Lecture Notes: SIADH vs. Diabetes Insipidus

Presenter: Sarah from RegisteredNurseRN.com

Discusses the differences between Syndrome of Inappropriate Antidiuretic Hormone (SIADH) and Diabetes Insipidus (DI).
Emphasizes understanding Antidiuretic Hormone (ADH) functions to comprehend these conditions.
Encourages taking an online quiz to test knowledge of the material.

Also known as vasopressin.
Regulates water balance in the body and constricts blood vessels.
Works with kidneys to retain or release water.
Produced by the hypothalamus, stored and secreted by the posterior pituitary gland.

Characterized by: Increased ADH.
Causes: Damage to hypothalamus or posterior pituitary, lung cancer, infections (pneumonia, meningitis), Guillain-Barré Syndrome, and certain medications.
Symptoms: Water retention, fluid overload, weight gain, high blood pressure, tachycardia, hyponatremia, confusion, anorexia, low urine output with high urinary specific gravity.
Nursing Interventions: Fluid restriction, monitoring daily weights, strict intake and output.
Medical Treatments: Loop diuretics (watch for hypokalemia), hypertonic IV solutions, Demeclocycline (inhibits ADH).

Characterized by: Decreased ADH.
Causes: Kidney issues, medications, pregnancy, brain trauma.
Symptoms: Excessive urination, dehydration, dry skin, hypotension, dilute urine.
Nursing Interventions: Avoiding diuretic foods and beverages (caffeine, watermelons, etc.).
Medical Treatments: Diabinese (watch for hypoglycemia), Desmopressin (ADH replacement, watch for hyponatremia).

Review key points from the lecture.
Take online quizzes to reinforce knowledge.
Remember the mnemonic for SIADH and DI (I for Increase in SIADH to help differentiate).
Focus on understanding how ADH affects the body to grasp the conditions better.