During a routine clinic visit, a nurse finds that a 5-year-old girl's systolic blood pressure is above the 90th percentile. What should be the nurse's subsequent action?

D Measure the blood pressure twice more during the visit and calculate the average of the three readings. C Take the child's blood pressure three times during the visit and record the highest reading. B Perform a comprehensive assessment and avoid repeated blood pressure measurements during the examination. A Refer the child to the healthcare provider and schedule a blood pressure evaluation in two weeks.