| Subject | Contents |
| Definition | This symptom is described as decreased urine output, defined as less than 500 ml in 24 hours. |
| Alternative Names | Oliguria |
| Considerations | Though a significant decrease in urine output may indicate a serious, and even life-threatening condition, adequate urine output can often be corrected with prompt medical treatment. |
| Common Causes | Dehydration due to vomiting, diarrhea or fever, and concomitant lack of adequate fluid intake Total urinary tract obstruction, such as resulting from an enlarged prostate Severe infection leading to shock Drugs such as anticholinergics, methotrexate, and diuretics |
| Home Care | Follow prescribed fluid regimens and measure urine output as directed. |
| Call your health care provider if | There is any noticeable and consistent decrease in urine output. You have been vomiting or having bouts of diarrhea or high fevers and are unable to take in enough replacement fluid by mouth. The decrease in urine output is associated with dizziness, lightheadedness, or rapid pulse. |
| What to expect at your health care provider's office | The medical history will be obtained, and a physical examination performed. Medical history questions documenting decreased urine output in detail may include: Time pattern When did this begin? Did it occur suddenly? Has it rapidly become worse? Quality How much fluid is consumed each day? How much urine is produced each day? What color is the urine? Aggravating factors Has there been fever ? Has there been diarrhea ? Has there been vomiting ? With or without nausea ? Is thirst decreased? Relieving factors Does increasing fluid intake increase urine output? Other What other symptoms are also present? Is there puffiness in the skin, around the eyes, or in the hands or feet? Is there moist, pink, warm skin? Is there loose, dry, pale skin ? Are the lips and mouth dry? Is there a distended bladder (can you feel a firm bulge in the pelvis over the pubic bone)? What medications are being taken? Are there any allergies ? Are adequate fluids available and accessible? Past history Have there been any recent injuries such as burns ? Have there been any recent illnesses? Has there been previous problems with the kidneys or bladder? A physical examination will be performed. A catheter may be placed in the urethra to relieve an obstruction and to assist with careful measurement of urine output. Some patients need to be hospitalized for fluid management. Diagnostic tests that may be performed include: Blood studies to monitor electrolytes and renal function CT (cat) scan of the abdomenIntravenous pyelogram ( IVP ) Renal scanAbdominal ultrasoundUrine tests, including tests for infection After seeing your health care provider: You may want to add a diagnosis related to decreased urine output to your personal medical record. |
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