10 Random Questions
Which of the following produces falsely high Sp02?
- (A) Carboxyhemoglobin
- (B) Fetal hemoglobin
- (C) Hematocrit less than 20%
- (D) Indigo carmine
- (E) Methylene blue
The trend plot shows end-tidal gases measured during a radical neck dissection. The event occurring at A is most likely
- (A) acute hypotension
- (B) endobronchial intubation
- (C) kinking of the endotracheal tube
- (D) rupture of the endotracheal cuff
- (E) venous air embolism
After termination of an inhalation anesthetic, patient-controlled analgesia will
- (A) be effective without a loading dose of opioid if started in the immediate postanesthetic period
- (B) be associated with greater analgesic requirements than conventional intramuscular opioid techniques
- (C) cause addiction or dependence to opioids if continued for more than 72 hours
- (D) produce less patient satisfaction than intermittent intravenous administration of opioids
- (E) show a diurnal variation in analgesic requirement
The primary purpose of denitrogenation prior to anesthetic induction is to
- (A) blunt hypoxic pulmonary vasoconstriction
- (B) improve ventilation and perfusion matching
- (C) increase contribution of second gas effect to rate of induction
- (D) increase oxygen reserve in the functional residual capacity
- (E) maximize arterial oxygen content
During postoperative indirect laryngoscopy, the vocal cords appear symmetric during quiet breathing and approximate to the left of midline during phonation. The most likely cause is
- (A) pure abductor paralysis of the left cord
- (B) pure abductor paralysis of the right cord
- (C) abductor and adductor paralysis of the left cord
- (D) abductor and adductor paralysis of the right cord
- (E) adductor paralysis of both cords
Which of the following opioids is vagolytic?
- (A) Morphine
- (B) Meperidine
- (C) Sufentanil
- (D) Nalbuphine
- (E) Alfentanil
Prompt control of seizures induced by bupivacaine is necessary because
- (A) cerebral metabolic rate for oxygen increases more than cerebral blood flow
- (B) cerebral blood flow is increased
- (C) bupivacaine decreases aerobic cerebral metabolism
- (D) cardiac failure may occur
- (E) ventilation may be impaired
In patients who have undergone cardiopulmonary bypass, administration of milrinone is most likely to result in an increase in which of the following?
- (A) Arterial blood pressure
- (B) Heart rate
- (C) Pulmonary capillary wedge pressure
- (D) Stroke volume
- (E) Systemic vascular resistance
During therapy for eclampsia, toxic blood levels of magnesium sulfate can be distinguished from therapeutic levels by the presence of
- (A) diminished knee jerk reflex
- (B) a widened QRS complex on EKG
- (C) fetal tachycardia
- (D) maternal drowsiness
- (E) uterine rigidity
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