Antidiuretic hormone (ADH) test is used to help detect, diagnose, and determine the cause of antidiuretic hormone deficiencies and excesses. These conditions are often based on clinical history and other laboratory tests, such as blood and urine osmolality as well as electrolytes. Antidiuretic hormone, also called arginine vasopressin (AVP), is a hormone produced by the hypothalamus in the brain and stored in the posterior pituitary gland at the base of the brain. A variety of disorders, conditions, and medications can affect either the amount of ADH released or the kidneys' response to it. ADH deficiency is often seen with one of two types of diabetes insipidus. Central diabetes insipidus is a decrease in the production of ADH by the hypothalamus or in the release of ADH from the pituitary while nephrogenic diabetes insipidus is characterized by a decrease in the kidney's response to ADH.
Inform your doctor if you are on any medications, have any allergies or underlying medical conditions before your ADH. Your doctor will give specific instructions depending on your condition on how to prepare for ADH.
Avoid alcohol and diuretics before your test.
|UNISEX||All age groups||1 - 5 pg/mL|