A nurse is caring for a client with acute renal failure who is undergoing a renal nuclear scan. What information should the nurse provide to the client about this diagnostic test?
"You will need to fast for 24 hours before the nuclear scan."
"The nuclear scan will assess your kidney function by measuring the glomerular filtration rate (GFR)."
"The procedure involves inserting a catheter into the bladder to obtain a urine sample."
"You will receive a small amount of radioactive material intravenously for the scan."
The Correct Answer is D
A. Incorrect. Fasting is not typically required before a renal nuclear scan.
B. Incorrect. The renal nuclear scan does not directly measure the glomerular filtration rate (GFR), which is typically assessed through blood tests.
C. Incorrect. A renal nuclear scan does not involve inserting a catheter into the bladder to obtain a urine sample.
D. Correct. A renal nuclear scan, also known as a renal scintigraphy, involves injecting a small amount of radioactive material intravenously. The radioactive material is taken up by the kidneys, and the scan creates images that assess kidney function and blood flow.
QUESTIONS
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Incorrect. Increased heart rate and blood pressure are more commonly associated with metabolic alkalosis, not metabolic acidosis.
B. Correct. Muscle twitching and irritability are common clinical manifestations of metabolic acidosis. Acidosis can lead to an increase in excitability of nerve cells, causing muscle twitching and irritability.
C. Incorrect. Excessive thirst and frequent urination are not typically associated with metabolic acidosis.
D. Incorrect. Warm, flushed skin and headache are not directly related to metabolic acidosis.
Correct Answer is C
Explanation
A. Incorrect. Increased glomerular filtration rate (GFR) would lead to increased urine output, not decreased urine output.
B. Incorrect. Obstruction of the urethra would cause postrenal acute renal failure and may lead to urinary retention, but it would not cause decreased urine output in prerenal or intrinsic acute renal failure.
C. Correct. In prerenal and intrinsic acute renal failure, impaired blood flow to the kidneys reduces the perfusion of nephrons, leading to decreased urine output.
D. Incorrect. Excessive fluid intake may contribute to fluid overload and decreased urine output in prerenal acute renal failure, but it is not the primary pathophysiological process that leads to decreased urine output.
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