A nurse is reinforcing teaching with the parent of a school-age child who has asthma about the use of a peak flow meter. Which of the following information should the nurse include in the teaching? (Select all that apply.)

The child should record the average of all the readings as their result.

The child should blow hard and fast into the meter.

The child should repeat the test three times, waiting 30 seconds between each use.

The child should set the sliding marker on the meter to their last reading before using.

The child should sit in a chair while using the meter.