The Department was established in 1947 and is currently divided into three major Departmentsâthe Department of the Army, Navy and Air Forceâand has a military staff of 1,418,542 (553,044 US Army; 329,304 US Navy; 202,786 US Marine Corps; 333,408 US Air Force). The DoD is headed by the Secretary of Defense.
PREEMPTIVE analgesia is an antinociceptive treatment that prevents establishment of altered processing of afferent input, which amplifies postoperative pain. The concept of preemptive analgesia was formulated by Crile at the beginning of the previous century on the basis of clinical observations.
Overview. The American College of Emergency Physicians (ACEP) defines procedural sedation as a technique of administering sedatives or dissociative agents with or without analgesics to induce a state that allows the patient to tolerate unpleasant procedures while maintaining cardiorespiratory function.