10 Random Questions
When succinylcholine is administered intravenously to infants, intragastric pressure
- (A) is usually unchanged
- (B) increases to a peak of 30 cmH20 within two minutes
- (C) increases because of abdominal muscle fasciculations
- (D) increases because of an acetylcholine-like effect on the vagus nerve
- (E) peaks and subsides within five minutes
A 72-year-old man has ST-segment depression of 2 mm in ECG lead II immediately after suprarenal aortic clamping. Which of the following is the most likely cause?
- (A) Decreased left ventricular stroke volume
- (B) Decreased venous return
- (C) Increased left ventricular wall tension
- (D) Reflex tachycardia
- (E) Release of epinephrine from hypoperfused adrenal medulla
Postdural puncture headache occurs most commonly in which of the following patients?
- (A) Children
- (B) Elderly persons
- (C) Misn
- (D) Parturients
- (E) Persons with obesity
A 15-kg, 3-year-old child is anesthetized for an inguinal hernia repair with halothane and nitrous oxide. The trachea is intubated after administration of succinylcholine 30 mg. At the conclusion of the 45-minute procedure, the child is not breathing; a peripheral nerve twitch monitor indicates no response to a train-of-four stimulus. Further investigation is most likely to show
- (A) abnormal response to nondepolarizing muscle relaxants
- (B) a low dibucaine number
- (C) a low plasma cholinesterase concentration
- (D) an underlying myopathy
- (E) a positive halothane-caffeine contracture test
Infants with untreated pyloric stenosis are at increased risk for each of the following EXCEPT
- (A) congenital heart disease
- (B) dehydration
- (C) hypokalemia
- (D) increased gastric acidity
- (E) metabolic alkalosis
Which of the following chemotherapeutic drugs is a cause of pulmonary fibrosis?
- (A) Bleomycin
- (B) Cisplatin
- (C) Cyclosporine
- (D) Daunorubicin
- (E) Vincristine
A 30-year-old man has had burning pain, allodynia, and edema of the hand for six weeks after sustaining a forearm fracture. Appropriate treatment includes each of the following EXCEPT
- (A) physical therapy, employing stress loading
- (B) oral prazosin
- (C) intravenous regional sympathetic block with guanethidine
- (D) stellate ganglion block with 6% phenol
- (E) transcutaneous electrical nerve stimulation
Following induction of general anesthesia, mask ventilation and the initial attempt at intubation is unsuccessful. Which of the following procedures is most appropriate?
- (A) Administration of additional muscle relaxant
- (B) Repeat attempt at intubation
- (C) Fiberoptic intubation
- (D) Retrograde intubation
- (E) Cricothyroidotomy
A 62-year-old patient who is undergoing femoral-popliteal arterial bypass grafting during general anesthesia develops supraventricular tachycardia. Heart rate is 165 bpm and blood pressure is 90/50 mmHg. Which of the following is the LEAST appropriate treatment of the tachycardia?
- (A) Adenosine
- (B) Esmolol
- (C) Phenylephrine
- (D) Procainamide
- (E) Verapamil
The flow-volume loop shown is most likely from a patient with which of the following?
- (A) Bilateral vocal cord paralysis
- (B) Chronic bronchitis
- (C) Tracheal stenosis six months after a previous tracheostomy
- (D) Tumor of the lower trachea
- (E) Normal respiratory status