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Test Code SS1 / 017700-LC Sequential Screen Part 1

Important Note

This series must be matched with Sequential Screen Part 2 (SSP2 / 017750-LC) to complete patient testing

PLEASE NOTE: This test may require pre-authorization or have limited coverage.  Please check with your appropriate insurance carrier to determine any specific requirements.

Additional Codes

Software Test Code
Label Text                                                SS1                                                                   
EPIC LAB20408
Integrated Genetics 017700

Performing Laboratory

Integrated Genetics (LabCorp Specialty Testing Group)

Useful For

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

Part One First Trimester Testing Includes:  PAPP-A, hCG.

Testing requires NT measurement via an ultrasound.

Method Name

Chemiluminescent Immunoassay (CIA)

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 3 mL (Serum Separator Tube (SST)) – Volume requirements are serum, not whole blood.

Minimum Volume

Serum: 2 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

Serum Part 1 testing is provided from 10.0 to 14.0 weeks of gestation.

Collect in serum separator tube with gel barrier. Allow blood to clot, avoiding hemolysis. Centrifuge SST tube, separating serum from cells. Transport spun SST tube to testing laboratory. Pouring off serum is not preferred. Maternal serum specimens must be drawn prior to amniocentesis to avoid contamination with fetal blood.

Specimen Stability Information

Specimen Type: Serum

Frozen: 14 Days

Refrigerated: 14 Days

Room Temp: 7 Days

Note: Freeze/thaw cycles: Stable x3

Add On Capable

Not Permitted

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer
81508 Ftl cgen abnor two proteins  
     

Rejection Information

Gross hemolysis, gross lipemia, quantity not sufficient for analysis, improper specimen type.