Luteinizing Hormone (LH) CPT: 83002
Interstitial Cell-stimulating Hormone
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.
Expected Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
0.3 mL (Note: This volume does not allow for repeat testing.)
Red-top tube or gel-barrier tube.
If a red-top tube is used, transfer separated serum to a plastic transport tube.
To evaluate fertility issues, function of reproductive organs (ovaries or testicles), or to detect the release of an egg from the ovary (ovulation); to evaluate pituitary function. In children, to evaluate early or delayed sexual maturation (puberty).
For women, when you are having difficulty getting pregnant or are having irregular or heavy menstrual periods; when you are tracking ovulation during your menstrual cycle
For men, when your partner cannot get pregnant or you have a low sperm count, low muscle mass or decreased sex drive
When your healthcare provider thinks that you have symptoms of a pituitary disorder or hypothalamic disorder
When a healthcare practitioner suspects that a child has delayed or earlier than expected sexual maturation
A blood sample drawn from a vein in your arm; sometimes a random urine sample or a 24-hour urine collection may be taken.
None, but the timing of a woman’s sample will be correlated with her menstrual cycle.