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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Incorrect. Applying compression stockings may help reduce swelling but does not address the underlying cause. Additionally, compression stockings should not be used if the client has arterial insufficiency.
B. Incorrect. Elevation may provide temporary relief from swelling, but it does not address the underlying cause of fluid retention
in chronic renal failure.
C. Correct. The nurse should measure the client's blood pressure and pulse rate to assess for fluid overload and possible hypertension, which can be associated with chronic renal failure.
D. Incorrect. Assessing the client's daily protein intake is not the priority when the client presents with swelling in the ankles and legs. Fluid retention is a more immediate concern that requires assessment and intervention.
Correct Answer is A
Explanation
A. Correct. Phosphate binders are most effective when taken with meals because they bind to dietary phosphorus, preventing its absorption in the digestive tract.
B. Incorrect. While constipation can be a side effect of some phosphate binders, drinking plenty of fluids is not directly related to this issue.
C. Incorrect. Phosphate binders should be taken with meals, and calcium supplements should be taken separately to prevent interactions between the two medications.
D. Incorrect. Phosphate binders do not typically lower potassium levels, and monitoring potassium intake is not specifically related to their use.
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