Anesthesia Hub -

10 Random Questions

Which of the following muscle relaxants has a prolonged duration of action in a patient who is homozygous for atypical plasma cholinesterase?

(A) Atracurium
(B) Doxacurium
(C) Mivacurium
(D) Pipecuronium
(E) Vecuronium

BASIC Pharmacology & Pharmacokinetics

A 30-year-old woman is undergoing laparoscopic tubal ligation. Thirty minutes after induction of general anesthesia, arterial oxygen saturation has decreased to 89%. Arterial blood gases at an FiO2 of 1.0 are PaO2 63 mmHg and PaCO2 40 mmHg; PetCO2 is 32 mmHg. Which of the following is the most likely cause?

(A) Carbon dioxide embolus
(B) Endobronchial intubation
(C) Hypoventilation
(D) Inadvertent application of high levels of positive end-expiratory pressure
(E) Leak in the capnography sampling catheter

BASIC Respiratory & Critical Care General

A 65-year-old woman has respiratory distress and loss of consciousness immediately following superficial and deep cervical plexus block for right carotid endarterectomy. Which of the following is the most likely cause?

(A) Phrenic nerve paralysis
(B) Pneumothorax
(C) Recurrent laryngeal nerve block
(D) Subarachnoid injection
(E) Vertebral artery injection

ADVANCED Regional & Pain

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

In an adult undergoing laparotomy, which of the following is the most effective means of maintaining body temperature during the first hour of anesthesia?

(A) Increasing ambient temperature
(B) Using a warming blanket
(C) Warming inspired gases
(D) Warming intravenous fluids
(E) Warming irrigating fluids

Which of the following complications is more likely to occur during cannulation of the left internal jugular vein than during cannulation of the right internal jugular vein?

(A) Injury to the thoracic duct
(B) Injury to the recurrent laryngeal nerve
(C) Injury to the phrenic nerve
(D) Perforation of the esophagus
(E) Pneumothorax

BASIC General

A celiac plexus block provides effective relief of pain associated with primary cancers at each of the following locations EXCEPT the

(A) adrenal gland
(B) liver
(C) pancreas
(D) sigmoid colon
(E) stomach

ADVANCED Regional & Pain

Patients with acute alcohol intoxication are at increased risk for each of the following complications of general anesthesia EXCEPT

(A) aspiration of gastric contents
(B) hyperglycemia
(C) hypothermia
(D) ketoacidosis
(E) respiratory depression

ADVANCED General

Which of the following is the most likely effect of administration of magnesium sulfate in a patient with preeclampsia?

(A) Decreased motor end-plate sensitivity to acetylcholine
(B) Decreased uteroplacental blood flow
(C) Increased platelet aggregation
(D) Increased systemic vascular resistance
(E) Inhibited acetylcholinesterase

ADVANCED OB

After an axillary brachial plexus block, the patient feels pain when the surgeon clips the skin over the thenar eminence. The most likely cause is inadequate anesthesia in the distribution of the

(A) intercostobrachial nerve
(B) median nerve
(C) musculocutaneous nerve
(D) radial nerve
(E) ulnar nerve

ADVANCED Regional & Pain