A nurse is caring for an infant weighing 7.5 kg who has had a total urine output of 93 mL over the past 12 hours. True or False: Based on this information, the infant's urine output is within the normal range for expected urine output based on age.

Choice A rationale The expected urine output for an infant is 1-2 mL/kg/hr. For this 7.5 kg infant, the minimum expected output is (1 mL/kg/hr× 7.5 kg) × 12 hours = 90 mL. The actual output of 93 mL over 12 hours is just above the minimum of 90 mL, placing it within the normal, expected physiological range. Choice B rationale This choice is incorrect because the calculated minimum normal urine output for a 7.5 kg infant over 12 hours is 90 mL. The actual output of 93 mL exceeds this minimum threshold, confirming that the infant's renal excretion is adequate and within the lower bounds of the normal physiological range.