Quad Scrn (2nd Tri) Maternal Serum
General Information
HLAB/HOL Code: QUAD1
UPHSM LIS Test #: 026634
Schedule:
Testing Time:
Testing Lab: Mayo
UPHSM LIS Test #: 026634
Schedule:
Testing Time:
Testing Lab: Mayo
Specimen Info
Only 1 specimen type required, unless otherwise specified
Volume: 1.0 mL
Temperature: Refrigerated
Tube Type: Serum
Collection Info:
Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Collection Instructions:
1. Do not collect specimen after amniocentesis as this could affect results.
2. Centrifuge immediately
Additional Information:
1. For an assessment that includes neural tube defect results, gestational age must be between 15 weeks, 0 days and 22 weeks, 6 days.
2. Assessments for trisomy 21 (Down syndrome) and trisomy 18 (Edwards syndrome) only are available between 14 weeks, 0 days and 22 weeks, 6 days.
3. 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 tests, and both tests are performed at Mayo Clinic.
Temperature: Refrigerated
Tube Type: Serum
Collection Info:
Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Collection Instructions:
1. Do not collect specimen after amniocentesis as this could affect results.
2. Centrifuge immediately
Additional Information:
1. For an assessment that includes neural tube defect results, gestational age must be between 15 weeks, 0 days and 22 weeks, 6 days.
2. Assessments for trisomy 21 (Down syndrome) and trisomy 18 (Edwards syndrome) only are available between 14 weeks, 0 days and 22 weeks, 6 days.
3. 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 tests, and both tests are performed at Mayo Clinic.
Specimen Acceptability
REJECT DUE TO:
Gross hemolysis: Reject
Gross lipemia: OK
Gross icterus: OK
Gross hemolysis: Reject
Gross lipemia: OK
Gross icterus: OK
Methods
Immunoenzymatic Assay
Clinical Utilities
Prenatal screening for open neural tube defect (alpha-fetoprotein only), trisomy 21 (alpha-fetoprotein, human chorionic gonadotropin, estriol, and inhibin A) and trisomy 18 (alpha-fetoprotein, human chorionic gonadotropin, and estriol)
CPT Codes
81511
* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
