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Clinical Corner
by Jon Puryear

Drug math: The "Clock" and "App" methods

How confident are you in calculating your medicine drip?

By Jon Puryear

You are awoken by tones for a SOB patient at 0330 and your mind is foggy.

You arrive to find a critical patient with pulmonary edema who is hypotensive in cardiogenic shock. How confident are you in calculating your medicine drip?

There are several ways to perform these calculations for your medicine drip administration including the "Clock" method. In addition, with today's technology, I would like to show you an "App" method, too.

Check out the video below. 

About the author

Jon Puryear, NREMT-P, has been active in EMS since 1983. He has been an active paramedic since 1992 including being an educator and Field Training Officer for several employers. He was the Assistant to the Medical Director for Dr. John Griswell in Ft. Worth, Texas, for EPAB/MedStar EMS and the Education/Clinical Coordinator for CareFlite in the Dallas/Ft. Worth Metropolitan area. Jon is the owner of Jon Puryear EMS CE, performing online live streaming and recorded EMS CE classes and refreshers. The live online classes are taught in a virtual instructor-led online live classroom, which allows the student to participate in "real time." These classes may be taken from any computer or iPad/Apple TV with internet access and no travel is required. Many recorded classes are available in his online Learning Management System. Jon performs a 16 hour NREMT prep onsite to initial programs, and also a recorded version online designed to prepare students for their NREMT written examination. You may contact Jon and obtain more information about his services at and
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Jon Puryear Jon Puryear Friday, August 16, 2013 7:43:16 PM My videos are not loading because there was a server crash deleting them. They will be up and playing soon as they are correcting the problem. I'm sorry for the inconvenience. Please check back soon if they are not playing for you.

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