Maternal Screening, Sequential, Specimen #1, hCG, PAPP-A, NT MSCR1
|Method(s)||Quantitative Chemiluminescent Immunoassay|
One 5 mL gold (SST) or plain red top tube.
Separate from cells ASAP or within 2 hours of collection. Transfer 3 mL serum refrigerated to an ARUP Standard Transport Tube. (Min: 1 mL)
Submit with Order: Patient's date of birth, current weight, number of fetuses present, patient's race, if the patient was diabetic at the time of conception, if there is a known family history of neural tube defects, if the patient has had a previous pregnancy with a trisomy, if the patient is currently smoking, if the patient is taking valproic acid or carbamazepine (Tegretol), if this is a repeat sample, and the age of the egg donor if in vitro fertilization.
|Notes||See attached required requisition and patient consent. Patient Prep: Specimen must be drawn between 11 weeks, 0 days and 13 weeks, 6 days. (Crown-Rump length (CRL) must be between 43-83.9 mm at time of specimen collection.)|
|Preferred Specimen Collection Device(s)|