ATI Exit Exam Related

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A nurse is preparing to teach a client about the use of a peak flow meter. Which of the following instructions should the nurse include?

  • A. Place the mouthpiece in your mouth and blow out as quickly as you can.
  • B. Exhale slowly into the mouthpiece over 5 seconds.
  • C. Take a slow deep breath before blowing into the mouthpiece.
  • D. Blow into the mouthpiece at a steady rate for 3 seconds.
Correct Answer: A

Rationale: The correct instruction for using a peak flow meter is to place the mouthpiece in your mouth and blow out as quickly as you can. This action helps measure the peak expiratory flow of the client. Choice B is incorrect because exhaling slowly does not provide an accurate peak flow reading. Choice C is incorrect as taking a slow deep breath before blowing interferes with obtaining an accurate measurement. Choice D is incorrect as blowing at a steady rate for 3 seconds may not reflect the peak expiratory flow accurately.