Health A-Z

Nocturia

Clinical Definition Nocturia is a fairly common condition in which a patient has to wake up at night to void the bladder (i.e., urinate). In Our Own Words Most people can sleep six to eight hours without needing to urinate, but patients with nocturia awaken at least once — and frequently, many additional times —

Nocturnal polyuria

Clinical Definition Nocturnal polyuria is an excessive volume of urination at nighttime. Etiologies include, excessive fluid intake (especially of caffeine or alcohol), congestive heart failure, renal insufficiency, and other conditions. Diagnosis depends on a careful health history, physical exam, evaluation of a voiding diary, tests such as urinalysis and urodynamic tests; treatment includes treating underlying

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