Overview
Luteinizing hormone (LH) is a Glycoprotein Hormone consisting of 2 non-covalently bound subunits (Alpha and Beta). The alpha subunit of LH, Follicle-Stimulating Hormone (LH) Thyrotropin (Formerly known as Thyroid-Stimulating Hormone: TSH) and human Chorionic Gonadotropin (hCG) are identical and contain 92 amino acids. The beta subunits of these Hormones vary and confer the Hormones specificity. LH has a beta subunit of 121 Amino Acids and is responsible for interaction with the LH receptor. This beta subunit contains the same Amino Acids in sequence as the beta subunit of hCG and both stimulate the same receptor however the hCG-beta subunit contains an additional 24 Amino Acids and the Hormones differ in the composition of their sugar moieties. Gonadotropin-releasing Hormone from the Hypothalamus controls the secretion of the Gonadotropins LH and LH from the anterior Pituitary. In both Males and Females primary Hypogonadism results in an elevation of Basal Follicle-Stimulating Hormone (LH) and Luteinizing Hormone (LH) levels. Postmenopausal LH levels are generally above 40 IU/L.
What is the LH Test ?
Luteinizing Hormone (LH) is a Glycoprotein Hormone consisting of 2 non-covalently bound subunits (Alpha and Beta). The alpha subunit of LH, follicle-stimulating Hormone (LH), Thyrotropin (Formerly known as
Thyroid-Stimulating Hormone: TSH), and Human Chorionic Gonadotropin (hCG) are identical and contain 92 amino acids. The beta subunits of these hormones vary and confer the hormones specificity. LH has a beta subunit of 121 amino acids and is responsible for interaction with the LH receptor. This beta subunit contains the same amino acids in sequence as the beta subunit of hCG, and both stimulate the same receptor; however, the hCG-beta subunit contains an additional 24 amino acids, and the hormones differ in the composition of their sugar moieties. Gonadotropin-releasing hormone from the hypothalamus controls the secretion of the gonadotropins, LH, and LH, from the anterior pituitary. In both males and females, primary hypogonadism results in an elevation of basal follicle-stimulating hormone (LH) and luteinizing hormone (LH) levels. Postmenopausal LH levels are generally above 40 IU/L.
What is the Purpose of the LH Test ?
The LH Test is often advised to both Men and Women in conjunction with other tests including follicle-stimulating hormone (LH), testosterone, estradiol, and progesterone for diagnosing:
- Causes of infertility
- Pituitary disorders that can affect LH production
- Conditions affecting the function of the ovaries or testicles
In Women, it is advised for:
- Investigating irregular periods (menstrual cycles)
- Evaluation of LH levels during the menstrual cycle and identify the most fertile days of a woman
In Children, it is advised to diagnosing
- Delayed/precocious (early) puberty
When is a LH Test Recommended ?
If you have following symptoms or conditions, then LH Test is advised:
- Irregular or Absent Menstrual Cycles
- Infertility or Difficulty in Conceiving
- Signs of Menopause (hot flashes, night sweats)
- Early or Premature Menopause
- Polycystic Ovary Syndrome (PCOS)
- Ovarian Dysfunction or Insufficiency
- Abnormal Hormone Levels (from previous tests)
- Low Sperm Count or Male Infertility
- Pituitary Disorders or Tumors
- Evaluation during Fertility Treatments
Preparation for LH Test
- Unless otherwise directed by your doctor, there is no need for you to make any special preparations before the LH Test.
- In females, preferred sampling time is day 2 / day 3 of the menstrual cycle. Specify the day of the menstrual cycle to your doctor.
- Other blood tests can be carried out in addition to a LH Test. If your doctor advises you to have multiple tests at once, they may ask you to fast for a specific period of time prior to a blood test.
- Avoid vigorous physical activity before the sample collection.
- Follow the preparatory instructions as guided by your doctor.
What is the Cost of a LH Test ?
The Price of a LH Test is Rs. 450. However, cost of the test may fluctuate depending on following factors:
- Other tests advised along with LH Test
- Offers or discounts
- Empanelment of the patient
Components of LH Test
- LH: This Hormone regulates reproduction by triggering Ovulation in Women. It also plays a vital role in stimulating Testosterone synthesis in men. It is commonly tested to diagnose Fertility issues and Hormonal imbalances.
Interpreting the LH Test Results
Depending on your age, gender, medical history, and other factors, test results may differ. Results are expressed in International units per milliliter (IU/mL). Normal LH levels will differ, depending on a person's age and sex.
- Men: 1.24 to 7.8 IU/mL
- Women (Follicular phase of Menstrual Cycle): 1.68 to 15 IU/mL
- Women (Midcycle Peak): 21.9 to 56.6 IU/mL
- Women (Luteal Phase): 0.61 to 16.3 IU/mL
- Women (Postmenopausal): 14.2 to 52.3 IU/mL
How is the LH Test Done ?
The Blood Sample for LH Test is taken in following steps:
- Give sample on the day specified by your doctor
- The area where the needle will be inserted to take your blood is cleaned with an antiseptic alcohol wipe. The hollow on the inside side of the elbow or the tip of the finger are the most common sites for this.
- A tourniquet or a band is tied around your upper arm to facilitate the access to the vein in your arm.
- A needle is used to puncture your vein. The blood sample is collected into a test tube attached to the needle. The needle may cause a small pinch or sting when it is inserted.
- Once the vial or test tube is filled, the blood sample collection for the test is finished and the needle is taken out.
- Finger pressure is applied on the puncture site to stop the bleeding and the band aid is applied at the site.
How to Schedule A LH Test with Dr. B. Lal Lab ?
- Go to the Dr. B. Lal Lab website.
- Go to the “Book a test” tab.
- Select the “Lab Test” tab.
- Type “LH Test” in the search bar.
- Click on the test.
- The test page with all the test details will show up.
- Click on “Book Now”.
- Login and verify your mobile number with OTP.
- Now enter your details.
- Select date & time for booking LH Test in Jaipur.
- Check out.
+91 9166125555
Add Tests & Packages