Anesthesia Hub -

10 Random Questions

Which Mapleson breathing circuit permits the LEAST amount of fresh gas inflow to prevent rebreathing during spontaneous ventilation?

(A) A
(B) B
(C) C
(D) D
(E) E

BASIC Equipment & Physics

Block of the superficial cervical plexus is performed at which location?

(A) At the midposterior border of the sternocleidomastoid muscle
(B) In the interscalene groove
(C) Over the mastoid process
(D) Over the transverse process of C4
(E) Over Chassaignac's tubercle

ADVANCED Regional & Pain

A 5-month-old infant with tetralogy of Fallot is scheduled for elective inguinal herniorrhaphy. Which of the following would require the operation to be postponed?

(A) Current propranolol therapy
(B) Hematocrit of 65%
(C) History of "tet spells"
(D) Patent ductus arteriosus
(E) Room air oxygen saturation of 82%

ADVANCED Pediatric Cardiac

In a patient who is breathing spontaneously, the work of breathing increases with each of the following EXCEPT

(A) decreased compliance
(B) decreased vital capacity
(C) increased carbon dioxide production
(D) increased respiratory rate
(E) increased dead space

Which of the following is most reliable for treatment of cerebral artery vasospasm associated with subarachnoid hemorrhage?

(A) Antifibrinolytic therapy
(B) Hyperventilation
(C) Mannitol infusion
(D) Nitroprusside infusion
(E) Volume expansion

Which of the following interventions is most effective in preventing neurologic injury resulting from global cerebral ischemia?

(A) Induction of barbiturate coma prior to ischemia
(B) Maintenance of serum glucose concentration greater than 200 mg/dl prior to ischemia
(C) Induction of hypothermia to a core temperature of 15 degrees C prior to ischemia
(D) Maintenance of PaCO2 less than 25 mmHg following ischemia
(E) Prevention of systemic hypertension following ischemia

ADVANCED Neuro

A 23-year-old man who is receiving his first anesthetic has not resumed spontaneous ventilation two hours after receiving succinylcholine. The train-of-four monitor shows no twitch response. Which of the following is the most likely cholinesterase genotype in this patient?

(A) Atypical : atypical
(B) Fluoride-resistant : fluoride-resistant
(C) Fluoride-resistant : silent
(D) Normal : normal
(E) Normal : silent

ADVANCED Pharmacology & Pharmacokinetics General

Appropriate anesthetic management of a patient with hypertrophic cardiomyopathy includes each of the following EXCEPT

(A) maintaining normal or slightly greater than normal preload
(B) adjusting positive airway pressure to maintain near normal venous return
(C) preference for volatile agents rather than opiates for anesthesia
(D) use of beta-adrenergic blocking agents to increase ventricular wall compliance
(E) decreasing afterload with peripheral vasodilators

A patient with lumbar disk disease requires lumbar epidural injection of a corticosteroid for control of low back pain. Which of the following statements concerning this treatment is true?

(A) Maximum effect occurs one hour after injection
(B) Maximum effect occurs when drug concentration peaks in cerebrospinal fluid
(C) Maximum effect occurs during the acute phase of the disease
(D) The beneficial effect results primarily from sympathetic neurolysis
(E) It is contraindicated if the patient has had prior surgical procedures on the lumbar disks

ADVANCED Regional & Pain

A 55-year-old man is undergoing craniotomy in the sitting position. Mean arterial pressure is 75 mmHg; arterial blood gas values are PaCO2 41 mmHg and pH 7.37. End-tidal CO2 is 7 mmHg. Which of the following is the most likely cause of the increased PaCO2 to PetCO2 gradient?

(A) Decreased cardiac output
(B) Endobronchial intubation
(C) Hyperinflation of the lungs
(D) Partial disconnect of the capnograph sample tubing
(E) Venous air embolism

BASIC Equipment & Physics Respiratory & Critical Care