Final answer:
Urinary frequency during the day without nocturia is usually related to fluid intake. Nocturia without frequency may occur in an elderly patient in whom intravascular volume and urine output increase when supine. Also, renal concentrating ability decreases with age; therefore urine production in the geriatric patient decreases.
Step-by-step explanation:
Urinary frequency during the day without nocturia is usually related to fluid intake. Nocturia without frequency may occur in an elderly patient in whom intravascular volume and urine output increase when supine. Also, renal concentrating ability decreases with age; therefore urine production in the geriatric patient decreases.