A nurse is caring for a patient who is being monitored for kidney function. Which of the following laboratory tests does the nurse expect to be ordered?

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Monitoring kidney function involves checking the levels of waste products in the blood and urine, as well as assessing how well the kidneys are filtering these wastes out of the body. Blood urea nitrogen (BUN) is a laboratory test that measures the amount of nitrogen in the blood that comes from the waste product urea. Elevated BUN levels suggest impaired kidney function. Creatinine is another laboratory test used to assess kidney function. Creatinine is a waste product that is produced by muscle metabolism and is filtered out of the blood by the kidneys. Elevated creatinine levels also suggest impaired kidney function. Hemoglobin and arterial blood gases do not provide direct indications of kidney function, while urinalysis is more useful for detecting problems with the urinary tract than assessing overall kidney function.

A Nurse Is Caring for a Patient Who Is Being