Anesthesia Hub -

10 Random Questions

The induction dose of thiopental should be decreased in each of the following situations EXCEPT

(A) age greater than 70 years
(B) cardiogenic shock
(C) decreased hepatic blood flow
(D) hypoalbuminemia
(E) hypothyroidism

Local anesthetics block nerve impulses through which of the following mechanisms of action?

(A) Decreasing ATP in neuronal cell membranes
(B) Decreasing the neuronal resting membrane potential
(C) Increasing extracellular calcium concentration
(D) Inhibiting sodium ion influx across the neuronal cell membrane
(E) Opening sodium channels at the nodes of Ranvier

Retrobulbar block for ophthalmologic surgery can be administered safely to patients with which of the following conditions?

(A) Agitation
(B) Bleeding disorder
(C) Frequent coughing spasms
(D) Increased intraocular pressure
(E) Perforated globe

ADVANCED Regional & Pain

Following protamine administration, profound pulmonary hypertension is most likely initiated by release of

(A) epinephrine
(B) histamine
(C) leukotriene
(D) norepinephrine
(E) thromboxane

ADVANCED Pharmacology & Pharmacokinetics Cardiac

During a reoperative total hip arthroplasty requiring transfusion of 8 units of packed red blood cells, blood begins to ooze from the operative field and intravenous catheter sites. Urine is pink. The most likely cause is

(A) citrate intoxication
(B) factor V and VIII deficiencies
(C) rhabdomyolysis
(D) thrombocytopenia
(E) transfusion reaction

BASIC Transfusions & Fluids General

Each of the following conditions is associated with autonomic hyperreflexia in patients with spinal cord injury EXCEPT

(A) bradycardia
(B) flushing below the level of injury
(C) headache
(D) sweating above the level of injury
(E) systolic hypertension

ADVANCED General

During active labor, 10 ml of bupivacaine 0.5% with epinephrine 1:200,000 is administered epidurally. Fifteen minutes later, maternal blood pressure is 70/50 mmHg and heart rate is 70 bpm; fetal heart rate is 90 bpm for 45 seconds, with loss of beat-to-beat variability. The most likely explanation for the fetal vital signs is

(A) fetal bupivacaine cardiotoxicity
(B) maternal bupivacaine cardiotoxicity
(C) maternal hypotension
(D) uterine artery vasoconstriction
(E) umbilical cord compression

ADVANCED OB

A 70-year-old man who has just undergone an abdominal aortic aneurysm repair under halothane anesthesia develops hypertension, dyspnea, and cyanosis shortly after awakening in the recovery room. Administration of furosemide 20 mg intravenously improves the cyanosis within 10 minutes. This immediate effect of furosemide is best explained by

(A) inotropic effect from electrolyte shifts
(B) decreased preload through diuresis
(C) increased peripheral venous capacitance
(D) decreased pulmonary vascular resistance
(E) increased coronary blood flow

ADVANCED Pharmacology & Pharmacokinetics General

Block of each of the following nerves is required for inguinal herniorrhaphy EXCEPT the

(A) genitofemoral
(B) iliohypogastric
(C) ilioinguinal
(D) obturator
(E) twelfth thoracic

ADVANCED Regional & Pain

A patient is scheduled for right pneumonectomy. A left-sided double-lumen endobronchial tube is inserted. After the endobronchial side is clamped and both cuffs are inflated, breath sounds are heard only on the left. Which of the following is the most likely cause?

(A) Herniation of the endobronchial cuff over the carina
(B) Occlusion of the right upper lobe bronchus
(C) Placement of the endobronchial lumen in the left mainstem bronchus
(D) Placement of the endobronchial lumen in the right mainstem bronchus
(E) Placement of the endobronchial lumen in the trachea

ADVANCED General Respiratory & Critical Care