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Test ID: 1STT
First Trimester Maternal Screen

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Secondary ID A test code used for billing and in test definitions created prior to November 2011

87857

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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