Melanocyte Stimulation Hormone, Alpha (a-MSH)
Also known as: MSH ALPHA
Use
The test measures the level of alpha-Melanocyte Stimulation Hormone (a-MSH), a peptide hormone involved in regulating pigmentation and influencing several physiological systems, including energy homeostasis, food intake, and sexual function. Abnormal levels may be associated with clinical conditions such as Addison's disease, Cushing's syndrome, and secondary hypertension, contributing to diagnostic and treatment decisions.
Special Instructions
Discontinue steroids, ACTH, or hypertension medication, if possible, for at least 48 hours prior to collection. A morning fasting specimen is preferred. It's essential that the specimen is separated from cells ASAP or within 2 hours of collection and transferred to an appropriate transport tube before freezing immediately.
Limitations
The test results cannot be used interchangeably with those obtained from different methods, laboratories, or kits. This test has not been cleared or approved by the US FDA, and the results cannot be interpreted as definitive evidence of the absence or presence of malignant disease.
New York Approved
Methodology
Immunoassay (RIA)
Biomarkers
LOINC Codes
- 1820-0
Result Turnaround Time
15-20 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
3 mL
Minimum Volume
1 mL
Container
Lavender (K2 or K3EDTA) or pink (K2EDTA)
Collection Instructions
Separate from cells ASAP or within 2 hours of collection. Transfer to an ARUP standard transport tube and freeze immediately.
Patient Preparation
Discontinue steroid, ACTH, or hypertension medication, if possible, for at least 48 hours prior to collection. A morning fasting specimen is preferred.
Storage Instructions
CRITICAL FROZEN.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 24 hours |
| Frozen | 1 month |