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AFP Tetra (LABCORP)
Test Code99901000283
Alias/See Also
LAB560: QUAD Screen Maternal Serum | LABCORP EAP: 017319
CPT Codes
81511x1
Preferred Specimen
LABCORP LAB: Serum Separator Tube (Room Temperature) Min Vol: 3
Other Acceptable Specimens
LABCORP LAB: YELLOW TOP: (Room Temperature) Min Vol: 3 LABCORP LAB: MICRO YELLOW: (Room Temperature) Min Vol: 3
Instructions
mL Serum (Min Vol: 3 mL - Note: This volume does not allow for repeat testing)
Container: Gel-barrier tube
Collection: 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
Container: Gel-barrier tube
Collection: 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
Transport Temperature
Storage Instructions: Room temperature
Stability Requirements:
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 14 days
Freeze/thaw cycles: Stable x3
Special Instructions: The following information must be provided: gestational age, date on which the patient was the stated gestational age, how gestational age was determined (LMP, EDD, US), patient's weight, patient's date of birth, patient's race (white, black, other), and insulin-dependent diabetic status. Also indicate relevant patient history (eg, prior neural tube defects, Down syndrome, ultrasound anomalies, or previous maternal serum screening specimen during this pregnancy). Complete information is necessary to interpret the test. Patient information may be provided to the laboratory using the Maternal Prenatal Screening requisition form 0900. Specimens must be collected before amniocentesis. Down syndrome screening is offered for gestational ages 15.0 to 21.9 weeks. Open spina bifida screening is offered for gestational ages 15.0 to 23.9 weeks. The optimal gestational age for open spina bifida screening is 16.0 to 18.9 weeks.
Stability Requirements:
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 14 days
Freeze/thaw cycles: Stable x3
Special Instructions: The following information must be provided: gestational age, date on which the patient was the stated gestational age, how gestational age was determined (LMP, EDD, US), patient's weight, patient's date of birth, patient's race (white, black, other), and insulin-dependent diabetic status. Also indicate relevant patient history (eg, prior neural tube defects, Down syndrome, ultrasound anomalies, or previous maternal serum screening specimen during this pregnancy). Complete information is necessary to interpret the test. Patient information may be provided to the laboratory using the Maternal Prenatal Screening requisition form 0900. Specimens must be collected before amniocentesis. Down syndrome screening is offered for gestational ages 15.0 to 21.9 weeks. Open spina bifida screening is offered for gestational ages 15.0 to 23.9 weeks. The optimal gestational age for open spina bifida screening is 16.0 to 18.9 weeks.
Report Available
LABCORP LAB STAT: 5 Days
Last Updated: June 30, 2023
