Nothing in this act shall:

(a) Prohibit administration of a drug by a duly licensed professional nurse, licensed practical nurse or other duly authorized person for the alleviation of pain, including administration of local anesthetics;

(b) apply to the practice of anesthesia by a person licensed to practice medicine and surgery, a licensed dentist or a licensed podiatrist;

(c) prohibit the practice of nurse anesthesia by students enrolled in approved courses of study in the administration of anesthesia or analgesic as a part of such course of study;

(d) apply to the administration of a pudendal block by a person who holds a valid license as an advanced practice registered nurse in the role of nurse-midwife;

(e) apply to the administration by a licensed professional nurse of an anesthetic, other than general anesthesia, for a dental operation under the direct supervision of a licensed dentist or for a dental operation under the direct supervision of a person licensed to practice medicine and surgery;

(f) prohibit the practice by any registered nurse anesthetist who is employed by the United States government or in any bureau, division or agency thereof, while in the discharge of official duties; or

(g) prohibit a registered professional nurse from administering general anesthetic agents to a patient on ventilator maintenance in critical care units when under the direction of a person licensed to practice medicine and surgery or a person licensed to practice dentistry.