Hmm how to put this? For the sake of discussion we will pretend Asthma doesnt fall under the umbrella term of COPD.
I looked into using Mag for COPD exacerbation several months ago. Of the few small studies I found, the best conclusion was that it might potentiate the effects of other bronchodilators, but had no effect on hospital admission or length of stay. Nor was it recommended for routine use.
I have not personally had to resort to Mag, nor have I ever had a protocol for Mag in COPD patients, only specific to asthma. Others that have actually used it may have differing results.
I think for this particular patient it may have helped since he was having actual bronchospasms, but to answer your original question, yes I would use mag before epi in elderly tachycardic patients, but I doubt that it would be beneficial to most of that demographic.
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