ARUP's Laboratory Test Directory
| 0070256: Proinsulin/Insulin Ratio |
| Test Mnemonic: PRO INS | |
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Methodology: Refer to individual components
Performed: Refer to individual components Reported: Refer to individual components |
| Specimen Required: | |
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Collect: One 4 mL SST. Also acceptable: lavender (EDTA) or pink (K2EDTA).
Transport: 1 mL serum or plasma, frozen. (Min: 0.8 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.5 mL serum or plasma frozen. Remarks: Patient must fast 12-15 hours before collection. Separate serum from cells ASAP and freeze. Avoid repeated freeze/thaw cycles. Unacceptable Conditions: Heparinized plasma. Stability: After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 3 months |
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| Reference Interval: |
| Interpretive Data: | |
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To convert to pmol/L, multiply by 6.0.
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| CPT Code(s): | |
| 84206 Proinsulin; 83525 Insulin |