10 Random Questions
The hemodynamic changes shown would most likely result from infusion of
- (A) dopamine
- (B) epinepherine
- (C) dobutamine
- (D) norepinepherine
- (E) isoproterenol
A healthy 10-kg child is flushed and restless after premedication with meperidine 15 mg and scopolamine 0.2 mg intramuscularly. His skin is warm and dry; temperature is 38°C, pulse is 130 bpm, and blood pressure is 90/60 mmHg. The most likely cause is
- (A) dehydration
- (B) idiosyncratic reaction to meperidine
- (C) malignant hyperthermia
- (D) neuroleptic malignant syndrome
- (E) scopolamine
Which of the following is the most likely cause of the coronary steal phenomenon?
- (A) Idiopathic hypertrophic subaortic stenosis (IHSS)
- (B) Decreased cardiac contractility
- (C) Dilation of coronary arterioles
- (D) Dilation of epicardial coronary arteries
- (E) Increased systemic vascular resistance
If administered epidurally in equipotent doses, which of the following opioids will produce analgesia over the greatest number of dermatomes?
- (A) Fentanyl
- (B) Hydromorphone
- (C) Meperidine
- (D) Morphine
- (E) Sufentanil
A 34-year-old man has hyperkalemia-induced asystole. After initiating cardiopulmonary resuscitation, which of the following is the most appropriate next step in management?
- (A) Administration of atropine
- (B) Administration of calcium chloride
- (C) Administration of sodium bicarbonate
- (D) Transcutaneous pacing
- (E) DC countershock at 200 joules
A 19-year-old man is undergoing inguinal herniorrhaphy. He is anesthetized with a spinal block supplemented with midazolam and fentanyl. During the procedure, he has sudden loss of consciousness, profound hypotension, and bradycardia; systolic pressure is 40 mmHg and heart rate is 30 bpm. Cardiopulmonary resuscitation is started. The most appropriate next step is administration of
- (A) atropine
- (B) ephedrine
- (C) epinephrine
- (D) flumazenil
- (E) naloxone
A 56-year-old woman with pulmonary fibrosis is scheduled for pneumonectomy. Which of the following parameters best predicts potential postoperative functional impairment?
- (A) Exercise tolerance
- (B) Flow-volume loop
- (C) Resting arterial blood gas values
- (D) Unilateral pulmonary artery occlusion pressure
- (E) Vital capacity and FEV,
Which of the following limits the use of nalbuphine for relief of postoperative pain?
- (A) High incidence of nausea and vomiting
- (B) High incidence of delayed respiratory depression
- (C) Potential for inducing seizures with repeated doses
- (D) Relatively low maximal analgesic effect
- (E) Short duration of action
The arterial waveform and EKG shown are from a 60-year-old man with uremia who is the PACU after hip surgery under general anesthesia. The patient is drowsy, extubated, and breathing easily. The most likely diagnosis is
- (A) hypovolemia
- (B) myocardial ischemia
- (C) nontension pneumothorax
- (D) pericardial tamponade
- (E) pulmonary embolus
The second gas effect refers to
- (A) acceleration of rise in alveolar concentration of a gas caused by concomitantly administered nitrous oxide
- (B) change in volatile anesthetic vaporizer output with the addition of nitrous oxide to the carrier gas mixture
- (C) decrease in MAC of a volatile anesthetic by addition of nitrous oxide
- (D) expansion of gas-containing spaces by addition of nitrous oxide
- (E) rapid diffusion of nitrous oxide from pulmonary capillary blood into alveolar gas at the termination of anesthesia