| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Penta Screen
Test Code15934
CPT Codes
81512<br /> This code is for non-New York clients only. For New York patient testing, use code 16970.
Includes
AFP, unconjugated Estriol, hCG, Dimeric Inhibin A, ITA (hyperglycosylated hCG) and Maternal Risk Interpretation
Preferred Specimen
4 mL serum
Minimum Volume
1.5 mL
Instructions
The risk assessment cannot be performed unless demographic data are provided by the ordering physician.
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 28 days
Refrigerated: 14 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Gross lipemia
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: 3-5 days
Limitations
Penta Screen results consistent with an increased risk of trisomy should be confirmed with amniotic fluid specimen. Results consistent with increased risk of NTD may be followed-up with appropriate diagnostic testing as detailed in the report. Maternal serum screening yields a low percentage of false negatives. A wide range of other chromosomal abnormalities are not identified by maternal serum screening.
Reference Range
See Laboratory Report
Clinical Significance
To screen a woman in her second trimester of pregnancy for Neural Tube Defects, Down Syndrome and Trisomy 18 at 9 to 13 weeks gestation.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |
