Phosphorus
| Abbrev Code: | PHOS | ||
| Order Code: | LAB113 | Order Name: | Phosphorus |
| Synonyms: | PO4; Phosphate | ||
| Methodology: | Roche: Molybdate UV
Vista: Bichromatic endpoint Woodwinds: Phosphomolybdate UV |
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| CPT Codes: | 84100 x1, 84100 x1 | ||
| Turnaround Time: | Performed and reported 24 hours/day. | ||
| Associated Links: | |||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2.5 mL |
| Minimum\Peds Volume: | 0.6 mL |
| Collection Instructions: | Chemistry Tests Containers Chart |
| Causes for Rejection: | Hemolysis |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 1.25 mL, 0.1 mL minimum within 2 hours to avoid falsely high PO4 values. Separate from red cells promptly because erythrocytes contain phosphate concentrations several times greater than those in serum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Stability: | Roche: 4 days refrigerated; 1 year frozen.
Vista: Several days refrigerated; several months frozen. |
| Test Performed at or Referral Lab | Chemistry (CSC Maple Grove, Roche-CSC Mpls, Roche-Grand Itasca, Roche-Lakes, Roche-Northland, Roche-Range, Roche-Ridges, Roche-Southdale, Roche-St. John's, Roche-UMMC East, Roche-UMMC West, Woodwinds) |
Interpretive
| Critical Range: | Basic, Electrolyte and Renal Panels Critical Values and Reference Ranges |
| Reference Range: | Basic, Electrolyte and Renal Panels Critical Values and Reference Ranges |
| Use: | Evaluate phosphorus metabolism. |
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