ribs that must be demonstrated for a unilateral rib study above the diaphragm? A) Ribs 1 through 6 C) Ribs 1 through 9 pg. 360: states that on the upper, we should suspend on inspiration to project the diaphragm below the ninth or tenth ribs on full inspiration. pg. 368: above diaphragm - ribs 1-9 should be visualized. The use of 125 kV is recommended for AP and PA projections of the ribs to reduce skin dose. A. True B. False pg. 360: Uppers = select a medium, kV range (analog: 70-80; digital 80 ± 5) because the upper ribs are surrounded by lung tissue, and a lower kV will preserve radiographic contrast and will allow visualization of the ribs through the air-filled lungs. Lowers = select a medium, kV range (analog: 70-80; digital 80 ± 5) because the lower ribs are surrounded by the muscular diaphragm and dense abdominal structures, a medium kV will ensure proper penetration of these tissues. A lateral projection of the sternum requires that respiration be suspended on expiration. A. True B. False pg. 365: suspend respiration on inspiration A radiograph of an RAO projection of the ribs demonstrates the left axillary ribs are foreshortened, whereas the right side is elongated. Which of the following is the most likely reason for this radiographic outcome? A) The patient requires more rotation to the right. B) An LAO was performed rather than the RAO position. pg. 372: to demonstrate the axillary portion of the right ribs perform an RPO or LAO position. To demonstrate the axilalry portion of the left ribs, perform an LPO or RAO. An LAO would demonstrate the side that is away from the IR, which would be the right side. This would lead to foreshortening of the left side. A patient with metastatic disease in the ribs comes to radiology following a nuclear medicine scan. The radiologist orders a right, upper posterior rib study. Which of the following positioning factors should be followed for this specific study? A) Perform positions erect if the patient's condition permits. D) Both A and C are correct pg. 360: Uppers - take the radiograph erect if the patient is able to stand or sit. Pg. 371: Posterior right rib study = side of interest is the posterior right aspect of the ribs. AP - puts posterior side (side of interest) closest to the IR RPO will demonstrate the axillary portion of the right ribs. Which of the following positioning considerations does NOT apply for a study of the lower ribs? A) Perform positions recumbent. B) Use a digital kV range between 65 and 70 kV. pg. 360: Below diaphragm - take the radiographs with the patient recumbent - suspend respiration and expose on expiration. - select a medium, kV range (analog: 70-80; digital 80 ± 5) The purpose of the breathing technique for an oblique sternum is to place the anatomy closest to the IR. A) True B) False pg. 359: Orthostatic breathing - if performed properly, the lung markings overlying the sternum will become obscured, whereas the image of the sternum will remain sharp and well defined. Which bone classification are ribs? A) flat A) flat pg. 9: flat bones consist of two plates with cancellous bone and bone marrow between them. Examples of flat bones are the bones that make up the calveria, sternum, ribs, and scapulae. Which radiographic position best demonstrates the sternum projected within the heart shadow? A) LAO c. RAO pg. 359: Because the thoracic spine is so dense, it is almost impossible to see the sternum in a true PA or AP projection. Therefore, the patient is rotated in a 15° to 20° right anterior oblique (RAO) to shift the sternum just to the left into the homogeneous heart shadow. How should the central ray be directed for the oblique position to best demonstrate the sternum? A) perpendicularly a. perpendicularly pg. 364: the CR is perpendicular to the IR, directed to the center of the sternum (1" left of the midline, and midway between the jugular notch and xiphoid process) Which procedure should be performed for the lateral projection of the sternum? A) rotate the shoulders forward D) increase the source-to-image receptor distance to 72" pg. 365: - Shoulders and arms drawn back - Suspend respiration on inspiration - SID of 60" to 70" is recommended to reduce magnification of the sternum caused by increased OID. How should the central ray be directed and centered for the PA projection for bilateral sternoclavicular joints? a. perpendicular to T3 a. perpendicular to T3 pg. 366: CR perpendicular, centered to the level of T2-T3 To most effectively demonstrate