Polyuria The volume of urine produced per day varies in each individual and is affected by the amount of fluid intake, physiological requirements and insensible losses. Polyuria is arbitrarily defined as urine output of more than three litres in 24 hours. Causes Diuretics Therapeutic • Frusemide • Bendrofluazide • Amiloride Osmotic • Hyperglycaemia • Hypercalcaemia • Mannitol • Urea Diabetes Insipidus Cranial • Head injuries • Neurosurgery • Brain tumours (especially of pituitary) • Idiopathic deficiency of ADH production • Inherited (dominant or recessive) • Pituitary granulomas, e.g. sarcoidosis, TB • (commoner where TB is endemic) • Opiates Nephrogenic • Drugs • Lithium • Demeclocycline • Hypokalaemia • Chronic tubulointerstitial nephritis • Recovering acute tubular necrosis • Recovering obstructive uropathy • Chronic hypercalcaemia • Inherited (X-linked) Excessive Fluid Intake • Drug-induced thirst – anticholinergics • Psychogenic • Hypothalamic disease Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading... Related Related posts: Incontinence Syncope Haematemesis Disorders Stay updated, free articles. Join our Telegram channel Join Tags: Churchills Pocketbook of Differential Diagnosis May 18, 2017 | Posted by admin in GENERAL & FAMILY MEDICINE | Comments Off on Polyuria Full access? Get Clinical Tree
Polyuria The volume of urine produced per day varies in each individual and is affected by the amount of fluid intake, physiological requirements and insensible losses. Polyuria is arbitrarily defined as urine output of more than three litres in 24 hours. Causes Diuretics Therapeutic • Frusemide • Bendrofluazide • Amiloride Osmotic • Hyperglycaemia • Hypercalcaemia • Mannitol • Urea Diabetes Insipidus Cranial • Head injuries • Neurosurgery • Brain tumours (especially of pituitary) • Idiopathic deficiency of ADH production • Inherited (dominant or recessive) • Pituitary granulomas, e.g. sarcoidosis, TB • (commoner where TB is endemic) • Opiates Nephrogenic • Drugs • Lithium • Demeclocycline • Hypokalaemia • Chronic tubulointerstitial nephritis • Recovering acute tubular necrosis • Recovering obstructive uropathy • Chronic hypercalcaemia • Inherited (X-linked) Excessive Fluid Intake • Drug-induced thirst – anticholinergics • Psychogenic • Hypothalamic disease Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading... Related Related posts: Incontinence Syncope Haematemesis Disorders Stay updated, free articles. Join our Telegram channel Join Tags: Churchills Pocketbook of Differential Diagnosis May 18, 2017 | Posted by admin in GENERAL & FAMILY MEDICINE | Comments Off on Polyuria Full access? Get Clinical Tree