Kidney & Liver Tests in California

What this test is

Kidney and liver tests evaluate the function and overall health of these organs by measuring specific substances in the blood. These tests can identify potential issues with kidney or liver function. They are often part of routine health check-ups or used to monitor existing conditions.

What it measures

• Blood Urea Nitrogen (BUN) — reflects kidney function
• Creatinine — indicates kidney health
• Alanine Aminotransferase (ALT) — measures liver function
• Aspartate Aminotransferase (AST) — assesses liver health
• Alkaline Phosphatase (ALP) — can indicate liver or bone issues
• Bilirubin — reflects liver function and bile duct health
• Albumin — indicates liver function and nutritional status

What the test involves

The test typically involves a standard blood draw, where a healthcare professional collects a blood sample from a vein in your arm. This sample is then analyzed in a laboratory for various markers.

Why it is often ordered

Clinicians generally order these tests to check for signs of kidney or liver damage or disease. They may also be used to monitor the progress of treatment for conditions affecting these organs.

Preparation

Preparation instructions may vary, so it is important to follow the specific guidelines provided by the collection lab. Fasting or avoiding certain medications might be required.

How results are reported

Test results are reported in terms of specific markers, with reference ranges that can vary between laboratories. Your healthcare provider will interpret these results in the context of your health.

Before you go

• Preparation instructions
• Sample collection process
• Turnaround time for results