injured anterior ribs numbers 5 and 6 on the right side, which two projections should be included as part of the series? a. PA and PA oblique with the patient LAO a. PA and PA oblique with the patient LAO pg. 371: Right anterior pain = side of interest is the right anterior aspect of ribs 5 & 6. PA puts the anterior side (side of interest) closest to the IR. Anterior injury = rotate away from the side of interest because its anterior pain, therefore patient is in a LAO position. LAO = right side anterior pain, plus rotating away from the affected side puts the patient into an LAO To most effectively demonstrate injured posterior ribs numbers 5 and 6 on the left side, which two projections should be included as part of the series? a. PA and PA oblique with the patient LAO c. AP and AP oblique with the patient LPO pg. 371: Left posterior pain = side of interest is the left posterior aspect of ribs 5 & 6 AP - puts posterior side (side of interest) closest to the IR Posterior injury = rotate toward the side of interest because its posterior pain, therefore patient is in a LPO position. LPO position - left sided posterior pain plus rotating toward the affected side puts the patient into an LPO. Which two projections best demonstrate injured posterior ribs numbers 10, 11 & 12 on the right side? a. AP and AP oblique with the
patient LPO b. AP and AP oblique with the patient RPO pg. 371: Right posterior pain = side of interest is the right posterior aspect of ribs 5 & 6 AP - puts posterior side (side of interest) closest to the IR Posterior injury = rotate toward the side of interest because its posterior pain, therefore patient is in a RPO position. RPO position - right sided posterior pain plus rotating toward the affected side puts the patient into an RPO. Which radiographic position best demonstrates the posterior 11th rib on the right side without vertebral superimposition? a. LAO d. RPO pg. 372: To demonstrate the axillary portion of the right ribs, perform an RPO or LAO position. Right posterior pain = side of interest is the right posterior aspect of the 11th rib = RPO Which radiographic position best demonstrates the anterior 6th rib on the left side without vertebral superimposition? a. LAO c. RAO pg. 372: To demonstrate the axillary portion of the left ribs, perform and LPO or RAO position. Left anterior pain = side of interest is the left anterior aspect of the 6th rib = RAO What is the proper name for that structure commonly called the "breastbone"? a. scapula b. sternum For the AP projection demonstrating ribs above the diaphragm, when should respiration be suspended and what effect will that have on the diaphragm? a. on full inspiration; will depress the diaphragm a. on full inspiration; will depress the diaphragm pg. 360: Above diaphragm - suspend respiration and expose on inspiration. This should project the diaphragm below the ninth or tenth ribs on full inspiration. For the AP projection demonstrating ribs below the diaphragm, when should respiration be suspended and what effect will that have on the diaphragm? a. on full inspiration; will depress the diaphragm d. on full expiration; will elevate the diaphragm pg. 360: Below diaphragm - suspend respiration and expose on full expiration. This should allow the diaphragm to rise to the level of the seventh or eighth posterior ribs, providing a uniform density for below diaphragm ribs. When performing the AP projection to demonstrate ribs below the diaphragm, with reference to the patient, how should the image receptor be positioned? a. center the image receptor at the level of L3 d. lower border of the image receptor at the level of iliac crests pg. 370: IR centered to CR (bottom of IR at iliac crest) Which projection best demonstrates the axillary portion of ribs? a. AP projection d. AP oblique projection pg 371: Oblique positions will demonstrate the axillary portion of the ribs that is not well seen on the AP-PA projections. Which of the following evaluation criteria pertains to the AP oblique projection for ribs? a. trachea should be seen in the midline of the thorax c. axillary portion of the ribs of interest should be free of superimposition pg. 372: the axillary portion of the ribs under examination is projected without self super-imposition. Which of the following articulates with the articular facets located just lateral to the jugular notch? a. ribs b. clavicles pg. 356: the medial aspect of each clavicle articulates with the lateral aspect of the manubrium of the sternum at the clavicular notch, and is called the sternoclavicular joint. Where on the sternum is the jugular notch located? a. lateral border of the
