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Prerenal azotemia

  • Alternative Names

    Azotemia - prerenal; Uremia; Renal underperfusion

    • Confusion
    • Decreased alertness
    • Decreased or no urine produced
    • Dry mouth
    • Fatigue
    • Pale skin color
    • Rapid pulse
    • Swelling
    • Thirst

    Other symptoms may include:

    • Excessive urination at night
    • Pain in the abdomen

    Signs and tests

    An examination may show:

    • Collapsed neck veins
    • Dry mucus membranes
    • Little or no urine in the bladder
    • Low blood pressure
    • Low heart function or hypovolemia
    • Poor skin turgor
    • Rapid heart rate
    • Reduced pulse pressure (difference between systolic blood pressure and diastolic blood pressure)
    • Signs of acute kidney failure

    The following tests may be done for prerenal azotemia:

    • Blood creatinine
    • BUN
    • Osmolality and specific gravity
    • Urine tests to check sodium and creatinine levels and to monitor kidney function