10 Random Questions
The sudden onset of pulmonary edema can be caused by each of the following EXCEPT
- (A) rapid re-expansion of the lungs following pneumothorax
- (B) upper airway obstruction
- (C) oxygen toxicity
- (D) rupture of mitral papillary muscle
- (E) severe preeclampsia
A multiparous 24-year-old woman sustains an amniotic fluid embolism during general anesthesia. The LEAST likely clinical finding is
- (A) increased end-tidal carbon dioxide tension
- (B) increased uterine bleeding
- (C) jugular venous distention
- (D) ST and T wave abnormalities on ECG
- (E) wheezing
A normal adult is receiving general anesthesia via a standard circle system and controlled ventilation. Mass spectrometer data are shown. Which event is most compatible with these data?
- (A) Endobronchial intubation
- (B) Hemorrhagic shock
- (C) Incompetent expiratory valve
- (D) Substantial decrease in fresh gas flow
- (E) Venous air embolism
One hour after induction of anesthesia for a posterior fossa craniotomy using opioid, relaxant, and nitrous oxide, the brain begins to protrude through the dura. The most effective measure to decrease intracranial pressure is to
- (A) administer additional opioid
- (B) decrease PaCO2 from 25 to 15 mmHg
- (C) drain cerebrospinal fluid
- (D) discontinue nitrous oxide
- (E) induce hypotension
During extracorporeal shock wave lithotripsy, the shock wave should be synchronized with
- (A) the P wave of the ECG
- (B) the R wave of the ECG
- (C) the T wave of the ECG
- (D) peak inspiration
- (E) end-expiration
A 68-year-old patient is undergoing total hip replacement during general anesthesia using positive pressure ventilation and neuromuscular blockade. Intraoperative monitoring shows a gradual decrease in end-tidal CO2, an increase in exhaled tidal volume, and an increase in measured FiO2. Which of the following is the most likely cause of these changes?
- (A) Air entrainment around a deflated endotracheal tube cuff
- (B) Channeling of the exhaled air through the carbon dioxide canister
- (C) Fat embolism
- (D) Inadequate muscle relaxation with spontaneous patient ventilation
- (E) A small hole in the ventilator bellows
Which of the following is most likely to occur during mediastinoscopy?
- (A) Chylothorax
- (B) Compression of the innominate artery
- (C) Injury to the superior laryngeal nerve
- (D) Tracheal tear
- (E) Venous air embolism
Which of the following statements concerning autonomic hyperreflexia after spinal cord transection is true?
- (A) It occurs within 24 hours after the injury
- (B) It occurs with lesions below T10
- (C) It is caused by a reflex increase in parasympathetic outflow
- (D) It is characterized by paroxysmal hypotension and tachycardia
- (E) It is prevented by blocking afferent visceral pathways
An increased initial dose and a decreased maintenance dose of pancuronium are required in patients with
- (A) advanced age
- (B) burns
- (C) cirrhosis
- (D) chronic renal failure
- (E) fever
Which of the following is the most likely sequela of interscalene brachial plexus block?
- (A) Cervical epidural block
- (B) Hemidiaphragmatic paralysis
- (C) Pneumothorax
- (D) Seizure
- (E) Vocal cord paralysis