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General Information:

 

Top 3 Reference Laboratory Test Catalogs for Miscellaneous Lab Test Orders:

 

Specimen Collection Information:

Reference Intervals:

System-Wide MaineHealth Laboratory Reference Intervals (Common tests only)

 

Critical Values:

System-Wide MaineHealth Laboratory Critical Values

Mayo Clinic Laboratories

Test Code AFP1 / 017500-LC FIRST TRIMESTER SCREEN W/NT

Important 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
SCC AFP1
EPIC LAB20506
LabCorp 017500

 

Performing Laboratory

Integrated Genetics via LabCorp

Useful For

Screening test in the first trimester of pregnancy for fetal Down syndrome and trisomy 18

Test Includes: Dimeric inhibin A (DIA); hCG; pregnancy-associated plasma protein A (PAPP-A)

Specimen Type

3 mL serum form Yellow top gel barrier tube

Specimen Collection and Handling

Collect in serum separator tube with gel barrier. Allow blood to clot, avoiding hemolysis. Separate serum from cells by centrifugation. Transport spun tube to testing laboratory.

Pour-off is not advised. Maternal serum specimens must be drawn prior to amniocentesis to avoid contamination with fetal blood.

Store at room temperature

CPT Code Information

CPT Code CPT Code Description CPT Code Disclaimer
81509 Ftl cgen abnor 3 proteins  

 

Additional Notes and Limitations

Screening test for Down syndrome and trisomy 18. A positive result means that diagnostic testing may be offered to the pregnant woman to determine if a chromosome abnormality is present. This test does not screen for open neural tube defects.