Anesthesia Hub -

10 Random Questions

A 46-year-old man is scheduled for repair of an inguinal hernia. Six years ago, he had an episode of malignant hyperthermia during cholecystectomy. Which of the following is the most appropriate perioperative management?

(A) Administration of a regional anesthetic
(B) Administration of dantrolene orally for two days prior to surgery
(C) Avoidance of all inhalational anesthetics except isoflurane
(D) Avoidance of ester local anesthetics
(E) Flushing the anesthesia machine with oxygen 10 L/min for a minimum of 12 hours

BASIC General Regional & Pain

A 60-year-old obese man who has an antithrombin III deficiency is scheduled for radical prostatectomy. Prior to the operation this patient should receive

(A) fresh frozen plasma
(B) vitamin K
(C) epsilon-aminocaproic acid
(D) heparin
(E) none of the above

ADVANCED Transfusions & Fluids Cardiac

Each of the following landmarks is used in performing wrist block to remove a cystic mass on the fourth digit EXCEPT the

(A) extensor pollicis longus tendon
(B) ulnar artery
(C) palmaris longus tendon
(D) flexor carpi radialis tendon
(E) flexor carpi ulnaris tendon

ADVANCED Regional & Pain

Which of the following statements concerning ketorolac is true?

(A) It binds to opioid receptors
(B) It causes dose-related thrombocytopenia
(C) It decreases heart rate during isoflurane anesthesia
(D) It is eliminated unchanged in urine
(E) It reversibly inhibits cyclooxygenase

BASIC Pharmacology & Pharmacokinetics

A healthy, spontaneously breathing, supine, anesthetized patient has a PaCO2 to PetCO2 difference of 3 mmHg. Following institution of mechanical ventilation the value increases to 12 mmHg. The most likely cause of this change is

(A) cephalad displacement of the diaphragm
(B) decreased production of carbon dioxide
(C) increased cardiac output
(D) increased shunting of blood through dependent lung zones
(E) increased ventilation of nondependent lung zones

BASIC Respiratory & Critical Care

Which of the following is characteristic of the pharmacokinetics of alfentanil?

(A) Clearance is greater than that of fentanyl
(B) Elimination half-life is normal in patients with hepatic insufficiency
(C) Protein binding is minimal
(D) The majority of alfentanil in plasma is ionized
(E) Volume of distribution is smaller than that of fentanyl

Desflurane is delivered using a vaporizer that contains internal heaters because

(A) heat decreases the drug's viscosity
(B) heat reduces thermal loss in the patient
(C) heat increases the drug's oil-gas partition coefficient
(D) heat prevents fluctuations of vapor pressure
(E) it does not vaporize adequately at room temperature

BASIC Equipment & Physics Pharmacology & Pharmacokinetics

Compared with blood anticoagulated with CPD, blood stored in CPDA-1 has

(A) better preservation of 2,3-DPG concentration
(B) better preservation of ATP concentration in erythrocytes
(C) shorter erythrocyte survival
(D) shorter shelf life
(E) decreased platelet aggregation

BASIC Transfusions & Fluids

Which of the following statements concerning the choice of nitroprusside or nitroglycerin to induce deliberate hypotension is true?

(A) Nitroglycerin is more potent
(B) Nitroglycerin produces hypotension by acting on both arterial and venous capacitance vessels
(C) Nitroprusside produces less rebound hypertension on discontinuation
(D) The toxic effects of nitroprusside are independent of dose
(E) The therapeutic effects of nitroprusside may persist on discontinuation

A 35-year-old woman with systemic lupus erythematosus is admitted to the critical care unit following sudden onset of severe chest pain. Examination shows tachycardia, hypotension, pulmonary edema, and a blowing systolic murmur in the left parasternal region. The most appropriate management is

(A) aerosol administration of terbutaline
(B) intravenous infusion of phenylephrine and nitroglycerin
(C) intravenous infusion of esmolol
(D) intravenous infusion of epinephrine and nitroprusside
(E) volume loading with lactated Ringer's solution

ADVANCED General