Urine output volumes for one time interval may need to be extrapolated to a different time interval.
Assumption: urine output is constant.
urine output in mL per hour =
= (urine volume in mL) / (time interval for collection in hours)
urine volume predicted for time interval =
= (urine output in mL per hour) * (number of hours in new time interval)
Performance:
• The greater the time interval the better the estimate.
• When asleep the urine output falls so urine output is not constant.
• Urine collection is often inaccurate.
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Purpose: To estmate urine volume output for a new time interval based on the volume passed over a given time.
Specialty: Nephrology, Clinical Laboratory
Objective: laboratory tests, other testing
ICD-10: ,
