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88 Cards in this Set

  • Front
  • Back
T/F a routine exam of the forearm requires PA, oblique, and lateral positions
False
T/F an AP projection of the upper extremity indicates that the palmar surface of the hand rests on the cassette
False
T/F the head of the ulna articulates with the trochlea, while the head of the radius articulates with the capitelum
False
T/F the PA forearm position shows superimposition of the radius over the ulna at the wrist point
False
T/F to demonstrate the coronoid process in profile, obtain the intenal oblique position of the elbow with the hand pronated
True
T/F the lateral position of the elbow shows the radial head without superimposition on the ulna
False
T/F to achieve ulnar deviation, the hand is pronated and then flexed to decrease the angle between the 5th digit and the forearm
True
T/F Resting the fingertips on the IR when performing an oblique hand position, assures that the interphalangeal joints are open
False
T/F adduct the arm when positioning for an AP humerus while using the upright bucky
false
T/F A 2-hour KUB is routine when performing an IVU when the kidneys demonstrate normal function and filtration through the collecting system
False
T/F KUB centering is used for the nephrogram and 10 minute images of an IVU
false
T/F Sensitivity to seafood is an indication of sensitivity to calcium in the IV contrast
False
T/F the central ray angle for the AP oblique projections of the urinary system is 25 degrees cephalic
False
To visualize kidney, ureters, and bladder mobility, what two patient positions are correct?
Supine and Upright
The longitudinal centering for urinary bladder is
CR enters midway between the ASIS and superior pubic symphysis
A 15-minute prone abdomen with an IVU study may be requested to....
Demonstrate filling of ureters & Move superimposing gas shadows
The 1st image of the IVU taken after injection is a one minute kidney. This image demonstrates
Function of Renal cortex
Which medication should be discontinued up to 48 hours after the administration of iodinated contrast
Glucaphage & Metformin
How much is the patient rotated from the supine for an AP oblique projection of the urinary system
25-30 degrees
T/F in retrograde urography the ureters must be catheterized
True
T/F a routine exam of the forearm requires PA, oblique, and lateral positions
false
T/F in retrograde urography - it provides little physiologic information
True
T/F in retrograde urography the contrast is injected directly into the pelvicalyceal system
True
Which projection would place the right kidney paralllel to the IR
LPO
T/F to position a PA projection of the wrist, the hand is pronated
True
T/F to position a PA projection of the wrist - it is flexed at the metacarpophalangeal joints
False
T/F to position a PA projection of the wrist it must be slightly rotated toward the 5th digit
False
T/F the lateral position for the wrist, forearm and elbow - the elbow is flexed 90 degrees for all
True
T/F the lateral position for the wrist, forearm, and elbow - the thumb is up for all
True
T/F the lateral position for the wrist, forearm, and elbow - The CR enters the radial side of the extremity for all
True
Describe a Boxers fracture
displaced fracture to the 5th metacarpal
In a trauma situation - with an obvious colle's fracture - which position is likely to need modification?
Lateral
The pisiform is demonstrated without superimposition with the ____ position
AP (semi-supination) oblique
The quality point that assures a true lateral elbow is..
The epicondyles are superimposed
Acute flexion of the elbow demonstrates
AP projection of the olecranon process
Fracture of the surgical neck of the humerus requires which position?
AP and transthoracic
soft tissue radiographs of elbow in the lateral position are often ordered to show
fat pads
most common projection of digits 2-5 is
PA with lateral rotation
which position demonstrates the scaphoid clearly
PA in Ulnar Flexion & 20 degrees CR angle
The 10 joints of the upper limb are all
synovial tissue & freely moveable
What is the landmark used for CR placement for lateral hand
MCP
What is the landmark used for CR placement for PA wrist
Radial and Ulnar styloids
a medical condition considered to be a contraindication for the administration of iodinated contrast is:
multiple myeloma
Where do you center for soft tissue neck?
