Anesthesia Hub -

10 Random Questions

Following induction of general anesthesia, mask ventilation and the initial attempt at intubation is unsuccessful. Which of the following procedures is most appropriate?

(A) Administration of additional muscle relaxant
(B) Repeat attempt at intubation
(C) Fiberoptic intubation
(D) Retrograde intubation
(E) Cricothyroidotomy

BASIC General

In a patient with surgically significant aortic insufficiency, cardiac output measured by thermodilution will

(A) be greater than right ventricular output
(B) be less than left ventricular output
(C) be less than cardiac output measured by the Fick method
(D) be inaccurate because of decreased signal-to-noise ratio
(E) underestimate net systemic arterial blood flow

ADVANCED Cardiac

Which of the following statements concerning absorption of irrigation fluid during transurethral resection of the prostate is true?

(A) Hydrostatic pressure has minimal effect on the amount of fluid absorbed
(B) Typically 10 to 30 ml of fluid per minute are absorbed
(C) Use of iso-osmotic solutions decreases the risk of hyponatremia
(D) CNS complications are independent of the type of fluid used
(E) Spinal anesthesia to T6 will mask the symptoms of overhydration

ADVANCED General

During anesthesia with nitrous oxide and isoflurane in a 70-kg, 25-year-old patient, airway resistance would be decreased by

(A) a decrease in lung volume
(B) insertion of a 9-mm endotracheal tube
(C) administration of atropine
(D) neuromuscular block with d-tubocurarine
(E) movement of the patient from the supine to the sitting position

BASIC General

A 57-year-old man with hepatocellular disease is scheduled to undergo a colectomy for colon cancer. Preoperative laboratory studies show a plasma albumin concentration of 2.4 g/dl (normal = 3.5 to 5.5 g/dl); prothrombin time is 16 sec (control 12 sec). Which of the following statements concerning the anesthetic management of this patient is true?

(A) Atracurium will have a prolonged duration of action
(B) The risk for perioperative hyperglycemia is increased
(C) Mivacurium will have a shortened duration of action
(D) The unbound fraction of thiopental will be increased
(E) Vitamin K injection will normalize the prothrombin time

BASIC General

Each of the following is an effect of intravascular radiographic contrast media EXCEPT

(A) altered protein binding of anesthetic drugs
(B) bronchospasm
(C) increased systemic vascular resistance
(D) pulmonary edema
(E) seizures

ADVANCED Regional & Pain

Hemodilution is used during profound hypothermic cardiopulmonary bypass primarily because it

(A) decreases cold-induced coagulopathy
(B) decreases edema formation
(C) increases oxygen-carrying capacity of plasma
(D) increases oxygen dissociation from hemoglobin
(E) limits the cold-induced increase in blood viscosity

ADVANCED Cardiac

A jaundiced patient requires general anesthesia for portocaval shunt. He has a long history of alcohol abuse and is cirrhotic with ascites. Special considerations relevant to induction of anesthesia for this patient include each of the following EXCEPT:

(A) Denitrogenation by mask may be more rapid than expected
(B) The risk of aspiration is increased
(C) The dose of thiopental necessary for induction will be predictably reduced
(D) The duration of succinylcholine action may be prolonged
(E) Alfentanil would be an appropriate supplement

A patient receives 1.5% bupivacaine 40 ml and epinephrine 1:200,000 for axillary brachial plexus block for reduction of a forearm fracture. The tourniquet is inflated to 300 mmHg; 45 minutes later, the patient has pain that radiates to the posteromedial elbow. Which of the following nerves is NOT adequately blocked?

(A) Intercostobrachial
(B) Median
(C) Musculocutaneous
(D) Ulnar
(E) Radial

ADVANCED Regional & Pain

A 30-year-old woman develops urticaria immediately after administration of 2% 2-chloroprocaine for removal of a nevus on the chest wall. This reaction resolves with administration of diphenhydramine and the surgery is rescheduled. During the second procedure, a field block is performed using 10 ml of 1% lidocaine from a multidose vial. Within 10 minutes the patient develops urticaria and wheezing and has difficulty breathing. These symptoms resolve with administration of epinephrine. Which of the following substances is the most likely cause of these reactions?

(A) A paraben derivative
(B) Povidone-iodine
(C) Ethylenediaminetetraacetic acid (EDTA)
(D) Propylene glycol
(E) Sodium bisulfite