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CHAPTER 8 POSITIONIN
FINAL EVAL CHAPTER 8
Question | Answer |
---|---|
WHICH ONE OF THE FOLLOWING STRUCTURES IS NOT AN ASPECT OF THE PROXIMAL FEMUR? intertrochanteric crest, fovea capitis, obturator foramen, lesser trachanter | OBTURATOR FORAMEN |
WHICH ONE OF THE FOLLOWING STRUCTURES IS CONSIDERED TO BE MOST INFERIOR OR DISTAL? fovea capitis, lesser trachanter, neck, greater trochanter | LESSER TROCHANTER |
WHY MUST THE LOWER LIMB BE ROTATED 15-20 DEGREES INTERNALLY FOR AP HIP PROJECTIONS?separate greater troch from lesser troch, place fovea capitis into profiled position, to open up the femoroacetabular joint, to place the femoral neck parallal to the film. | TO PLACE THE FEMORAL NECK PARALLEL TO THE FILM |
T/F THE TERM PELVIC GIRDLE REFERS T THE TOTAL PELVIS INCLUDING THE SACRUM AND COCCYX? | FALSE |
WHICH BONES FUSE TO FORM THE ACETABULUM? ischium and pubis, ilium and ischium, pubis ilium sacrum, ischium pubis ilium | ISCHIUM, PUBIS, ILIUM |
WHICH ONE OF THE FOLLOWING BONY STRUCTURES CAN NOT BE PALPATED? ischial spine, ischial tuberosity, ASIS, symphysis pubis | ISCHIAL SPINE |
WHICH BONE OF THE PELVIC GIRDLE FORMS THE ANTERIOR INFERIOR ASPECT? ilium, ischium, pubis, sacrum | PUBIC |
THE SACROILIAC JOINTS ARE CLASSIFIED AS _________ JOINTS WITH ________MOBILITY? cartilaginous/amphiarthrodial, synovial/amphiarthrodial, cartilaginous/synarthrodial, fibrous/amphiarthrodial | SYNOVIAL, AMPHIARTHRODIAL |
THE SYMPHYSIS PUBIS PROVIDES LIMITED MOVEMENT DURING PELVIC TRAUMA AND .... walking/ running, flexing/extending, labor/delivery, voiding | LABOR AND DELIVERY |
THE TWO BONY LANDMARKS THAT ARE PALPATED FOR HIP LOCALIZATIONS ARE THE...ischial spine and symphysis pubis, symphysis pubis and greater trochanter, ASIS and crest of ilium, ASIS and symphysis pubis | ASIS AND SYMPHYSIS PUBIS |
USING THE ABOVE HIP LOCALIZATION METHOD, THE FEMORAL HEAD CAN BE LOCATED ... | 1 1/2 IN (4CM) BELOW THE MIDPOINT OF THE IMAGINARY LINE BETWEEN THE TWO BONY LANDMARKS |
GONADAL SHIELDING OF THE MALE PATIENT FOR AP PELVIS RADIOGRAPHY REQUIRES THAT THE SHIELD NOT EXTEND ABOVE THE LEVEL OF THE ...ASIS, Ischial spine, inferior border of the pubis, gonadal shielding cannot be used due to possible covering of pertinent anatomy | INFERIOR BORDER OF THE PUBIS |
A COMMON CONDITION OF TH FEMUR THAT ELDERLY PATIENTS DEVELOP THAT LEADS TO FREQUENT FRACTURES OF THE HIP IS...congenital hip dysplasia, carcinoma of the pelvis, avascular necrosis, paget's disease | AVASCULAR NECROSIS |
THE USE OF THE 80 KVP TECHNIQUE RATHER THAN 90 FOR AN AP PELVIS WILL HAVE WHAT EFFECT ON THE PATIENT DOSE? reduce dose by 30%, reduce dose by 15%, increase dose by 30%, difference is not measurable | WILL INCREASE DOSE BY 30% |
