Body Fluid Balance ADH Test

• Description: Detects levels of vasopressin, a hormone that regulates the body’s fluid balance.
• Purpose of the Test: Helps evaluate conditions such as Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) and diabetes insipidus, and assesses pituitary gland function and hydration status.
• Importance of the Test: Provides critical information for diagnosing fluid and electrolyte disorders, identifying the cause of ADH imbalance, and guiding appropriate treatment.

• Fluid Balance Disorders: Individuals with symptoms of fluid imbalance, such as severe dehydration or fluid retention.
• Diabetes Insipidus: Patients showing signs like excessive urination or extreme thirst.
• Unexplained Symptoms: Individuals with unexplained weight loss or persistent fatigue.
• Pituitary Issues: Patients with known medical conditions affecting pituitary function or fluid regulation, such as pituitary tumors or lung diseases.
• Medication Effects: People taking medications that affect fluid levels or ADH, requiring assessment of hormone levels.

• Excessive Thirst: Feeling abnormally thirsty (polydipsia).
• Urine Volume Changes: Increased urination (polyuria) or decreased urine output.
• Fluid Retention: May cause swelling or edema.
• Dehydration: Evident through dry mouth or skin.
• Fatigue and Unexplained Weight Loss: Persistent tiredness or unexpected weight changes.
• Neurological Symptoms: Headache or dizziness related to fluid level changes in the body.

Normal Vasopressin (ADH) Levels Usually range between 1-5 picograms/mL (pg/mL) or 0.5-2.5 picomoles/L (pmol/L).