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68 Cards in this Set
- Front
- Back
what type of exam is retrograde urography? |
nonfunctional radiographic exam of the urinary system |
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how is contrast injected in retrograde urography? |
via catheterization in a retrograde fashion directly into the pelvicaliceal system |
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why is retrograde urography considered nonfunctional? |
because the patient's physiologic processes are not involved |
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2 indications for retrograde urography or evaluation of the collecting system |
1. renal insufficiency 2. allergic to iodinated contrast media |
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how is function determined during a retrograde urogram? |
doctor injects blue dye into the veins of the patient by way of IV and watches the dye filter down into the bladder through a scope |
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what two things do retrograde urograms demonstrate? |
1. location of urinary calculi 2. evaluate other types of obstructions |
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what position is the patient started in for retrograde urograms? |
modified lithotomy position |
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what are the typical radiographic images done for a retrograde urogram? |
1. scout 2. pyelogram 3. ureterogram |
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what image is done when the pt is catheterized? |
scout |
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what image demonstrates contrast filled renal pelvis on a retrograde urogram? |
Pyelogram |
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what image is done when the urologist withdraws the cathetar and demonstrates the ureters without the cathetar? |
ureterogram |
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what does the scout allow? |
the tech to check technique and positioning and the urologist to check the position of the catheter |
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scout positioning; CR, down what plane;respiration |
KUB; iliac crest, down the msp; suspended |
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what is the second radiograph? |
pyelogram |
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how many ccs of contrast is injected through the catheter in a retrograde urogram? |
3-5ccs |
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what is the third radiograph taken? |
ureterogram |
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exam of the urinary bladder |
cystography |
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exam of the urinary bladder and ureters |
cystoureterography |
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exam of the urinary bladder and urethra |
cystourethrography |
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radiographic exam of the urinary bladder after retrograde filling with a iodinated contrast media via a urethral catheter |
retrograde cystography |
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where are retrograde cystograms performed? |
in the R&F room |
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what type of study is a cystogram? |
static study |
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indications for retrograde cystography (6) |
1. vesicoureteral reflux 2. recurrent urinary tract infections 3. bladder trauma 4. fistula 5. nocturnal enuresis- bed wetting 6. extravasation |
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contraindications to retrograde cystography |
inability to catheterize patient |
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what contrast media is used for retrograde cystography? |
diluted iodinated contrast |
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how many bottles and what size for retrograde cystography? |
2x 300cc's bottles |
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what is the bowel prep for retrograde cystography? |
none |
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how many FPS for retrograde cystography? |
1 fps |
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what are voiding studies done for? |
to show urethral canal and reflux |
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once pt. is catheterized, what position are they placed in at the start of a voiding cystogram? |
supine |
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typical foley cath size |
16 fr |
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the smaller the fr., |
the narrower the opening |
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average bladder capacity |
500ccs |
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what kvp for retrograde cystography? |
70-80kvp |
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what size IRs for overheads during retrograde cystography?what orientation and why? |
10x12; LW to include distal ureters |
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position and projections for overheads |
AP axial/PA axial- supine or prone AP obliques- RPO and LPO left lateral- lt. lateral recumbent AP-supine (post void) |
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CR for AP axial projection; respiration |
10-15* caudal @ 2" above p.s.; expiration |
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CR for PA axial projection; where does it exit? |
10-15* cephalic, 1" distal to coccyx; slightly above p.s. |
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how many degrees is the pt obliqued for AP oblique projection? how is the thigh positioned? |
40-60*; posterior |
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CR for AP oblique |
T 2" above p.s. and 2" medial to upside ASIS |
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respiration for AP oblique |
expiration |
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what plane is centered for left lateral projection? |
MCP |
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where is the IR centered for left lateral projection? |
2" above p.s. |
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CR for left lateral projection |
T, 2" above p.s. on MCP |
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respiration for left lateral projection |
expiration |
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CR for post void on 10 x 12 |
T, 2" above p.s. |
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CR for post void on 14 x 17 |
T to crest on MSP |
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what does a post void image show if vesicoureteral reflux was present? |
whether the kidneys have emptied |
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radiographic examination of the urinary bladder and urethra utilizing contrast |
cystourethrography |
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what type of study is a cystourethrogram? |
functional study |
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what is similar and what is different about cystourethrograms vs. cystograms? |
same general set up and similar procedure, except patient voids contrast on radiographic table under fluroscopy |
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4 indications for cystourethrography |
1. urinary incontinence 2. dilatation of urethra 3. strictures 4. diverticuli |
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contraindication to cystourethrography |
inability to cath. patient |
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how many and what size bottles of contrast for cystourethrography |
2 350cc bottles |
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how many fps for cystourethrography? |
2 fps |
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what 2 positions and projections for cystourethrography |
AP-supine AP oblique- RPO |
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Male patient: how many degrees is the patient rotated for AP oblique cystourethrography? what position? how many FPS? |
35-40*; RPO;2 |
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what positions for female patient in cystourethrography? how many FPS? |
AP-supine and AP oblique 35-40*; RPO; 2 |
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what is metallic bead chain cystourethrography used for? |
done in females to check for anatomin abnormalities responsible for stress incontinence |
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what are male urethrography procedures done for? |
to demonstrate full length of male urethra |
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radiographic examination of urinary system in patients who had bladder removed due to CA |
loopogram |
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loopograms require retrograde filling through |
stoma |
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bladder is previously removed and ureters are connected to |
ileoconduit |
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where is the stoma located usually when an ileoconduit is formed on a patient? |
Rt. lower quadrant |
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a loopogram checks what? |
kidneys and ureters |
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loopograms are performed where? |
R/F room |
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how many FPS for loopograms? kVp for film? digital? |
1 fps; 70-80,80-85 |
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what type of contrast for loopogram? |
iodinated water soluble |