WHICH IONIZATION CHAMBERS, IN AN AEC SYSTEM SHOULD BE USED FOR AN AP PROJECTION OF THE HIP? center chamber only, center & right or left chambers depending on which hip, right or left chambers only depending on which hip, AEC should not be used for ap hip | CENTER CHAMBER ONLY |
WHERE IS THE CR PLACED FOR AN AP PROJECTION OF THE PELVIS?1 in (2.5cm) above symphysis pubis, level of ASIS, level of iliac crest, midway between ASIS and symphysis pubis | MIDWAY BETWEEN ASIS AND SYMPHYSIS PUBIS |
WHAT IS THE AMOUNT OF ABDUCTION OF THE FEMURS RECOMMENDED FOR AN AP BILATERAL FROG-LEG POSITION? 15-20, 25-30, 40-45, 90 | 40-45 DEGREES |
WHICH ONE OF THE FOLLOWING POSITIONS WILL BEST DEMONSTRATE THE SUPERIOR AND POSTERIOR RIM OF THE ACETABULUM? anterior oblique(teufel), ap axial(taylor), rpo and lpo projection, modified axiolateral(clements-nakayama) | ANTERIOR OBLIQUE (TEUFEL METHOD) |
WHICH ONE OF THE FOLLOWING PROJECTIONS PROVIDES THE GREATEST AMOUNT OF GONADAL DOSE FOR MALE PATIENTS (WITHOUT THE USE OF SHIELDING) ap hip, axiolateral inferosuperior projection, ap pelvis, ap bilateral frog leg (modified cleves) | AXIOLATERAL (INFEROSUPERIOR) PROJECTION |
WHAT CR ANGLE SHOULD BE UTILIZED FOR AN AP AXIAL (TAYLOR METHOD) PROJECTION FOR A MALE PATIENT?20-35, 15-20, 20-35, 0(cr perpendicular to film) | 20-35 DEGREES CEPHALAD |
HOW MUCH OBLIQUITY OF THE BODY SHOULD BE UTILIZED FOR ANTERIOR OBLIQUE PROJECTIONS FOR THE SACROILIAC (SI) JOINTS? 45, 60-70, 10-15, 25-30 | 25-30 DEGREES |
T/F THE RAO POSITION FOR SI JOINTS WILL DEMONSTRATE THE RIGHT JOINT? | TRUE |
T/F THE ANTERIOR OBLIQUE (TEUFEL METHOD) FOR THE ACETABULUM REQUIRES A 10-15 DEGREE OBLIQUITY OF THE BODY | FALSE |
T/F ONLY A SMALL PART, IF ANY OF THE LESSER TROCHANTER WILL BE VISIBLE ON A WELL-POSITIONED AXIOLATERAL (INFEROSUPERIOR) LATERAL HIP | TRUE |
WHICH PROJECTION WOULD BE IDEAL FOR A PATIENT WITH TRAUMA TO BOTH PROXIMAL FEMURS (IN ADDITION TO THE AP PELVIS) modified axiolateral(clements-nakayama), axiolateral(inferosuperior), anterior oblique, ap axial(taylor) | MODIFIED AXIOLATERAL (CLEMENTS-NAKAYAMA) |
THE PROPER NAME METHOD FOR THE UNILATERAL FROG-LEG PROJECTION IS THE ....danelius-miller, modified lauenstein and hickey, grashey, modified taylor | MODIFIED LAUENSTEIN AND HICKEY |
T/F THE MALE PELVIC INLET IS MORE ROUND THAN THE FEMALE | FALSE |
T/F THE PUBIC ARCH OF THE FEMALE IS USUALLY LESS THAN 90 DEGREES? | FALSE |
A xray OF AP PELVIS SHOWS LESSER TROCHANTERS ARE NOT VISUALIZED. WHAT SHOULD THE TECH DO TO CORRECT THIS PROBLEMS ON THE REPEAT EXPOSURE?rotate lower limb 15-20 internal, nothing, ensure ASIS are equal distance fom table top, angle cr 10-15cephalad | NOTHING. ACCEPT THE RADIOGRAPH AND DON'T REPEAT THE EXPOSURE |
A RADIOGRAPH OF AN AP PELVIS REVEALS THAT THE RIGHT ILIAC WING IS FORESHORTENED AS COMPARED WITH THE LEFT SIDE. WHAT SPECIFIC POSITIONING PROBLEM IS PRESENT ON THIS RADIOGRAPH. left rotation, right rotation, right tilt, incorrect cr centering/ angulation | LEFT ROTATION |
