Lifeguards For Life
Forum Deputy Chief
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Just doesn't seem like useful information. IIRC, the epipens say on the side that not all of the medication will be injected, so the EMT just has to trust that their epipen worked correctly and gave the 0.3mg that it was supposed to.
Even if you had a paranoid EMT that believed the first pen didn't work and gave a second, thats still only 0.6mg of Epi, whereas our medic protocol calls for 0.5mg, so I don't think you are putting the patient in extreme danger either way. There are no contraindications for epinephrine in the case of acute severe anaphylaxis
As you can't visualize the epi, I don't think anyone would be able to quantify the residual amount. The pen would feel the same in your hand. If you can hear the epi by holding it to your ear and shaking it it would sound the same.