What can I expect during human growth hormone tests?

A blood test for human growth hormone (HGH) testing is usually required. Typically, an individual will be required to take a human growth hormone test for eight to ten hours, and may also be asked to refrain from taking any medications. Blood will be drawn and then sent to a lab for processing. The test results will indicate whether a person's HGH levels are normal, high, or low.

Human growth hormone levels are measured using a growth hormone (GH) test. Children who have increased in height or have lost growth compared to the normal height-for-age distribution may be screened for gigantism or dwarfism. In adults, HGH replacement therapy, or high levels of HGH in general, can disrupt metabolism and cause tissues to enlarge, resulting in a condition known as acromegaly.

Certain prerequisites must be met before testing for human growth hormone. A doctor may require a patient to fast for 8 to 10 hours before administering the test. Refraining from eating is necessary because certain foods can disrupt your blood or hormones and cause an inaccurate test result. Medications such as birth control, insulin, aspirin, and amphetamines also alter hormone levels in a way that would interfere with hormone tests. As a result, a doctor may require a patient to stop taking their prescription medications prior to human growth hormone testing.

To draw blood for the human growth hormone test, a doctor or nurse will wrap an elastic band or other type of constriction around the patient's arm so that blood flow is restricted and the veins are easier to delineate. A sterilized needle will then be used to fill a vile with the patient's blood. Once an adequate amount of blood has been collected, pressure will be applied to the site where the needle made contact to stop any bleeding associated with the needle. Finally, a bandage is placed over the area to prevent infection and speed up the recovery process.

Potential recipients of human growth hormone tests should be aware of several potential side effects associated with having blood drawn. First, if not enough pressure is applied after the procedure, bruising of the skin can occur. Second, the vein from which the blood is drawn can become swollen and cause severe discomfort. Finally, patients with thin blood due to a blood clotting disorder or excessive aspirin use may experience prolonged bleeding.

Samples taken for human growth hormone testing are sent to laboratories for scientific testing. Appropriate amounts of HGH vary by gender and age. For men, the blood must contain less than five nanograms per milliliter (ng/mL) of HGH. Women should expect to have less than 10 ng/ml of hgh in their blood. Children's blood levels should be less than 20 ng/mL.

Higher or lower levels of HGH in the blood identify possible ailments. High amounts of hgh indicate gigantism in children and acromegacy in adults. An HGH deficiency can suggest dwarfism in children and a pituitary gland problem in adults.

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