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Test ID: 1STT
First Trimester Maternal Screen

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Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

DOWN SYNDROME

Calculated screen risks <1/230 are reported as screen negative.

Risks > or =1/230 are reported as screen positive.

 

TRISOMY 18

Calculated screen risks <1/100 are reported as screen negative.

Risks > or =1/100 are reported as screen positive. A numeric risk for trisomy 18 risk is provided with positive results on non-diabetic, non-twin pregnancies.

 

An interpretive report will be provided.



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