Question

Which diagnostic result should the nurse review to best determine the medication excretion function of an older adult client?

Answer 1

The nurse should assess an older adult's blood urea nitrogen and creatinine clearance levels to determine the patient's excretion function.

What are kidney function tests?

Kidney function tests are urine or blood tests that evaluate how well your kidneys are working. Most of these tests measure glomerular filtration rate (GFR). GFR assesses how efficiently your kidneys clear waste from your system.

Blood tests for kidney function, includes:

• Blood urea nitrogen (BUN) measures nitrogen (made from protein breakdown) in your blood.
• Estimated GFR (eGFR) calculates filtration rates based on your protein levels, age, gender, size and race.
• Serum creatinine looks for the buildup of creatinine, a waste product from muscle tissue breakdown.

Urine tests for kidney function, includes:

• Microalbuminuria looks for a specific protein called albumin.
• Urinalysis evaluates your urine for blood, proteins and function.

Kidney function test results can tell you whether your kidneys are functioning typically or not. Most function tests look for two measurements:

• GFR of less than 60 could indicate kidney disease.
• Urine albumin-to-creatinine ratio (UACR) of more than 30 milligrams per gram could be a warning sign of kidney disease.

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