Laboratory Medicine
Test Directory / Luteinizing Hormone
Luteinizing Hormone
Brown clotted serum, gel barrier
| Test | Luteinizing Hormone |
|---|---|
| Common Abbreviations | LH |
| Profile | NA |
| Tube type | Brown clotted serum, gel barrier |
| Clinical Indication | LH is often used in conjunction with other tests (FSH, testosterone, oestradiol, and progesterone) in the investigation of infertility in both men and women. LH levels are also useful in the investigation of menstrual irregularities in women and low testosterone levels in men. Measurement may also aid in the diagnosis of pituitary gland disorders. In children, FSH and LH are used to diagnose delayed or precocious (early) puberty and investigate problems with growth. |
| Specimen Type | Blood |
| Sample type | Serum |
| Minimum Volume | 0.5mL If requesting more than 10 tests please send an additional brown clotted serum sample. |
| Special Precautions | No special requirements |
| Stability | 5 days at 20 - 25°C, 14 days at 2 - 8°C and 6 months at -20°C |
| Turnaround Time | Inpatient: 24 hours Outpatient/ GP: 24 hours |
| Laboratory | York and Scarborough |
| Reference Interval | Females: Follicular: 2.4 - 12.6 IU/L Ovulation: 14.0 - 95.6 IU/L Luteal: 1.0 - 11.4 IU/L Post-menopausal: 7.7 - 58.5 IU/L Males: 1.7 - 8.6 IU/L (Quoted by the manufacturer) |
| Limitations | In rare cases, interference due to extremely high titres of antibodies to analyte?specific antibodies, streptavidin or ruthenium can occur. These effects are minimized by suitable test design. |
| Notes |
