Medicine is an evolving, mobile and fluctuant creature. It is never finished, and neither is your assessment of your patient.
What it is not: See patient, diagnose, start treatment
What it is: See patient, form likely differential, begin most useful treatment, reassess, tweak and alter treatment to optimise response, reassess, reassess, reassess!
The old ABCDE assessment is really:
A, try something, A,B, try something, A, B, C, try something, A, B, C….. etc
If in any doubt, go back and start again.
unicyclemedic 