Which term describes producing less urine?

• A. Nocturia
• B. Polyuria
• C. Decreased urine output
• D. Increased urine output

Answer: (C)

Reduced urine production is the concept being tested. The best match among the options is “Decreased urine output” because it directly describes a lower amount of urine being produced, which is what oliguria means in medical terms. The other phrases point to different patterns: nocturia means urinating at night, polyuria refers to producing abnormally large amounts of urine, and increasing urine output is essentially the same as polyuria. In clinical language, the precise term is oliguria, with typical thresholds like urine output less than 0.5 mL/kg/hour in adults or under about 400 mL per day.