Integrated Second Sample Screen - Iowa Maternal Screening
Commercial Mail-out Laboratory
Collect between 15 weeks-20 weeks 6 days.
Provide patient weight (kg), race, and number of fetuses. Also note if
the patient is taking insulin for diabetes and whether the patient or
her partner had a neural tube defect (NTD) or if either has had a
previous pregnancy with a NTD.
Refrigerate specimen if not transported within 24 hours of collection
to reference laboratory.
|Red top tube 5 mL (Clot Activator)
3 mL whole blood in Red Top Tube or 1 mL serum
Plasma or specimen older than 9 days. Sample not collected within the
required gestational age range.
Deliver to laboratory after collection.
3-5 days upon receipt at reference laboratory
By report - AFP, hCG, Estriol, Inhibin A from this sample, and PAPP-A
from previous sample, calculated Multiples of the Median (MoMs) based
on gestational age.
This test is the second sample of a two-part test. Testing requires
that collection of Integrated First Sample Screen - Iowa Maternal
Screening, LAB8338, was submitted in the 1st trimester. Screening test
for DS, T18, and open NTD determined using a combination of 1st and 2nd
trimester markers with or without a 1st trimester nuchal translucency
This test cannot be performed on multiples.
Quantitative Chemiluminescent Immunoassay
82105, 84702, 82677, 86336, 84163