Growth Hormone
Also known as: HGH
Use
The Growth Hormone test aids in the diagnosis of growth hormone excess or deficiency disorders. It is utilized to evaluate conditions like acromegaly and growth hormone deficiency, offering a quantitative measure of growth hormone levels in the patient's blood. Accurate diagnosis helps guide treatment decisions and monitor therapy in patients with endocrine disorders related to growth hormone dysregulation.
Special Instructions
Patient must be fasting and at complete rest for 30 minutes before blood collection. It is important to follow these instructions to ensure the accuracy of test results.
Limitations
The Growth Hormone assay is standardized to the Recombinant Second International Standard (IS): 98/574, which results in readings approximately 25 percent lower than with previous standards. Reference ranges have been adjusted based on these standards. Conditions such as stress, exercise, and time of day may influence hormone levels and thus test results.
New York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
LOINC Codes
- 2963-7
- 2963-7
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
1 mL
Minimum Volume
0.4 mL
Container
Plasma separator tube or serum separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).
Collection Instructions
Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer to an ARUP Standard Transport Tube.
Patient Preparation
Patient must be fasting and at complete rest for 30 minutes before blood collection.
Causes for Rejection
Tissue or urine. Grossly hemolyzed or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours |
| Refrigerated | 1 week |
| Frozen | 2 months |