10 Random Questions
A 65-year-old patient receiving long-term clonidine therapy fails to take it one day before surgery. This would most likely
- (A) be beneficial, since clonidine decreases cardiac output
- (B) be of no consequence due to the long half-life of clonidine
- (C) produce a lower anesthetic requirement than if the drug had been continued
- (D) produce rebound hypertension
- (E) result in seizure activity
Two hours after sustaining extensive burns of the head, neck and chest in a house fire, a patient has stridor and difficulty breathing. The most appropriate management is
- (A) administration of aerosolized epinephrine
- (B) administration of helium and oxygen
- (C) endotracheal intubation
- (D) intravenous injection of dexamethasone
- (E) tracheostomy
Which of the following relationships is indicated by the curve illustrated in the graph shown?
- (A) Intracranial blood volume (X) and intracranial pressure (Y)
- (B) PaCO2 (X) and minute ventilation (Y)
- (C) PaO2 (X) and hemoglobin saturation (Y)
- (D) Preload (X) and stroke volume (Y)
- (E) Systemic arterial pressure (X) and cerebral blood flow (Y)
The plasma concentration of equal doses of a local anesthetic is highest when the site of administration is
- (A) axillary brachial plexus
- (B) caudal
- (C) intercostal
- (D) lumbar epidural
- (E) subcutaneous
A 62-year-old man is undergoing elective coronary artery bypass grafting and aortic valve replacement for three-vessel coronary artery disease and aortic stenosis. Shortly after intubation, heart rate increases from 75 to 100 bpm and blood pressure decreases from 130/70 to 70/40 mmHg with acute, severe ST-segment depression in lead V5. Which of the following is the most appropriate management?
- (A) Crystalloid
- (B) Ephedrine
- (C) Esmolol
- (D) Nitroglycerin
- (E) Phenylephrine
A delay in surgery for 24 to 48 hours for preoperative stabilization and preparation is acceptable in each of the following neonatal conditions EXCEPT
- (A) biliary atresia
- (B) diaphragmatic hernia
- (C) meningomyelocele
- (D) pyloric stenosis
- (E) tracheoesophageal fistula
The adult oxyhemoglobin dissociation curve will resemble that of the fetus in the presence of
- (A) increased 2,3-diphosphoglycerate concentration
- (B) chronic anemia
- (C) hyperthermia
- (D) metabolic alkalemia
- (E) hyperkalemia
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,
In a patient with asthma, which of the following drugs used to treat supraventricular tachycardia is LEAST likely to induce bronchospasm?
- (A) Adenosine
- (B) Edrophonium
- (C) Esmolol
- (D) Propranolol
- (E) Verapamil
Administration of succinylcholine 1 mg/kg to a pregnant woman rarely causes fetal neuromuscular blockade. Which characteristic of succinylcholine best explains this phenomenon?
- (A) High protein binding
- (B) Ionization
- (C) Lack of passive placental diffusion
- (D) Lipid solubility
- (E) Metabolism in the fetal liver