Which Situations Best Demonstrate the Fundamentals of Pain Management

Which situations best demonstrate the fundamentals of pain management?

A) A clinician assesses the patient, including taking vital signs. The patient receives the same dose of drug that has always been effective. Today the patient is not adequately numb and he is asked to reschedule an appointment for another day.
B) A clinician assesses the patient and determines there is no physical reason the patient could not receive anesthesia for periodontal maintenance. The patient reports she always has difficulty getting numb therefore the patient is referred to a periodontist for treatment.
C) A clinician assesses the patient and readies the patient for treatment. The patient mentions that he was not numb enough at his last appointment. It is decided that another drug and technique will be tried at this appointment.
D) A clinician asks the patient if she has had any difficulty with anesthesia in the past. The patient indicates she has never had any problem and always gets really numb; therefore treatment is provided without difficulty.