A patient, weighing 90 kg, had a urine output of 25 cc over the last 12 hours. The nurse would categorize this patient's acute renal functioning as being which of the following according to the RIFLE criteria?
1. risk
2. failure
3. injury
4. loss
2
Rationale: According to the RIFLE criteria, failure is a urine output of less than 0.3 ml per kg of body weight or anuria for 12 hours. The patient's urine output over the last 12 hours has been 25 cc which would be comparable to the failure category within the RIFLE criteria. Risk would be a urine output of 45 cc over 6 hours. Injury would be 45 cc over 12 hours. Loss would be a complete loss of renal function for at least 4 weeks.
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