hCG, Serum/Plasma, Quantitative (Pregnancy Test) (plus Beta Subunit at Roche sites only
| Abbrev Code: | HCGQNT | ||
| Order Code: | LAB143 | Order Name: | HCG Quantitative Pregnancy |
| Synonyms: | Chorionic Gonadotropin; Beta HCG; SPT | ||
| Methodology: | Roche: Electrochemiluminescence immunoassay (ECLIA) | ||
| CPT Codes: | 84702 x1, 84702 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 |
| Contraindications: | Large doses of biotin (10 mg or more per day) may cause clinically significant interference in hCG levels. If interference is suspected, it is strongly recommended that biotin is discontinued for at least one week prior to retesting. |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Stability: | Roche: 3 days refrigerated; 12 months frozen. Freeze once only. |
| Test Performed at or Referral Lab | Chemistry (Roche-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
| Reference Range: |
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| Use: | To diagnose pregnancy. The assay measures both intact hCG and free beta subunits. |
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