| Ordering Code | 294 |
|---|---|
| Test Name | LH |
| Alias | Luteinizing Hormone ** Note: STAT for approved fertility physicians only ** |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Serum in Plain (Red), Plasma in Lithium Heparin (Green-PST), Plasma in Lithium Heparin (Dark Green-PP No Gel) |
| Optimum Volume | 1 mL |
| Collection Instructions | Note: STAT for approved fertility physicians only. |
| Handling Instructions | All specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection Keep tubes stoppered at all times. |
| Transport Requirements | Oahu: Refrigerated Airline: Refrigerated |
| Specimen Stability | Ambient: 8 Hours Refrigerated: 48 Hours Frozen: 6 Months Frozen samples should be thawed only once DO NOT use frost-free freezers. |
| Rejection Criteria | Insufficient quantity, Specimen older than stability limits, Wrong specimen type |
| Avail. Stat | NO |
| Analytic Time | 1 Day |
| Methodology | Chemiluminescent Immunoassay - Two-step Sandwich |
Reference range(s)
The reference ranges listed below are valid on this date of July 15, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| LH | ALL | 1.2-8.6 | mIU/mL | ... Note1 |
Note1:
Males: = 1.2-8.6 mIU/mL
Females:
Mid-Follicular = 2.1-10.9 mIU/mL
Mid Cycle: = 19.2-103.0 mIU/mL
Mid-Luteal: = 1.2-12.9 mIU/mL
Postmenopause: = 10.9-58.6 mIU/mL
.