1. The possible reason for John's chest pain would be due to atrial fibrillation. This is a quick and uneven heart rate which causes heart failure and stroke.
3) John's teammates should take following actions at the scene: They should take him to a comfortable place, give him a semi-sitting position.
The doctor has to give 12 ml for 3 g of medication at a 25mg/ml ratio to the patient.
Here the doctor is giving 3 g of medication to the patient.
The concentration ratio for the medication is 25mg/ml.
Medication is given to the patient= (Amount medication)/(Concentration Ratio)
= 3/ 0.25
= 12 ml
Thus the amount to be given to the patient is 12ml with a 25mg/ ml concentration ratio.
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