Test directory: AFP Maternal, Screen

Ordering Code241
Test NameAFP Maternal, Screen
AliasMSAFP
Preferred SpecimenSerum
Preferred ContainerSST (Gold)
Other Specimen/ContainerSerum in Plain (Red)
Optimum Volume2 mL
Collection InstructionsPatient should be between 15 - 20 weeks gestation.
Transport RequirementsOahu: Refrigerated
Airline: Frozen
Specimen StabilityAmbient: 8 Hours
Refrigerated: 2 Days
Frozen: 6 Months
Frozen samples should be thawed only once. DO NOT use frost-free freezers.
Rejection CriteriaSpecimen older than stability limits, Grossly hemolyzed,
Insufficient quantity
Avail. StatNO
Analytic Time1 Day
MethodologyChemiluminescence

Reference range(s)

The reference ranges listed below are valid on this date of April 19, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Gestational AgeALLWks.See report.
G.A. Based OnALLSee report.
Age At TermALLYrs.See report.
WeightALLlbs.See report.
RaceALLSee report.
GestationALLSee report.
Insulin Dependent DiabeticALLSee report.
Smoking StatusALLSee report.
Repeat testALLSee report.
FH of NTDALLSee report.
FH of Down SyndromeALLSee report.
AFPALLng/mLSee report.
MOMALL<2.5
Down Syndrome Risk AssessmentALLSee report.
Down Syndrome Age RiskALL<1:365
Down Syndrome Screen RiskALL<1:365
NTD Risk AssessmentALLSee report.
NTD Screen RiskALL<1:484
InterpretationALLSee report.