CR enters midway between the top of shoulder and external auditory meatus (below laryngeal prominence) & CR enters anterior 1/3 of neck for lateral
What is the technique for soft tissue neck
65-70 kVp @ 8-12mAs
What are the Tech's responsibilities for UGI/Barium Swallow
1) prepare equipment for use: set console with exposure settings (70-80 with iodine), set fluro timer 2) attach spot film device, 3) move bucky tray to lowest position, 4) attach foot stand
characteristics of barium
suspension, is inert, passes unchanged through digestive tract, patient should drink plenty of liquids, flocculation causes constipation
describe gastrografin
is a medium water soluble, iodinated contrast - not absorbed - draws water from intestinal walls - can cause diarrhea - sodium meglumine salt diatrizoate
Describe hypaque 76
is a medium water soluble, iodinated contrast - low concentration of iodine
Describe sodium bicarbonate crystals
given orally with water, effervescent with liquid, it is a negative contrast medium, creates air in stomach, outlines the mucosa with a thin line of barium in double contrast studies
what is the patient prep for esophagram
undress completely, nothing else
what is the patient prep for UGI
NPO after midnight & 8 hours prior to exam, no gum or smoking, undress completely
What are they looking for in the Barium Swallow
narrowing, obstruction, varices, diverticulum in esophagus, reflux at cardiac sphincter
Things to know for Barium Swallow
exposure is during swallowing, exposure rate at 4 to 10 frames per second, recumbent best demonstrates reflux
postitions for barium swallow
Right lateral (erect) & 45 degree RAO (supine)
where do you center for erect barium swallow
transverse: 3-6" anterior from the back, longitudinal: top of cassette is 2" above shoulder
barium swallow technique
large focal spot, 40" SID, 90-110 kVp, center cell for timing, no breathing instructions
What is the order of positions for UGI
AP > R lateral > RAO > Prone
Order of LGI positions
AP rectosigmoid axial first > AP > RPO > LPO > left Lateral
Where is the barium located in an RAO UGI
Barium is located in body, pylorus, duodenal loop - air will be in the fundus
Where is the barium located in an LPO UGI
Barium is located in fundus - air will be in the body
Where is the barium located in an R lateral UGI
Barium in pylorus & duodenal loop
What is the centering for RAO for a UGI
Transverse: midway b/n spine; longitudinal: level of 10th anterior rib
What is the centering for RAO in UGI
Transverse: midway b/n xphoid process & lateral border of left side; Longitudinal: level of 10th anterior rib
What is the centering for Lateral in UGI
Transverse: center over anterior 3rd; longitudinal: level of 10th anterior rib
What are the typical positions for LGI?
AP, AP Axial, Lateral, RPO, LPO
What is the technique for LGI
100-120 kVp @ 300 mA, all 3 cells for AEC, 48" SID
What is the centering for AP in LGI
Center IR to iliac crests, midsagittal
Why is the AP postion done in LGI
Ascending/Descending colon completely included
What is the centering for AP axial in LGI
center IR 2" below ASIS, midsagittal plane
What is the tube angle for AP axial LGI
30-40 degrees cephalad; 2" below ASIS
What does the AP Axial positon show?
Rectosigmoid area of colon shown
What is the centering on the LPO in LGI
center to iliac crests & midline of body
What is the centering on the Lateral for LGI
midcoronal plane, center to ASIS
What is the centering on the RPO in LGI
center to iliac crest and midline of body, elevated side up
Why is the LPO in LGI position important
Shows the hepatic flexure
Why is the RPO in LGI position important
Demonstrates left (splenic) flexure and descending colon & Cecum
Why is the lateral position in LGI important
Demonstrates rectum and distal sigmoid
If air is in the transverse colon & the sigmoid what position is this LGI?
AP
If air is in the ascending and descending colon in an LGI
PA
where is the barium in the AP position in LGI
Ascending/descending colon & rectum
Where is the barium in the PA LGI
transverse and sigmoid colon
What is the patient prep for IVU
NPO for 8 hours prior, cleansing of colon, informed consent signature
What is the required patient history for IVU
allergies, multiple myeloma, high BP, taking glucophage or metformin, sickle cell disease
why do we use IV contrast in IVU
to observe renal cortex & renal parenchyma & renal collecting system
mild reactions from IV contrast
flush, metallic taste, hives/rash, rhinitis
Intermediate/Moderate reactions from IV contrast
pronounced uticaria, hypotension, wheezing, laryngeal edema
servere IV contrast reactions in IVU
profound hypotension, laryngospasm/edema, renal failure, anaphylatic shock, unresponsiveness