Anesthesia Hub -

10 Random Questions

Which of the following statements about pulmonary function testing is true?

(A) Forced expiratory volume in one second (FEV1) is directly related to maximum voluntary ventilation
(B) FEV, is the most reliable indicator of small airways resistance
(C) Forced vital capacity is markedly decreased in obstructive lung disease with air-trapping
(D) Maximum mid-expiratory flow is less effort dependent than FEV1
(E) Three-second forced expiratory volume is the amount of air exhaled during the third second of exhalation

A 40-year-old man requires brief surgical relaxation after administration of neostigmine and glycopyrrolate for reversal of vecuronium-induced neuromuscular blockade. Succinylcholine 1 mg/kg is administered intravenously. Compared with a patient who has not had prior reversal of neuromuscular blockade, which of the following characterizes the succinylcholine blockade in this patient?

(A) Greater antagonism with calcium chloride
(B) Slower onset
(C) Less profound
(D) Less likelihood of phase II neuromuscular blockade
(E) Prolonged duration

BASIC Pharmacology & Pharmacokinetics

Of the following, the most reliable criterion for adequate clinical reversal of neuromuscular blockade is

(A) return of twitch height to 90% of normal
(B) peak inspiratory force of -20 cmH20
(C) T4:T1 ratio of 0.75 for train of four
(D) normal tidal volume
(E) disappearance of post-tetanic facilitation

BASIC Pharmacology & Pharmacokinetics

Which of the following increases during infusion of epinephrine?

(A) Glycogen synthesis
(B) Intracellular glucose concentration
(C) Intracellular potassium concentration
(D) Lipogenesis
(E) Protein synthesis

BASIC Pharmacology & Pharmacokinetics

The most likely effect of a celiac plexus block for an abdominal operation is

(A) bowel distention
(B) hypotension
(C) incisional analgesia
(D) muscle relaxation
(E) urinary retention

ADVANCED Regional & Pain

A 24-year-old man is undergoing induction of general anesthesia prior to appendectomy. During laryngoscopy, he regurgitates a large amount of bilious material. An endotracheal tube is inserted; aspiration shows bile-stained fluid. Which of the following is the most appropriate next step in management?

(A) Infusion of a loading dose of aminophylline
(B) Intravenous administration of broad-spectrum antibiotics
(C) Lavage of the tracheobronchial tree with saline solution
(D) Radiograph of the chest
(E) Proceeding with the operation

A patient with alcoholic cirrhosis, ascites, and gastrointestinal bleeding receives 4 units of red blood cells prior to anesthesia with isoflurane in oxygen for emergency exploratory laparotomy. After the peritoneum is opened and the fluid is drained, blood pressure decreases to 60/40 mmHg and SpO2 decreases to 90%. The most likely cause of the hypoxemia is

(A) acute myocardial ischemia
(B) decreased 2,3-diphosphoglycerate in transfused blood
(C) increased intrapulmonary shunting
(D) relative hypovolemia
(E) venous air embolism

ADVANCED General

Pulsus paradoxus is commonly seen during anesthesia in patients with each of the following conditions EXCEPT

(A) severe asthma
(B) right-sided heart failure
(C) hypovolemia
(D) atrial septal defect
(E) obesity

BASIC Respiratory & Critical Care General

A 50-year-old man who takes aspirin and nifedipine is scheduled for thoracotomy with one-lung ventilation. Which of the following is associated with the greatest risk for intraoperative hypoxemia?

(A) Preoperative withdrawal of nifedipine therapy
(B) Intraoperative mild respiratory acidosis
(C) Intraoperative administration of isoflurane
(D) Intraoperative administration of nitroglycerin
(E) Intraoperative thoracic epidural morphine

ADVANCED Respiratory & Critical Care General

A 27-year-old man with a one-month history of quadriplegia at a C6 level is given general anesthesia for cystoscopy. During the cystoscopy, blood pressure suddenly increases to 220/120 mmHg. Further evaluation is most likely to show

(A) atrial fibrillation (ventricular rate 100 bpm)
(B) paroxysmal atrial tachycardia (150 bpm)
(C) sinus bradycardia
(D) piloerection above the level of C6
(E) sweating above the level of C6

BASIC General