Psychogenic polydipsia

Another common clinical setting for symptomatic hyponatremia is psychogenic polydipsia. If renal diluting capability is intact, a normal individual can theoretically excrete up to 20 l/day, so that development of hyponatremia without elevated plasma ADH levels requires an intake of over 20 l/day in a 60-kg adult. In practice, most patients with psychogenic polydipsia who develop hyponatremia have ingested substantially less water; rather, they have an abnormal urinary diluting capacity with elevated plasma ADH levels, and many are schizophrenic. Beer potomania is a variation of psychogenic polydipsia, where the hyponatremia is associated with massive ingestion of beer, poor nutrition, impaired urinary dilution, and probable low plasma ADH levels.

Was this article helpful?

0 0
Sleep Apnea

Sleep Apnea

Have You Been Told Over And Over Again That You Snore A Lot, But You Choose To Ignore It? Have you been experiencing lack of sleep at night and find yourself waking up in the wee hours of the morning to find yourself gasping for air?

Get My Free Ebook

Post a comment