Practice Quiz

Respiratory Therapist

Category - Initiation and Modification of Interventions

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Which of the following is true about obtaining a negative inspiratory force (NIF) reading?
  1. Wash your hands and adhere to standard precautions and airborne isolation procedures.
  2. Completely occlude the opening on inspiratory force with your finger and instruct patient to inhale as hard as possible from a resting exhalation.
  3. If a one-way valve is used, additional occlusion is needed and can be provided with your finger.
  4. Record data of five trials and chart the best result.
Explanation
Answer: A -The therapist should completely occlude the opening on inspiratory force with your finger and instruct patient to inhale as hard as possible from a resting exhalation.

Protocol to follow for performing a NIF is for therapist to wash their hands, adhere to standard precautions and transmission-based procedures (not airborne isolation).
If a one-way valve is used, no additional occlusion is needed when taking a NIF reading. Only three trials need to be performed and the best result noted in the chart.
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