Is there a pharmacological benefit to administering dexamethasone PO vs IV/IM or is it the preferred route simply to avoid unnecessary sharp use? 

Why do the pandemic guidelines allow for the administration of 2 doses of epinephrine (<50y) in bronchoconstriction (asthma exacerbation) vs the ALS PCS allowing only a single dose (without age guideline)?

Does wheezing have to be present in the patient assessment to administer Ventolin?