LH Test

This test measures the blood level of Luteinizing Hormone (LH).

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What is an LH Test?

The LH test, also known as the Luteinizing Hormone Test, measures the blood level of LH.

Why is an LH Test important?

LH is important for ovulation in women. The LH level surges when the follicle is ready and causes release of the egg and transforms the remaining follicle into the corpus luteum to produce progesterone. The LH level is consistently high during menopause. In males, LH works in conjunction with FSH to produce testosterone. LH is useful in assessing the onset of menopause and, in conjunction with the FSH, ascertaining the hormonal profile during ovulation.

What type of specimen will I submit?

This LH Test is a blood test.

Do I need to fast to take this test?

Fasting is not necessary.

How long does it take to get test results?

It typically takes 4 business days or less.

Accesa Labs does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider for specific health concerns.

Last updated on November 9, 2017

LH Test for $59

LH Blood Test - More Information

The LH test, also known as an LH blood test, lutropin test or luteinizing hormone test, is a lab test that measures the blood level of LH. LH is a gonadotropic hormone produced by the pituitary gland that, along with FSH, influences the reproductive organs and fertility.

In women, LH plays an important role in ovarian maturation and estradiol levels. LH levels rise into ovulation and this process is thought to be due to a positive feedback mechanism from rising levels of estrogen. As LH levels surge, ovulation is triggered, after which LH levels subsequently drop. Because of this process, LH is used as an indicator that ovulation has occurred - a lab test signal that is important for anyone attempting to get pregnant. If ovulation results in a pregnancy, the placenta will produce hCG (as measurable through the traditional blood pregnancy test and LH levels will remain low.

While elevated LH levels are a normal part of the reproductive cycle, abnormally elevated levels can indicate a variety of things. Most commonly, LH levels, along with high FSH levels, are an indicator of menopause in older women. Abnormally elevated FSH levels in younger women may be an indicator of polycystic ovarian syndrome or various other uncommon conditions.

In males, LH also works with FSH to help with the manufacture of testosterone in the testicles and associated feedback mechanisms in its production. LH is also thought to be involved with the sex drive in men.

To get an LH test near you, just place your order online and get your blood drawn at the selected Quest Diagnostics lab. Once you LH lab results are available, you will be notified and can download them electronically. As can be seen on the sample LH lab test report above, the LH blood levels are reported as a number and can be compared against the reference ranges provided for luteinizing hormone by the lab. These LH ranges are typically broken out to account for different states of the menstrual cycle as well as menopause.

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How It Works
1. Order Online
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2. Visit Lab
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3. Receive Results
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