Luetinizing Hormone Ultra (LH). 3rd Gen.
Order Name
ULTRA LH
Test Number: 3601775
Revision Date 08/13/2007
Test Number: 3601775
Revision Date 08/13/2007
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Luetinizing Hormone Ultra (LH). 3rd Gen.
|
Immunochemiluminometric (ICMA) |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Serum | Clot Activator SST | Frozen |
| Alternate 1 | 1 mL (0.5) | Plasma | EDTA (Lavender Top) | Frozen |
| Alternate 2 | 1 mL (0.5) | Plasma | Sodium Heparin (Green Top / No-Gel) | Frozen |
| Instructions | Separate serum or plasma and freeze in plastic pour off vial within one hour of collection! | |||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon-Sat |
| Expected TAT | 3-4 Days |
| Clinical Use | Luteinizing hormone (LH, lutropin) is produced by the anterior pituitary gland. Production is regulated by hypothalamic gonadotropin releasing hormone (GnRH). LH stimulates ovulation and ovarian steroid hormone production in the female and testosterone secretion by the testes in the males. GnRH and LH secretion are regulated by negative feedback systems, whereby reduced levels of gonadal hormone stimulate and increased levels inhibit circulating LH concentrations. LH levels are useful in assessing disorders of gonadal function. GnRH stimulation of LH is a useful provocative test in selected patients with delayed puberty and in confirming pituitary hypofunction in secondary hypogonadism. |
| CPT Code(s) | 83002 |
| Lab Section | Reference Lab |