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Trusted-source health topic

Kidney Health

The kidneys filter blood, regulate fluid and electrolytes, and remove waste products.

Why is this important?

Understanding the purpose and limits of laboratory information can support a more informed conversation with a qualified healthcare professional.

How laboratory testing relates

Blood creatinine and an estimated filtration measure, together with urine albumin testing, can contribute to kidney assessment. Trends and clinical context are important.

Before testing

Preparation is test-specific. Follow the instructions given for the exact test and contact the laboratory if fasting, timing, medicines, or specimen collection is unclear. Do not stop medicines unless a qualified professional tells you to.

Educationally related laboratory guides

These links explain related laboratory records. They are not recommendations to request or purchase a test.

CreatinineMicroalbumin - Quantitative (Random Urine)Urea/ Blood Urea Nitrogen (BUN)

Sources & further reading

  • National Institute of Diabetes and Digestive and Kidney Diseases: Chronic Kidney Disease Tests & Diagnosis

    External authoritative patient reference · Verified 2026-08-10

Educational information only. This page does not diagnose a condition, recommend a test or treatment, or replace advice from a qualified healthcare professional. Contact the laboratory to confirm current test availability, preparation, specimen requirements, and completion information.
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