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27 Cards in this Set
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evaluate GU tract rupture by inserting a catheter into the urethra and putting contract in the bladder with images taken while patient voids
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VCUG (Voided Cystourethrography)
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3 specific conditions IVP is good at diagnosing
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meduallary sponge kidney, papillary necrosis, and hydronephrosis
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How do you use CT to work up renal masses suspected to be cancer?
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get a CT with and without contract so that you can compare the images; enhancing renal masses are often malignant
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If contrast is contraindicated in a patient with a renal mass, what imaging is used to work it up?
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MRI
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Imaging that can be used to assess postvoid residual urine volume of the bladder
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US
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Kidney size in less than 9 cm in an adult- what does it indicate?
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significant irreversible or chronic renal disease
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This imaging technique can be used y
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Uses for IVP
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to get detailed view of pelvicaliceal system, assess renal size and shape, detect and localize renal stones, and asses renal function
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What condition do you see a "ring shadow" in?
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papillary necrosis
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What imaging is best used for GU screening of pregnant patients esp. in 1st trimester?
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US
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What imaging is useful for evaluating prostate or a biopsy of the prostate?
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transrectal US
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What imaging is useful for staging renal neoplasms and trauma also?
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CT
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What imaging modality is best for easily distinguishing renal cortex from medulla?
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MRI
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What imaging technique is used often for diagnosis of renal artery stenosis?
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MRA
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What imaging would you consider in a child with UTI prior to toilet training?
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VCUG (Voided Cystourethrography)
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What is color doppler used for?
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evaluating renal blood flow, vascularity of prostate tumors, and testalgia workup (torsion vs epididymitis)
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What is CTU useful for?
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hematuria workup especially if renal cancer is suspected---gives increased parenchymal resolution
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What is CTU?
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Computerized Tomography Urogram (CTU)--combo of IVP and abdominal CT
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What is MR angiography?
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MR study of blood vessels with or without contrast
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What is the best imaging to confirm papillary necrosis?
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IVP
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What is the best imaging towork up suspected cystic disease?
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US
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What is the best screening test for suspected hydronephrosis?
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US (followup with IVP or CT if necessary)
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What is the preferred method for evaluation of urinary reflux?
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VCUG (Voided Cystourethrography)
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When do you not need contract when doing a CT as followup to an IVP or US?
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for hemorrhage or stone evaluation
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When is IVP or IVU contraindicated?
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in patients with increased risk of developing acute renal failure, CKd, or multiple myeloma (b/c conract is used)
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Why might to kidney be enalrged on US?
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in acute disease from edematous fluid
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Why must we check creatinine before using IVP?
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decrease the risk of contrast nephropathy
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