A client with chronic renal failure asks the nurse about the purpose of the glomerular filtration rate (GFR) test. What is the nurse's best response?
"The GFR test measures the volume of urine produced in 24 hours."
"This test helps assess the client's blood glucose levels."
"The GFR test evaluates how well your kidneys are filtering waste and fluids from the blood."
"It measures the client's ability to excrete potassium and sodium in the urine."
The Correct Answer is C
A. Incorrect. The volume of urine produced in 24 hours is measured through a different test called the 24-hour urine collection, not the GFR test.
B. Incorrect. The GFR test does not assess blood glucose levels; it is primarily used to evaluate kidney function.
C. Correct. The GFR test measures how well the kidneys are filtering waste and fluids from the blood. It is an important indicator of kidney function and is commonly used to stage chronic renal failure.
D. Incorrect. The GFR test does not specifically measure the excretion of potassium and sodium in the urine; instead, it focuses on overall kidney function and filtration rate.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Incorrect. A GFR value of 50 mL/min/1.73m² indicates some level of kidney dysfunction, not normal kidney function.
B. Incorrect. A GFR value of 50 mL/min/1.73m² indicates moderate kidney dysfunction, not mild impairment.
C. Correct. A GFR value of 50 mL/min/1.73m² is considered to represent moderate kidney dysfunction. This level of GFR indicates that the kidneys are not effectively filtering waste and fluids from the blood.
D. Incorrect. While a GFR value of 50 mL/min/1.73m² indicates kidney dysfunction, it does not represent severe kidney damage. Severe kidney dysfunction would have a much lower GFR value.
Correct Answer is B
Explanation
A. Incorrect. While physical activity is essential for overall health, the client's fatigue may be related to anemia, not lack of physical activity.
B. Correct. Fatigue and lethargy are common symptoms of anemia, which is a common complication of chronic renal failure. Iron supplements can help address anemia-related fatigue.
C. Incorrect. Increasing protein intake may not directly address the underlying cause of the client's fatigue, which is likely anemia.
D. Incorrect. Caffeine-containing beverages can contribute to fluid overload and hypertension in chronic renal failure and are not a suitable intervention for addressing fatigue.
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