| Test Name: | Quad Screen, AFP |
| Epic Order Code: | LAB560 | | |
| CPT Code: | 81511 | | |
| Specimen(s) Type: | Serum, 1.0 mL | | |
| Acceptable Container(s): |   Tube tops are gold and red. |
| Testing Schedule: | Monday-Saturday |
| Turn Around Time: | STAT: NA | | |
| | Routine: 2-4 days |
| Collection Information: | Do not draw specimen after amniocentesis, as this could affect results. No special patient preparation is required. Obtain by standard collection procedures. |
| Transport Information: | Deliver to lab immediately. All specimens must be signed into the laboratory. |
| Reference Clients: | If unable to deliver to the lab within 30 minutes, centrifuge the specimen and remove serum from the red cells. Store and transport at 2-8° C within 5 days. If longer storage is required, store and transport at -20° C within 60 days. |
| Causes for Rejection: | Improperly labeled, incorrect container, contaminated, insufficient volume, incorrect/delay in transport. |
| Reference Range: | See patient report. |
| Additional Information: | For an assessment that includes neural tube defect results, gestational age must be between 15 weeks, 0 days and 22 weeks, 6 days. |
| | Assessments for Down syndrome and Trisomy 18 only are available between 14 weeks, 0 days and 22 weeks, 6 days. |