مريض يستخدم بخاخ مسحوق جاف (Dry powder inhaler). أي تعليمات صحيحة؟

A client uses a dry powder inhaler. Which instruction is correct?

1. Use it with a spacer at every dose
2. Breathe in fast and deep, and do not exhale into the device
3. Shake the device hard before each use
4. Breathe in very slowly as with a pressurised inhaler

Answer: B) Breathe in fast and deep, and do not exhale into the device. A DPI relies on the client’s inspiratory force, so it needs a fast deep breath; exhaling into it moistens and spoils the powder. Pressurised MDIs need slow inhalation, shaking and may use a spacer.