- Patient/Guest
- Phlebotomist
- Updates
| Quad Test | - |
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Assess fetal aneuploidy risk |
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Synonym | See updates |
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Test Code | CDBIOPR0040 |
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Test Type | Biochemistry |
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Pre-Test Condition | See updates |
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Report Availability | 3 D(s) |
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# Test(s) | Multiple |
| Test details | Sample Report |
|---|---|
| Quad Test |
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Synonym | See updates | |
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Test Code | CDBIOPR0040 | |
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Test Category | Fetal aneuploidy | |
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Pre-Test Condition | See updates | |
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Medical History | See updates | |
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Report Availability | 3 D(s) | |
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Specimen/Sample | Serum; 2 mL; SST | |
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Stability @21-26 deg. C | 6 Hr(s) | |
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Stability @ 2-8 deg. C | 7 D(s) | |
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Stability @ Frozen | 1 M(s) | |
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# Test(s) | Multiple | |
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Processing Method | Immunoassay | |
| **Quadruple Test****FDA Status**: FDA-approved for prenatal screening.**Other Names**: Quad Screen, Maternal Serum Quad Test.**Historical Breakthrough**: Developed in the 1990s for prenatal risk assessment, advancing obstetrics.**Key Purpose and Impact**: Measures AFP, hCG, estriol, and inhibin-A to assess risk of Down syndrome or neural tube defects.**Preparation and Patient History**: Blood; report pregnancy history or family history.**Consent Requirement**: Standard consent with prenatal counseling.**Clinical Value**: Sensitivity ~95%; specificity ~95%; detects abnormalities in ~85% of cases; guides further testing.**References Cited**: Testing.com Prenatal Tests 2023; Labcorp Quad Test 2025; UpToDate Prenatal Screening 2025 |