Renal Function Panel

Test Code

10314

CPT Codes
80069

Includes

Albumin, BUN/Creatinine Ratio (calculated), Calcium, Carbon Dioxide, Chloride, Creatinine, eGFR (calculated), Glucose, Phosphate (as Phosphorus), Potassium, Sodium, Urea Nitrogen (BUN)

Preferred Specimen

1 mL serum collected in a serum separator tube (SST)

Patient Preparation
Overnight fasting is preferred

Minimum Volume

0.5 mL

Other Acceptable Specimens

Spun SST tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Moderate to gross hemolysis • Red-top tube (no gel) unspun and not separated from cells • Unspun serum separator tube

Methodology
Ion Selective Electrode (ISE) • Spectrophotometry (SP)

Setup Schedule

Set up: Daily; Report available: 1 day

Reference Range

See individual tests

Clinical Significance

This panel is usually ordered to monitor patients with chronic kidney disease (CKD) or as part of a health examination for individuals at high risk of developing kidney diseases [1,2].

Kidney disease is more likely to develop in individuals with certain conditions, such as high blood pressure, diabetes, heart disease, and a family history of kidney disease. Early symptoms of kidney diseases are often non-specific. This panel is commonly ordered during wellness checks and emergency-room admissions when symptoms and signs are suggestive of kidney diseases [2]. National Kidney Foundation recommends a kidney profile containing estimated glomerular filtration rate and albumin-creatinine ratio for detecting and monitoring CKD [1].

The results of this test should be interpreted in the context of pertinent clinical and family history and physical examination findings.

References
1. Laboratory engagement plan: transforming kidney disease detection. National Kidney Foundation Laboratory Engagement Advisory Group. Published February 2018. Accessed January 6, 2022. https://www.ascp.org/content/docs/default-source/get-involved-pdfs/istp-ckd/laboratory-engagement-plan.pdf
2. Renal panel. Testing.com. Accessed January 6, 2022. https://www.testing.com/tests/renal-panel/

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.