Electrolyte Panel (Carbon Dioxide, Chloride, Potassium, Sodium)
Albumin, Random Urine with Creatinine
Creatinine, Serum
Hemoglobin
PTH, Intact and Calcium
Phosphate (as Phosphorus)
Vitamin D, 25-Hydroxy, Total, Immunoassay
See individual tests
Specimen requirements | |
|---|---|
| Patient preparation | Patient should fast 9-12 hours prior to collection |
| Preferred specimen(s) | 3 mL serum and Whole blood collected in one full EDTA (lavender-top) tube and 1.5 mL plasma collected for PTH, Intact in an EDTA (lavender-top) tube and 10 mL random urine - no preservative |
| Alternative specimen(s) | 2 mL (1 mL minimum) frozen serum for PTH, Intact • Whole blood from a full EDTA (tan-top) tube |
| Minimum volume | 1 mL serum • 1 mL whole blood collected in an EDTA (lavender-top) tube or 0.5 mL whole blood collected in a Microtainer EDTA tube • 1 mL plasma • 2 mL random urine |
| Collection instructions | Whole blood: Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender-top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets. Refrigeration can precipitate fibrin and trap WBC and platelets. Plasma: Centrifuge and transfer EDTA plasma to a transport tube. Label as PLASMA for the PTH, Intact. Note: If drawn with lead testing, EDTA (tan-top) is required. |
| Transport temperature | See individual tests |
| Specimen stability | Serum for Electrolytes, Phosphorus and Creatinine Room temperature: 48 hours Refrigerated: 72 hours Frozen: 28 days Serum for 25OH-Vit D Room temperature: 7 days Refrigerated: 7 days Frozen: 28 days Serum for Calcium Room temperature: 7 days Refrigerated: 7 days Frozen: 28 days Whole blood Room temperature: 48 hours Refrigerated: 48 hours (may cause platelet clumping) Frozen: Unstable EDTA plasma for PTH, Intact Room temperature: 48 hours Refrigerated: 72 hours Frozen: 24 hours Serum for PTH, Intact Room temperature: Unacceptable Refrigerated: Unacceptable Frozen: 28 days Random urine Room temperature: 7 days Refrigerated: 7 days Frozen 28 days |
| Reject criteria | See individual tests |
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.
The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.