A RADIOGRAPH OF A UNILATERAL FROG LEG PROJECTION REVEALS THAT THE GREATER TROCHANTER IS SUPERIMPOSED OVER THE FEMORAL NECK. THE RADIOLOGIST IS CONCERNED ABOUT POSSIBLE FRACTURE INVOLVING THE NECK. WHAT CAN THE TECH DO TO IMPROVE VISIBILITY OF THE NECK | USE A 20-25 DEGREE CEPHALAD CR ANGLE |
A RADIOGRAPH OF AN AXIOLATERAL PROJECTION OF THE HIP REVEALS SOFT TISSUE SEEN ACROSS THE AFFECTED HIP. THIS ARTIFACT PREVENTS A CLEAR VIEW OF THE FEMORAL HEAD AND NECK. WHAT MUST THE TECH DO TO ELIMINATE THIS ARTIFACT OR ITS EFFECT DURING THE REPEAT EXPOS | INCREASE THE ELEVATION AND FLEXION OF THE PATIENT'S UNAFFECTED LEG. |
A RADIOGRAPH OF AN LPO PROJECTION FOR SI JOINTS REVEALS THAT HE ILIUM IS SUPERIMPOSED OVER THE INVOLVED SI JOINT. WHAT TYPE OF POSITIONING ERROR IS PRESENT ON THE RADIOGRAPH | EXCESSIVE ROTATION OR OBLIQUITY |
A RADIOGRAPH OF AN AXIOLATERAL INFERORSUPERIOR PROJECTION REVEALS THAT THERE IS AN EXCESSIVE AMOUNT OF GRID LINES PRESENT. WHAT WILL CORRECT THIS PROBLEM | KEEP CASSETTE PERPENDICULAR TO THE CR |
A PATIENT ENTERS ER WITH TRAUMA TO THE PELVIS. THE PATIENT'S MAIN CONCERN IS ABOUT HER LEFT HIP. WHICH ONE OF THE FOLLOWING PROJECTIONS SHOULD BE TAKEN FIRST TO RULE OUT THE FRACTURE OR DISLOCATION | AP PELVIS |
A NON TRAUMA PATIENT COMES TO RADIOLOGY WITH A HISTORY OF CHRONIC PAIN OF THE RIGHT HIP. THE PATIENT IS AMBULATORY AND HASN'T HAD PREVIOUS XRAYS TAKEN OF THAT HIP. WHICH ROUTINE WOULD BEST SUIT THIS PATIENT | AP PELVIS, LATERAL FROG LEG PROJECTION OF THE RIGHT HIP |
T/F GENERALLY GONADAL SHIELDING FOR FEMALES CANNOT BE USED FOR EITHER AN AP HIP OR AN AP PELVIS DUE TO THE PROBABILITY OF COVERING PERTINENT ANATOMY | FALSE |
T/F THE GONADAL DOSE FOR AN AP HIP WITH GOOD COLLIMATION AND CORRECTLY PLACED SHIELDING IS 3-5 TIMES GREATER FOR THE MALE THAN FOR THE FEMALE | TRUE |
T/F A PATIENT WITH EXCESSIVE EXTERNAL ROTATION OF THE FOOT MAY INDICATE A FRACTURED HIP | TRUE |
A RADIOGRAPH OF AN A AXIAL (TAYLOR) PROJECTION REVEALS THAT THE OBTURATOR FORAMINA ARE NOT SYMMETRICAL. WHAT TYPE OF POSITIONING PROBLEM IS PRESENT ON THE RADIOGRAPH | ROTATION OF PELVIS |
A PATIENT ENTERS ER WITH A POSSIBLE SEPARATION OF THE SYMPHYSIS PUBIS DUE TO TRAUMA. THE AP PELVIS IS INCONCLUSIVE FOR DETERMINING THE EXTENT OF THE INJURY. WHAT OTHER PROJECTION CAN BE TAKEN TO EVALUATE THIS REGION | AP AXIAL (TAYLOR) PROJECTION |
A PATIENT COMES TO RADIOLOGY FOR RIGHT HIP STUDY. PATIENT IS FROM AN EXTENDED CARE FACILITY AND IS CONFUSED ABOUT THE CAUSE OF INJURY. TECH TAKES AN AP PELVIS & ATTEMPTS A LATERAL FROG LEG. PATIENT COMPLAINS OF PAIN IN AFFECTED HIP. WHAT SHOULD TECH DO | PERFORM THE AXIOLATERAL INFEROSUPERIOR PROJECTION INSTEAD |
PATIENT ENTERS ER WITH A POSSIBLE BILATERAL FRACTURED HIPS. WHICH ROUTINE SHOULD BE PERFORMED | AP PELVIS AND MODIFIED AXIOLATERAL PROJECTION FOR BOTH HIPS |