Use the rolodex controls or search box below to find tests. You can enter a test name, CPT code, test code, or alias in the search box.
| Test Name: | Calcium, Ionized, Serum |
|---|---|
| Test Code: | 004804 |
| Other Names: | N/A |
| Test Includes: | Calcium, Ionized, Serum |
| Specimen Requirements: | Serum, 1 mL |
| Container: | Gel-barrier tube |
| Collection Instructions: | Centrifuge and send unopened gel-barrier tube with vacuum intact. It is critical that the vacuum not be disrupted. Exposure of the serum to room air causes a loss of carbon dioxide to the atmosphere. This changes the sample pH and can prevent the lab from measuring the ionized calcium. To ensure that testing can be performed, send a separate tube for ionized calcium and adhere a piece of labeling tape over the top of the tube with the following written on it "IONIZED CALCIUM-DO NOT OPEN." |
| Stability: | Do NOT freeze. |
| Rejection Criteria / Special Instructions: | Centrifuge and send unopened gel-barrier tube with vacuum intact. It is critical that the vacuum not be disrupted. Exposure of the serum to room air causes a loss of carbon dioxide to the atmosphere. This changes the sample pH and can prevent the lab fro |
| Methodology: | Ion-selective electrode (ISE) |