body d. superior border of the manubrium pg. 356: the uppermost border of the manubrium is easy to palpate and is called the jugular notch. Which part of the sternum is located at the level of T10? a. body d. xiphoid process pg. 356: The xiphoid process corresponds to the level of T9-T10 Which classification refers to ribs that have no anterior attachments? a. true c. floating pg. 357: Ribs 11 & 12 are termed floating ribs because they are not connected anteriorly. Which pairs of ribs are classified as true ribs? a. first 7 pairs a. first 7 pairs pg. 357: Ribs 1 to 7 are term,ed true ribs. Which articulation is formed in part with a head of a rib? a. costosternal b. costovertebral pg. 358: see table 10.1 Costovertebral joints - between heads of ribs and thoracic vertebrae With which structures do heads of ribs articulate? a. cartilage of adjacent ribs c. demifacets of thoracic vertebrae pg. 357: The vertebral end of a rib consists of a head which articulates with one or two thoracic vertebral bodies pg. 298: Each thoracic vertebrae has a facet or demifacet on each side of the body. Each facet or combination of two demifacets accepts the head of a rib to form a costovertebral joint. Which of the following landmarks can be palpated to locate the upper margin of the sternum on the obese patient? A) Vertebra prominens C) Jugular notch pg. 362: the easiest landmark to locate through palpation is the jugular notch. Use this landmark for sternum and rib positioning to determine the upper boarder of the sternum, SC joints, and ribs. It is a safe practice to decrease the SID to 30 inches (77 cm) for the oblique sternum projection. A. True B. False pg. 359: a minimum SID for sternum radiography is 40" In the past a common practice was to lower the SID to create magnification of the overlying posterior ribs and sternum with resultant unsharpness (blurring). Although this produced a more visible but distorted image of the sternum, it also resulted in an increase in radiation exposure to the patient. Therefore, this practice is not recommended. An erect lateral projection of the sternum requires that respiration be suspended on expiration. A. True B. False pg. 365: suspend respiration on inspiration The left anterior oblique (LAO) position of the sternum provides the best frontal image of the sternum with it superimposed over the heart. A. True B. False pg. 359: RAO The patient is rotated into a 15° to 20° right anterior oblique (RAO) position to shift the sternum just to the left of the thoracic vertebrae and into the homogeneous heart shadow. Which analog kV range is recommended for an AP study of the ribs found below the diaphragm? A) 85 to 90 kV D) 70 to 80 kV pg. 360: medium kV (analog = 70 to 80) Which costocartilage attaches to the sternum at the level of the sternal angle? A) First B) Second pg. 357: the second costocartilage connects to the sternum at the level of the sternal angle. What is the joint space between the manubrium and body of sternum called? A) Sternal notch C) Sternal angle pg. 356: the lower end of the manubrium joins the body of the sternum to form a palpable prominence, the sternal angle (manubriosternal joint) Which condition is characterized by anterior protrusion of the lower sternum and the xiphoid process?A congenital defect characterized by anterior protrusion of the lower sternum and xiphoid process is termed: pectus excavatum.
Which vertebra is located at the level of the xiphoid process?The xiphoid process is the smallest and most inferior portion of the sternum, positioned at the level of the T10 vertebra.
Which of the following structures connect the anterior aspect of the ribs to the sternum?The sternum is a partially T-shaped vertical bone that forms the anterior portion of the chest wall centrally. The sternum is divided anatomically into three segments: manubrium, body, and xiphoid process. The sternum connects the ribs via the costal cartilages forming the anterior rib cage.
Where is the xiphoid process quizlet?Where is the xiphoid process located? Location:Thoracic wall; Twelve pairs of curved, flat bones; Where are the ribs located?
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Which condition is characterized by anterior protrusion of the lower sternum and the xiphoid process quizlet?
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