COMP: stuff I didn't know

an enema bags capacity is approximately

3 quarts

the lower 2/5 of the small intestine is made up of

Ileum

what is the correct order of completion for the following exams

BE, Biliary exam, IVU, UGI

which image of the stomach is going to best demonstrate the duodenal bulb

RAO

when barium reaches the ileocecal valve it will end which exam

Small bowel

when there is barium in the transverse colon, what position is the patient in

prone

which view of the stomach will best demonstrate the fundus

LPO

the respiration for images of the stomach

expiration

the portion of the stomach that is located distal to the angular notch is the

pylorus

which portion of the small bowel has a fluffy appearance when viewed radiographically

jejunum

what is an example of a permanent grid

grid cap

what does the TG18-GC test evaluate

display/monitor

does wider window width increase or decrease contrast

decrease contrast

is bowel obstruction an additive or destructive disease

destructive

is emphysema an additive or destructive disease

destructive

metastases (osteolytic) additive or destructive

destructive

metastases (osteblastic) additive or destructive

additive

is multiple myeloma an additive or destructive

destructive

is emaciation an additive or destructive disease

destructive

is edema an additive or destructive disease

additive

is ascites an additive or destructive

additive

what fields in radiography would use a CMOS

mammography and dental

how much of the primary beam entering the patient reaches the IR

less than 5%

what is dynamic range

the exposure intensities that an IR can respond to and acquire image data

what type of contrast will a wide window width produce

low contrast

what type of contrast will a narrow window width produce

high contrast

what is MTF

measures ability of system to display contrast of anatomic objects varying in size

what is the central ray for a modified cleaves pelvis projection

1 inch above pubic symphysis

how much do you abduct the knees for a modified cleaves method pelvis projection

25-45 degrees

Launstein frog lateral hip CR

perpendicular to the hip joint

Hickey frog lateral hip CR

20-25 degrees cephalic enters 1 inch below hip joint

Clements method CR

15 degrees posteriorly shooting through the femoral neck

what does the Clements method demonstrate

acetabulum, femur head and neck, hip joint

which side is raised and how many degrees on a internal Judet method pelvis

affected side, 45 degrees

which side is raised and how many degrees on a external Judet method pelvis

unaffected side, 45 degrees

what is the central ray for an internal Judet method pelvis

perpendicular to 2 inches below ASIS

what is the central ray for an external Judet method pelvis

perpendicular to pubic symphysis

what is the Taylor method pelvis men CR

20-35 degrees, enters 2 inches below pubic symphysis

what is the Taylor method pelvis women CR

30-45 degrees, enters 2 inches below pubic symphysis

what does the Taylor method demonstrate

inferior and superior rami

what is the Bridgman method pelvis projection CR

40 degrees caudal, enters at ASIS

what does the Bridgman method pelvis demonstrate

pelvic inlet

what is the SID for an RAO sternum

30 inches

what is the SID for a lateral sternum

72 inches

how much do you rotate for a RAO sternum

15-20 degrees

CR for the axial Coyle method for Radial head

45 degrees to the radial head (toward shoulder), forearm is positioned 90 degrees

CR for axial Coyle method for coronoid process

45 degrees away from shoulder, forearm is positioned 80 degrees

why are the joints partially open on a forearm/elbow

beam divergence

what superior surface of the talus articulates with the tibia

trochlea

what makes up the shoulder girdle

scapula and clavicle

where is the intercondylar fossa located

on the distal and posterior femur between the femoral condyles

where is the coronoid fossa located

the distal and and anterior side of humerus

where is the olecranon fossa located

the distal and posterior side of humerus

joint where the head of the rib articulates with the body of the vertebrae

costovertebral joint

what is the acceptable range for exposure timer accuracy

5%

ma linearity

10%

exposure reproducibility

5%

kilovoltage peak needs to be

5%

half value layer

exceed required minimum

collimation (semi annually)

2% SID

vertical beam alignment (semiannually)

2% vertical

focal spot size

50%

image receptor system (semiannually)

zero visible defects

AEC

10%

which are tests are done semiannually

collimation, vertical beam alignment, image receptor system

what is the order contrast studies should be performed

urinary, biliary, lower GI, upper GI

CR for AP axial Townes if OML was used

30 caudal enters 2 ½ inches above glabella

CR for AP axial Townes if IOML was used

37 caudal enters 2 ½ inches above glabella