Anesthesia Hub -

10 Random Questions

Delirium produced by high doses of atropine can be reversed by intravenous injection of

(A) diphenhydramine
(B) flumazenil
(C) naloxone
(D) neostigmine
(E) physostigmine

A patient becomes flushed, dyspneic, and hypotensive during transfusion of 1 unit of packed red blood cells in the PACU. After discontinuing the transfusion, the most appropriate next step is administration of

(A) aminophylline
(B) cimetidine
(C) diphenhydramine
(D) epinephrine
(E) hydrocortisone

BASIC Transfusions & Fluids General

During surgery with a carbon dioxide laser, which inhaled gas mixture is LEAST likely to promote combustion of the endotracheal tube?

(A) Oxygen 25%-helium 75%
(B) Oxygen 25%-nitrogen 75%
(C) Oxygen 25%-nitrous oxide 75%
(D) Oxygen 50%-nitrogen 50%
(E) Oxygen 50%-nitrous oxide 50%

BASIC Equipment & Physics

A 70-year-old man who underwent bilateral carotid endarterectomies two years ago is to undergo anesthesia and surgery. The denervation of the carotid bodies is likely to result in

(A) chronic respiratory alkalosis
(B) decreased ventilatory response to hypoxemia
(C) increased ventilatory response to hypercarbia
(D) labile hypertension
(E) resting bradycardia

BASIC General

A 27-year-old man with a one-month history of quadriplegia at a C6 level is given general anesthesia for cystoscopy. During the cystoscopy, blood pressure suddenly increases to 220/120 mmHg. Further evaluation is most likely to show

(A) atrial fibrillation (ventricular rate 100 bpm)
(B) paroxysmal atrial tachycardia (150 bpm)
(C) sinus bradycardia
(D) piloerection above the level of C6
(E) sweating above the level of C6

BASIC General

The decrease in hematocrit that accompanies acute major blood loss results from

(A) decreased capillary hydrostatic pressure
(B) increased capillary oncotic pressure
(C) decreased interstitial fluid oncotic pressure
(D) increased interstitial fluid hydrostatic pressure
(E) decreased viscosity of the flowing blood

In the absence of coronary artery disease, isoflurane-induced vasodilation and tachycardia are beneficial hemodynamic goals for which of the following cardiac diseases?

(A) Aortic regurgitation
(B) Aortic stenosis
(C) Asymmetric septal hypertrophy (IHSS)
(D) Mitral stenosis
(E) Pulmonary regurgitation

ADVANCED General Cardiac

Which of the following differentiates midazolam from diazepam administered intravenously in equipotent doses?

(A) Greater hemodynamic stability
(B) Lack of active metabolites
(C) Less respiratory depression
(D) Longer duration of action
(E) More rapid onset

An advantage of CPDA-1 over CPD for storage of packed red blood cells is

(A) greater enhancement of red cell survival
(B) lesser increase in plasma hemoglobin concentration
(C) lesser increase in PC02 of stored blood
(D) better maintenance of blood pH
(E) better maintenance of 2,3-diphosphoglycerate concentration

BASIC Transfusions & Fluids

An 8-kg, 1-year-old boy is scheduled for a bilateral inguinal hernia repair. If regional anesthesia is to be used for post-operative analgesia, which of the following statements is true?

(A) Caudal administration of 0.25% bupivacaine will provide analgesia without evidence of motor block
(B) Caudal administration of 0.125% bupivacaine is as effective as caudal administration of 0.25% bupivacaine
(C) Caudal analgesia is more difficult to achieve in young children than in adults
(D) The recommended volume of local anesthetic used for caudal analgesia in children is 3 ml per year of age
(E) The volume of 0.25% bupivacaine required for bilateral ilioinguinal and iliohypogastric nerve blocks would be too large

ADVANCED Pediatric Regional & Pain