renal didactic test out

Which of the following radiopharmaceuticals can be used to assess vesicoureteral reflux by the indirect method?

Tc-99m pentetate

The loops of Henle descend into the ...?

Medulla

A renogram(time-activity curve) demonstrates prompt uptake of tracer, with activity in the kidney peaking at 3 to 5 minutes after injection and decreasing to less than 50% of peak value by 20 minutes. The technologist should...

Suspect this to be normal

Effective renal plasma flow (ERPF) is measured with which of the following radiopharmaceuticals?

Tc-99m mertiatide

Morphologic renal imaging can be document...?

anatomical changes of the renal cortex

if normal resting cardiac output is 5L/min: the total renal blood flow would be approximately..........L/min?

1.2 L/min

Glomerular filtration rate (GFR) is measured with which of the following radiopharmaceuticals?

Tc-99m pentetate

Angiotensin converting enzyme inhibitor(ACEI) augments renal studies in patients with...?

Renal artery stenosis(RAS)-related hypertension

A normal adult glomerular filtration rate(GFR) is approximately .......mL/min?

125

DMSA is....?

Primarily used for renal cortical imaging

On a renal scan, the right kidney is slightly lower than the left kidney. Because of this, the technologist should:

Continue the scan because this is normal

Which of the following is true about cystography?

Direct cystography is more sensitive

In performing an effective renal plasma flow determination, the injection site should be imaged to....?

Rule out tracer infiltration

Which of the following equations is used to calculate residual bladder volume from a cystogram?

[(voided volume in mL x postvoid bladder counts)/(initial bladder counts - post void bladder counts)]

Radionuclide cystography performed using the direct method requires which of the following?

Catherization of the patient

Diuretics...?

Increase urine production

Which vessel carries blood to a cortical nephron?

Afferent arteriole

After an initial baseline renal imaging study demonstrating retained activity in the left kidney, furosemide was injected. The washout activity from the collecting system demonstrated a clearance half-time of less than 10 minutes after administration of the furosemide. This is most likely indicative of a(n)....?

Dilated but unobstructed kidney

Patient preparation for functional renal imaging should include which of the following?

Hydration of the patient

When performing a renal scan, why do we need to know the patient's height and weight?

For attenuation correction calculations, to normalize the ERPF to account for patient plasma volume differences, and to determine the depth correction calculation

What is the recommended amount of Captopril to be given orally an hour before renal imaging in a hypertensive study?

25-50 mg

Which agent would be preferred for SPECT imaging of the kidneys?

Tc-99m DMSA

Furosemide is sometimes administered during renal imaging to....?

Assess uteropelvic obstructions

The kidneys span the distance between the....?

12th thoracic vertebra and 3rd lumbar vertebra

Radionuclide scans of renal transplants are useful in identifying....?

Rejection, acute tubular necrosis, and infarction