Kidney Profile with Reflex to eGFR (Creatinine-Cystatin C)

Test Code

18365

CPT Code(s)

82043, 82565, 82570

Test Code

18365

CPT Code(s)

82043, 82565, 82570

Not offered in Quest Nichols Institute - Chantilly, VA | Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano | Quest Nichols Institute -San Juan Capistrano, CA. Please provide SERVICE AREA INFORMATION to find available tests you can order.

In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Kidney Profile with Reflex to eGFR (Creatinine-Cystatin C) - This profile combines guideline-recommended tests and calculations for staging and monitoring Chronic Kidney Disease (CKD) [1]. These calculations include estimated glomerular filtration rate (eGFR) based on serum creatinine (eGFRcr), eGFR based on serum cystatin C (eGFRcys), eGFR based on combined creatinine and cystatin C (eGFRcr-cys), and urine albumin-creatinine ratio (uACR).

Renal function is assessed by measuring the rate at which the blood is cleaned of waste. This is called the "glomerular filtration rate" or "GFR". GFR can be estimated by testing for either of two substances produced ...

Test Resources

None found for this test
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Test Details

Includes

Creatinine and eGFR
Albumin, Random Urine with Creatinine

If eGFR (Creatinine) is <60 or Albumin/Creatinine Ratio, Random Urine is >29, then Cystatin C and eGFR will be performed at an additional charge (CPT code(s): 82610).

Patient Preparation

See individual tests

Methodology

See individual tests

Reference Range(s)

See Laboratory Report

LOINC® Codes, Performing Laboratory

Service Area must be determined

Includes

Creatinine and eGFR
Albumin, Random Urine with Creatinine

If eGFR (Creatinine) is <60 or Albumin/Creatinine Ratio, Random Urine is >29, then Cystatin C and eGFR will be performed at an additional charge (CPT code(s): 82610).

Patient Preparation

See individual tests

Methodology

See individual tests

Reference Range(s)

See Laboratory Report

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

3 mL serum and
10 mL random urine collected in plastic urine container

Alternative Specimen(s)

Urine collected in: Urinalysis transport tube (yellow-top, blue fill line, preservative tube)

Minimum Volume

1 mL serum • 2 mL random urine

Collection Instructions

See individual tests

Transport Container

Transport tube and Plastic urine container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria

Serum: Grossly icteric • Anticoagulants other than heparin
Urine: acid preserved tube

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

3 mL serum and
10 mL random urine collected in plastic urine container

Alternative Specimen(s)

Urine collected in: Urinalysis transport tube (yellow-top, blue fill line, preservative tube)

Minimum Volume

1 mL serum • 2 mL random urine

Collection Instructions

See individual tests

Transport Container

Transport tube and Plastic urine container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria

Serum: Grossly icteric • Anticoagulants other than heparin
Urine: acid preserved tube

Setup Schedule

Service Area must be determined

In-home collection is not available in your area through Quest Mobile.

Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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