Antidiuretic hormone blood test

A blood sample is needed .

Talk to your health care provider about your medicines before the test. Many medicines can affect ADH level, including: Alcohol Diuretics (water pills) Blood pressure medicines Insulin Medicines for mental disorders Nicotine Steroids

When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging. Afterward, there may be some throbbing or slight bruising. This soon goes away.

ADH is a hormone that is produced in a part of the brain called the hypothalamus . It is then stored and released from the pituitary, a small gland at the base of the brain. ADH acts on the kidneys to control the amount of water excreted in the urine. ADH blood test is ordered when your provider suspects you have a…

Normal values for ADH can range from 0 to 5.9 pg/mL (0 to 5.4 pmol/L). Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or may test different specimens. Talk to your provider about the meaning of your specific test results. Most laboratories cannot run this test.…

A higher-than-normal level may occur when too much ADH is released, either from the brain where it is made or from somewhere else in the body. This is called the syndrome of inappropriate ADH (SIADH). Causes of SIADH include: Brain injury or trauma Brain tumors Fluid imbalance after surgery Infection in the brain or…

There is little risk involved with having your blood taken. Veins and arteries vary in size from one person to another, and from one side of the body to the other. Taking blood from some people may be more difficult than from others. Other risks associated with having blood drawn are slight, but may include: Excessive…

Frasier LL, Keating JJ, Shiroff AM. Endocrine responses in critically ill and trauma patients. In: Shifrin AL, ed. Endocrine Emergencies . Philadelphia, PA: Elsevier; 2022:chap 25. Guber HA, Oprea M, Russell YX. Evaluation of endocrine function. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and…