FMSI2 - Specimen: Maternal Serum Screening, Integrated, Specimen #2

Test Catalog

Test Name

Test ID: FMSI2    
Maternal Serum Screening, Integrated, Specimen #2

Specimen Type Describes the specimen type validated for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Specimen must be drawn between 15 weeks, 0 days and 24 weeks, 6 days gestation (based on the CRL). Acceptable date ranges to draw the second samples will be provided in the Integrated-1 report.


Draw blood in a plain red-top tube(s), serum gel tube is acceptable. Spin down and send 3 mL of serum refrigerated in a plastic vial.


Separate from cells ASAP or within 2 hours of collection.


This test requires a previously submitted first trimester specimen, Maternal Screening, Integrated, Specimen #1 (ARUP test code 0081062).


Required to accompany all specimens (testing will not proceed until all requirements are met):

1.     Completed Maternal Serum Screen, Integrated Test Request Form

2.     See Special Instructions for a copy of the form

Specimen Minimum Volume The amount of sample necessary to provide a clinically relevant result as determined by the Laboratory.

1 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild reject; Gross reject


Cold reject; Warm reject







Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperatures are also included.

Specimen TypeTemperatureTime
SerumRefrigerated (preferred)7 days
 Frozen 365 days
 Ambient 24 hours