A nurse is caring for a client in the emergency department with a diagnosis of renal calculi. Which of the following areas of the renal system do most renal calculi begin forming?

Choice A reason: The serum creatinine test measures the amount of creatinine in the blood and provides information about kidney function. Normal ranges for serum creatinine levels are 0.74 to 1.35 mg/dL for adult men and 0.59 to

1.04 mg/dL for adult women. This test is a common way to assess renal function and can indicate if the kidneys are not filtering waste effectively.

Choice B reason: While a serum creatinine test can indicate severe renal impairment, it does not diagnose a specific disease. Further testing would be required to determine the presence of a particular renal disease.

Choice C reason: The serum creatinine test does not directly show if medications are affecting kidney function. However, if a patient is on medications known to affect the kidneys, such as certain steroids, changes in creatinine levels can suggest an impact on renal function.

Choice D reason: It is part of the nurse's role to provide information about tests and procedures. Telling a patient to ask the doctor does not offer immediate support or information, which can be important for patient care and understanding.

Choice A reason: Clients with nephrotic syndrome are usually advised to decrease sodium intake to manage edema, not increase it.

Choice B reason: A kidney biopsy may be prescribed to determine the cause of nephrotic syndrome, so this statement does not indicate a need for further teaching.

Choice C reason: Swelling, particularly in the face, is a common symptom of nephrotic syndrome due to fluid retention.

Choice D reason: Losing protein in the urine is a hallmark of nephrotic syndrome, so this statement is accurate.