Integrated First Sample Screen - Iowa Maternal Screening
Label Mnemonic: IFIMS
Epic Lab Code: LAB8338
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Specimen Instructions:
Collect when ultrasound crown rump length (CRL) is 32-80 mm at 10 weeks - 13 weeks 6 days.

Patient weight (kg), race, ultrasound date, CRL (mm) and nuchal translucency (NT) measurement (mm) at time of ultrasound and sonographer name required. Nuchal translucency (NT) measurement (mm) at time of ultrasound preferred but not required. 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. If IVF pregnancy, the age of the egg donor is required.

Refrigerate specimen if not transported within 24 hours of collection to referral testing laboratory.
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
3 mL whole blood in Red Top Tube or 1 mL serum
Rejection Criteria:
Plasma or specimen older than 9 days. Sample not collected within the required gestational age range.
Delivery Instructions:
Deliver to laboratory after collection.
Turn Around Time:
3-5 days upon receipt at reference laboratory
Reference Range:
Not Applicable. No interpretive report issued.
Comments:
This test is the first sample of a two-part test. Results require collection of a second sample between 15 and 20 weeks 6 days gestation. For second sample, order Integrated Second Sample Screen - Iowa Maternal Screening; LAB8339. When testing on the second sample is completed, a final interpretive repot will be issued.

This test cannot be performed on multiples.

CPT Codes:
Charges are associated when the Integrated Second Sample Screen - Iowa Maternal Screening (LAB8339) is reported.
Methodology:
Quantitative Chemiluminescent Immunoassay