Luteinizing Hormone (LH), Three Specimens
Use
The Luteinizing Hormone (LH) test is used to evaluate reproductive health and diagnose conditions related to the pituitary gland and gonads. This test measures levels of LH, a hormone that plays a crucial role in controlling the menstrual cycle and ovulation in women, and testosterone production in men. It is important for diagnosing conditions like hypogonadism, polycystic ovary syndrome (PCOS), menopause, and pituitary disorders. By collecting and analyzing three separate specimens, the test provides a comprehensive profile of LH levels over time, which can help in understanding fluctuating hormone levels in both women and men.
Special Instructions
Please refer to the directions for sequential sampling. It is recommended to ask all patients who may be indicated for this test about biotin supplementation, as the test may exhibit interference when collected from a person consuming a high dose of biotin (vitamin B7). Patients should stop biotin consumption at least 72 hours prior to collection.
Limitations
This test may be affected by the patient's use of supplements, particularly biotin. High doses of biotin can lead to interference with the test results, causing inaccuracies in the measurement of luteinizing hormone levels. Additionally, other pre-analytical factors such as improper specimen collection, handling, or storage can potentially affect the accuracy of results. Therefore, it is crucial to follow the exact specimen collection and handling instructions to minimize potential errors.
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 32328-7
- 33827-7
- 27848-1
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided
Patient Preparation
Patients should stop biotin consumption at least 72 hours prior to collection.
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