Test Code Corticotrophin Releasing Factor Corticotrophin Releasing Factor
Methodology
Direct Immunoassay
Specimen Requirements
Fasting 10-12 Hours required. Patient must be off of Corticosteroids, ACTH or Estrogen for at least 48 hr prior to collection if possible. An AM specimen is preferred.
2 Lavender Top EDTA Tubes (3 mL plasma) Plasma should be collected and separated as soon as possible. Freeze specimen immediately after separation.
Minimum specimen size is 1mL
Special Specimens
For tumor/tissue and various fluids (i.e. CSF, peritoneal,
synovial, etc.), contact the Institute for requirements and special
handling.
Day(s) Test Set Up
Once a week
Turn Around Time (TAT) - 7-18 days
Performing Laboratory
Sent out to Mayo Medical Lab who then sends it to Interscience Institute
Specimen Transport Temperature
- Frozen