Casandra
Casandra Test Code QD77194Version 1 (DRAFT)
Performing Lab
Lab Quest DiagnosticsLab Test ID 16145
First Trimester Screen, hCG
Also known as: Human Chorionic Gonadotropin (hCG), Nuchal Translucency (NT), Down Syndrome, Trisomy 18 Screen, MSS
Clinical Use
Order TestUse
This test is used for first‑trimester screening of fetal aneuploidy—specifically for Down syndrome (trisomy 21) and trisomy 18—by combining biochemical markers with nuchal translucency measurement to assess risk.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Immunoassay (Multiplex Protein Panel)
Biomarkers
hCG
AnalytehCG
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
PAPP-A
AnalytePAPP-A
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
0 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided
Similar Tests
Other tests from different labs that may be relevant
Maternal Serum Screen, First Trimester, hCG, PAPP-A, NT
ARUP Laboratories
Maternal Screening, Sequential, Specimen #1, hCG, PAPP-A, NT
ARUP Laboratories
Sequential 1
Labcorp
First Trimester Screen With Nuchal Translucency
Labcorp
Maternal Screening, Sequential, Specimen #2, Alpha Fetoprotein, hCG, Estriol, and Inhibin A
ARUP Laboratories
Sequential 2
Labcorp
Serum Integrated 2
Labcorp
Maternal Serum Screening, Integrated, Specimen #1, PAPP-A, NT
ARUP Laboratories
Maternal Serum Screening, Integrated, Specimen #2, Alpha Fetoprotein, hCG, Estriol, and Inhibin A
ARUP Laboratories
Integrated 1
Labcorp