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Immunoassay for Renal Function Biomarker Profile (Confirmative) with Serum/Plasma

Published: August 9, 2026Updated: August 17, 2026

This test measures several substances in your blood that help assess how well your kidneys are functioning. It includes confirmation of specific markers related to kidney health.

Quick summary

["This test helps doctors evaluate kidney function and identify potential issues early."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
74393-0
Short code
Imm Retics/RBC NFr BldCo Auto
Synonyms
Imm Retics/RBC NFr BldCo Auto
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
4.2
Ref high
5.9
Critical range
2 N/A – 7 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
automated-count
CPT
85041
SNOMED
900000000000003001
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

Your blood sample will be tested for a panel of biomarkers that reflect kidney function, including proteins and substances that may indicate kidney damage, fluid balance, or other renal conditions. The test uses immunoassay methods to detect these analytes with high sensitivity. Some tests may also measure electrolytes indirectly through related markers.

Why This Test Might Be Ordered

A doctor may recommend this test if you have symptoms like swelling, fatigue, frequent urination, or if they suspect kidney problems. It’s also used in routine check-ups for high-risk patients (e.g., those with diabetes, hypertension, or a family history of kidney disease).

Sample Collection and Preparation

You’ll provide a blood sample, usually drawn from a vein in your arm. The sample is processed to separate serum or plasma for testing. No special preparation is needed, but fasting may be required for some related tests within this panel.

Test Results and Interpretation

Results are compared to standard ranges for your age, sex, and health status. Abnormal levels may signal kidney issues, infections, or other health concerns. Your doctor will discuss findings with you.

Reference range

Adult males: 4.2-5.9; Females: 3.8-5.1 x 10^12/LN/A

Specimen: whole-blood

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This confirmatory panel helps diagnose or monitor kidney disease, track progression of conditions like chronic kidney disease, or guide treatment decisions. Elevated or low levels of certain biomarkers can indicate kidney strain, fluid retention, or metabolic imbalances that require medical attention.

Short name

Renal Function Biomarker Panel (Confirm)

Frequently asked questions

What does a positive or abnormal result mean?
An abnormal result doesn’t always mean you have a problem, but it may signal the need for further testing or lifestyle changes. Your doctor will explain what the results mean in the context of your health history.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Follow-up with your healthcare provider is important to discuss any findings.
Can I eat or drink before this test?
Some tests in this panel may require fasting; check with your doctor or lab for specific instructions. Generally, avoid heavy meals or alcohol before blood collection.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy