Test ID: QUAD
Quad Screen (Second Trimester) Maternal, Serum
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.
NEURAL TUBE DEFECTS
An AFP multiple of the median (MoM) <2.5 is reported as screen negative. AFP MoMs > or =2.5 (singleton and twin pregnancies) are reported as screen positive.
Calculated screen risks <1/270 are reported as screen negative, risks > or =1/270 are reported as screen positive.
Calculated screen risks <1/100 are reported as screen negative, risks > or =1/100 are reported as screen positive.
An interpretive report will be provided.