HCG beta quant, pregnancy-690
Test info
Due to potential carryover, a test request for this assay on the Roche platform, cannot be added on to any tube which has been opened and previously run on the Roche analyzers.
Biotin supplements may cause clinically significant interference for this test assay. If interference is suspected, it is strongly recomended that biotin is discontinued for at least one week prior to retesting.
Specimen
Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times, to prevent clotting
Spin within two (2) hours of sample collection
Lt green plasma separator (PST)
EDTA plasma
Gold:
Immediately following collection, thoroughly mix sample by gently inverting 5 times
Lavender:
Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times, to prevent clotting
Gold:
- Allow sample to clot for a minimum of 30 minutes
- Spin within two (2) hours of sample collection
Lavender:
- Spin
- Transfer plasma to a False bottom plasma/serum transport vial/tube (AHL), labelled as the appropriate plasma type, within two (2) hours of sample collection
Refrigerated (preferred) - 14 days
Ambient - 5 days
Frozen - 12 months
- Improper labels (unlabeled or mislabeled)
- Hemolysis (some procedures)
- Improper anticoagulant or ratio
- Delay in transport
- Improper storage temperature affecting results
- Improper container
- Leaking container resulting in compromised specimen
- Quantity not sufficient (QNS)
Performance
Electrochemiluminescence immunoassay (ECLIA)
Clinical and Interpretive info
Non-pregnant, pre-menopausal: <5.0 mIU/mL
Post-menopausal: <8 mIU/mL
Pregnant: See report