10 Random Questions
Which of the following findings is an early indication of cyanide toxicity?
- (A) Bronchospasm
- (B) Cardiac dysrhythmias
- (C) Decreased mixed venous P02
- (D) Increased intracranial pressure
- (E) Metabolic acidosis
Measurement of which of the following provides the most reliable information about the severity of bronchospasm?
- (A) Diffusing capacity
- (B) Expiratory reserve volume
- (C) Forced expiratory volume in 1 second
- (D) Residual volume
- (E) Total lung capacity
Which of the following is the primary factor regulating normal coronary blood flow?
- (A) Aortic diastolic pressure
- (B) Coronary perfusion pressure
- (C) Heart rate
- (D) Myocardial oxygen consumption
- (E) Systolic wall tension
Following a vaginal hysterectomy in the lithotomy position under general anesthesia, a patient has numbness of the lateral aspect of the left calf and medial half of the dorsum of the left foot. On physical examination she has footdrop and the toes cannot be extended. Which nerve is most likely to be involved?
- (A) Common peroneal nerve
- (B) Deep peroneal nerve
- (C) Posterior tibial nerve
- (D) Saphenous nerve
- (E) Sciatic nerve
Each of the following conditions causes resistance to nondepolarizing neuromuscular blockade EXCEPT
- (A) chronic severe infections
- (B) major burns
- (C) myotonia congenita
- (D) prolonged immobilization
- (E) upper motor neuron injury
Two days after total abdominal hysterectomy, a 54-year-old woman develops lethargy followed by seizures and coma. Laboratory studies show a serum sodium concentration of 108 mEq/L and serum osmolality of 225 mOsm/kg. The most appropriate next step in management is administration of which of the following?
- (A) Desmopressin
- (B) Furosemide only
- (C) Saline solution 0.9% only
- (D) Furosemide and saline solution 0.9%
- (E) Furosemide and saline solution 3%
Immediately after a retrobulbar block for cataract surgery, the eye grossly protrudes and the patient has the sensation of pressure in the eye. The most appropriate initial intervention is
- (A) hyperventilation
- (B) surgical drainage of a hematoma
- (C) manual compression of the globe
- (D) administration of atropine intravenously
- (E) administration of mannitol intravenously
Pain and spasm due to injury of the deltoid muscle is most effectively relieved by
- (A) axillary block
- (B) cervical sympathetic block
- (C) interscalene brachial plexus block
- (D) paravertebral block at C4
- (E) superficial cervical plexus block
A mechanically ventilated newborn infant is undergoing gastroschisis repair during halothane anesthesia. Based on the right radial artery catheter tracing shown, which of the following is the most appropriate conclusion?
- (A) The abdomen has not yet been incised
- (B) The anesthetic should be changed from halothane to isoflurane
- (C) The ductus arteriosus is still open
- (D) The infant is hypovolemic
- (E) The tidal volume is inadequate
A patient with low cardiac output following coronary artery bypass grafting is transferred to the intensive care unit where a chest roentgenogram confirms proper placement of the pulmonary artery catheter. Serial pulmonary artery occlusion pressures are then measured. Immediately following inflation of the balloon with 1.5 ml of air in the wedged position, brisk bleeding is noted from the endotracheal tube. The most appropriate immediate management is to
- (A) withdraw the pulmonary artery catheter
- (B) perform endobronchial intubation
- (C) apply 15 to 20 cmH20 positive end-expiratory pressure to the airway
- (D) administer fresh frozen plasma rapidly
- (E) decrease blood pressure rapidly with nitroprusside