The Science Journal of the American Association for Respiratory Care

2004 OPEN FORUM Abstracts

INSPIRATORY FLOW RATES BY RESPIRATORY THERAPISTS USING THE IN-CHECK DIAL

Tim Conlin MS, RRT, AE-C, St. Vincent Hospital, Indianapolis IN

Background: Respiratory therapists are often the instructors of inhalation devices for patients, such as metered dose inhalers (pMDI) or dry powder inhalers (DPI). Part of the instruction to use a pMDI is to inhale slowly while actuating the inhaler. The In-check Dial (Clemente-Clark) is a tool used to measure inspiratory flow rates for use with various inhalation devices. It was hypothesized that RT’s would create a higher inspiratory flow rate when using a pMDI by measurement using the In-Check Dial.

Method: RT’s in attendance at a national conference were asked to participate in a study to determine their ability to inhale at the recommended flow rate (25-60L/min) using the In-Check Dial set for pMDI. Three initial measurements were taken, followed by a brief explanation of the device, and then three more measurements were taken.

Results: 54 RT’s participated in the study. 35 of the 54 (64%) had inspiratory flow rates >100L/min and 19 of the 54 (35%) achieved flow rates between 25 and 60L/min. After a brief description, all the RT’s were able to achieve recommended inspiratory flow rates.

Conclusion: The majority of RT’s in this sample were not able to reproduce the correct inspiratory flow rate for a pMDI. After using the In-check Dial, all of the RT’s were able to inhale at the proper flow rate. The In-Check Dial can be a valuable tool to help RT’s instruct proper flow rates with their patients.

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