Antidiuretic Hormone (ADH) Blood Test

ADH, Vasopressin, AVP


Test Code: 010447
Specimen Type: Blood

Description:

Antidiuretic Hormone (ADH) Blood Test

This test measures the level of Antidiuretic Hormone (ADH) in the blood.  Antidiuretic Hormone is also known as Arginine Vasopressin (AVP).  ADH is a hormone which helps to regulate how much water the kidneys absorb.  Typically, the body produces ADH in response to increased blood osmolality.  Osmolality refers to the amount of dissolved particles in the blood.  ADH production causes the kidneys to conserve water rather than release it from the body in urine.  The increased water causes the blood to be diluted which decreases osmolality.  Normal ADH production helps maintain a healthy water balance in the body.  ADH deficiency can result in frequent urination, dehydration, excessive thirst, and high sodium levels.  Excessive ADH levels can cause increased blood pressure, nausea, lethargy, disorientation, and low sodium levels.  Irregular ADH levels can be caused by a number of conditions including several types of diabetes and various forms of cancer.  

An ADH test may be ordered when someone has symptoms such as headache, nausea, confusion, excessive thirst, or frequent urination.  It may be done as a followup to low blood sodium levels.  ADH is often measured along with osmolality.  See our Antidiuretic Hormone Profile for a test which includes both ADH and Osmolality.

Turnaround for this test is typically 6-13 business days.

Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

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Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

Categories:



TSH