|Values are valid only on day of printing.|
Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 1 mL
1. Do not draw specimen after amniocentesis, as this could affect results.
2. Immediately spin down.
1. Draw blood between 15 weeks, 0 days and 22 weeks, 6 days.
2. Initial or repeat testing is determined in the laboratory at the time of report and will be reported accordingly. To be considered a repeat test for the patient, the testing must be within the same pregnancy and trimester, with interpretable results for the same test, and both tests are performed at Mayo Clinic.
Forms: Second Trimester Maternal Screening Alpha-Fetoprotein (AFP)/QUAD Screen Patient Information (T595) is required in Special Instructions.
Mild OK; Gross reject
Mild OK; Gross OK
|Serum||Refrigerated (preferred)||7 days|