Which organization was the forerunner of the Food and Drug Administration?

All of the following are reasons for a pulse oximeter to read "Error" except

(A) low capillary blood flow. (B) peripheral vasoconstriction. (C) extremity movement. (D) hyperthermia.

Which of the following is the most important precaution in order to avoid hematoma formation?

A) Avoid PSA nerve blocks because infiltrations are safer injections B) Avoid using large gauge needles that are flexible and can unknowingly pierce vessels C) Avoid multiple needle penetrations D) Never inject before carefully assessing the anatomy in the area of the injection