Which of the Following Should Be Performed Before Considering Conscious

Which of the following should be performed before considering conscious sedation?

A) Obtain an accurate history, physical, height, and weight.
B) Assess heart/lungs and document airway patency.
C) Acquire a list of all medications including over-the-counter drugs, herbal medications, alcohol, and illicit drugs.
D) List all known allergies to food and medication.
E) All of the above