Casandra
Casandra Test Code QD46865Version 1 (DRAFT)
Performing Lab
Glucose Tolerance Test, 2 Specimens (75 g)
Clinical Use
Order TestUse
This test is used for the routine diagnosis of diabetes in children and the non‑pregnant adult. For pregnant females, a different test (Gestational 4 specimens) is indicated. The patient must fast overnight and ingest a 75 g glucose load; a fasting specimen is obtained immediately and a second specimen 2 hours post-load. Diabetes is diagnosed if the fasting glucose is ≥ 126 mg/dL or the 2‑hour specimen is ≥ 200 mg/dL.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
Glucose, 2‑hour post‑load
Analyte2‑hour glucose
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Glucose, fasting
AnalyteFasting glucose
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Plasma
Volume
1 mL
Minimum Volume
0.5 mL
Container
fluoride/oxalate (gray‑top) tube
Causes for Rejection
Unspun serum separator tubes, red‑top or non‑plasma separator green‑top tubes, other anticoagulants
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 28 days |
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