Integrated 2 without NT-13689

Test info

  
Integrated 2 without NT
  
13689
  
LAB13689
  
INT2ND
  
AFP-Maternal serum
Down syndrome
  

Screening test for open neural tube defects, Down syndrome, and Trisomy 18.

Specimen

  
Serum
  
  
5 mL
  
3 mL
  
  • Serum integrated screening requires two specimens; one collected in the first trimester and one in the second trimester. This test number is for the second trimester portion of the test.
  • Collect between 15.0 and 21.9 weeks of gestation.

  • Immediatley following collection, mix sample by gently inverting 5 times
  

1. Allow sample to clot for a minimum of 30 minutes
2. Spin within two (2) hours of sample collection

Pour-off/aliquoting is not advised

  

Gold serum separator (SST) tube

  
  • Patient must have submitted a previous specimen in the first trimester for the Serum Integrated 1 test.
    • Gestational age will be based on information provided with the first trimester specimen.
  • Maternal testing clinical information form
  

Ambient (preferred) - 7 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x3

  
  • Gross hemolysis
  • Gross lipemia

Performance

  
LabCorp Burlington (017270): R-NX
  
Mo - Fr
  
5 days
  

Chemiluminescent immunoassay

Clinical and Interpretive info

  

A positive result means that diagnostic testing may be offered to the pregnant woman to determine if a neural tube defect or chromosome abnormality is present.

Billing

  
86336
84702
82105
82677
  
Yes
  

Tracking

  
06/14/2019
  
03/30/2022
  
02/21/2024