Casandra
Casandra Test Code QD95214Version 1 (DRAFT)
Performing Lab
Steroid Panel, 21‑Hydroxylase Deficiency/Stress
Clinical Use
Order TestUse
This panel is of value in pediatric patients to differentiate between congenital adrenal hyperplasia (21‑hydroxylase deficiency) and acute stress due to other causes.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Mass Spectrometry
Biomarkers
17‑Hydroxyprogesterone
AnalyteConcentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Androstenedione
AnalyteConcentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Cortisol
AnalyteConcentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
3-4 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.25 mL
Container
red‑top tube (no gel)
Collection Instructions
Collect specimen in a non additive red top tube; spin down immediately and pour off into a 13x75 plastic transport tube.
Causes for Rejection
Gross hemolysis • Moderate hemolysis • Grossly lipemic • Gross icterus • Serum separator tube (SST)
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Room temperature: 72 hours |
| Refrigerated | Refrigerated: 7 days |
| Frozen | Frozen: 30 days |