10 Random Questions
Which of the following is an effect of hypothermia in neonates?
- (A) Decreased duration of neuromuscular blockade
- (B) Increased narcotic requirements
- (C) Increased pulmonary vascular resistance
- (D) Metabolic alkalosis
- (E) Shivering
Which of the following is decreased by alkalinization of a 1.5% lidocaine solution?
- (A) Concentration of free base
- (B) Dose required for anesthesia
- (C) Duration of anesthesia
- (D) Intracellular concentration of ionized lidocaine
- (E) Time to onset of anesthesia
Myofascial pain is an example of
- (A) a central pain state
- (B) neuropathic pain
- (C) psychogenic pain
- (D) somatic pain
- (E) visceral pain
A 52-year-old woman undergoes facial surgery during general endotracheal anesthesia. The ventilator is set to deliver a tidal volume of 600 ml and a respiratory rate of 10/min at an FiO2 of 1.0. SpO2 is 100%, peak inspiratory pressure is 18 cmH2O, and PetCO2 is 40 mmHg. The surgeon flexes the patient's head so the chin touches the chest. Which of the following findings indicates that endobronchial intubation has NOT occurred?
- (A) Fluctuating capnographic waveform
- (B) Greater expiratory volume than inspiratory volume
- (C) Unchanged SpO2
- (D) Unchanged PetCO2
- (E) Unchanged peak inspiratory pressure
To detect the delivery of a hypoxic gas mixture, the optimal location for an oxygen analyzer in this circle is
- (A) 1
- (B) 2
- (C) 3
- (D) 4
- (E) 5
In a healthy patient receiving an epidural analgesic infusion postoperatively, clear fluid is noted to drip back freely from the epidural catheter. Which of the following findings correctly identifies the associated fluid?
- (A) Precipitation when mixed with an equal volume of pancuronium = local anesthetic
- (B) pH 7.1 = saline solution
- (C) Glucose 120 mg/dl = CSF
- (D) Sodium 130 mEq/L = CSF
- (E) PCO2 51 mmHg = CSF
Which of the following statements concerning the superior laryngeal nerve is true?
- (A) It provides sensory innervation to the subglottic surface of the vocal cord
- (B) It provides sensory innervation to the inferior surface of the epiglottis
- (C) It is a branch of the glossopharyngeal nerve
- (D) It is blocked by injection of anesthetic near the lateral portion of the cricothyroid membrane
- (E) It is the most commonly injured nerve during thyroid surgery
During emergency laparotomy, a patient who has been taking a monoamine oxidase inhibitor for six months develops hypotension despite adequate fluid therapy. The most appropriate management is administration of
- (A) amrinone
- (B) ephedrine
- (C) epinephrine
- (D) isoproterenol
- (E) phenylephrine
Each of the following statements about pheochromocytoma is true EXCEPT:
- (A) Preoperative administration of alpha-adrenergic inhibitors will usually reverse EKG changes due to catecholamine myocarditis
- (B) Preoperative administration of alpha-adrenergic inhibitors decreases operative mortality
- (C) Beta-adrenergic inhibitors should be administered preoperatively only in conjunction with alpha-adrenergic inhibitors
- (D) Vasopressor therapy may be necessary postoperatively for treatment of hypotension
- (E) Nasal congestion is a sign of inadequate alpha-adrenergic block
Which of the following neurophysiologic monitoring modalities is LEAST affected by administration of volatile anesthetic agents?
- (A) Brain stem auditory evoked potentials
- (B) Electroencephalogram
- (C) Motor evoked potentials
- (D) Somatosensory evoked potentials
- (E) Visual evoked potentials