10 Random Questions
Which of the following statements concerning opioid dependence in anesthesiologists is true?
- (A) Mortality rate is high
- (B) Deterioration of professional performance is an early sign
- (C) Nalbuphine suppresses signs of withdrawal
- (D) Naltrexone prevents relapse
- (E) Sufentanil is detected by urine screening
During attempted awake intubation, the patient gags when the laryngoscope presses on the base of the tongue. Which of the following cranial nerves is responsible for the afferent limb of this reflex?
- (A) Trigeminal
- (B) Facial
- (C) Glossopharyngeal
- (D) Vagus
- (E) Hypoglossal
Desflurane is delivered using a vaporizer that contains internal heaters because
- (A) heat decreases the drug's viscosity
- (B) heat reduces thermal loss in the patient
- (C) heat increases the drug's oil-gas partition coefficient
- (D) heat prevents fluctuations of vapor pressure
- (E) it does not vaporize adequately at room temperature
Which of the following changes in pulmonary function best explains the more rapid rate of rise of alveolar concentration of volatile anesthetics in pregnant women than in nonpregnant women?
- (A) Decreased functional residual capacity
- (B) Decreased dead space ventilation
- (C) Increased cardiac output
- (D) Increased oxygen consumption
- (E) Increased pulmonary venous admixture
Compared with morphine, a single epidural administration of fentanyl is associated with
- (A) delayed onset of analgesia
- (B) increased incidence of pruritus
- (C) increased incidence of respiratory depression
- (D) longer duration of action
- (E) more restricted segmental spread
A multi-orifices right heart catheter is being positioned by EKG control prior to sitting craniotomy. The EKG tracing is obtained between the distal tip of the catheter and the right arm lead. The most appropriate next step is to
- (A) leave the catheter in place
- (B) advance the catheter 2 to 3 cm
- (C) withdraw the catheter 2 to 3 cm
- (D) remove the catheter completely
- (E) change polarity of the EKG
In the event of a leak in the air flowmeter, which flowmeter arrangement produces the lowest risk of delivering hypoxic gas mixtures?
- (A) Air, O2, N2O
- (B) N2O, O2, Air
- (C) N2O, Air, O2
- (D) O2, Air, N2O
- (E) O2, N2O, Air
When inspired anesthetic gases are humidified
- (A) most particles 1 to 2 microns in size are deposited in the trachea
- (B) respiratory epithelial cilia become less active
- (C) alveolar water vapor pressure is unchanged
- (D) respiratory heat loss is abolished
- (E) sterilization of breathing apparatus is mandatory
The rate of induction with inhalational agents is more rapid in neonates than adults because of a relatively increased
- (A) cardiac output
- (B) cerebral blood flow
- (C) functional residual capacity
- (D) metabolic rate
- (E) minute ventilation
Nitroprusside therapy for hypertension should be discontinued in the presence of
- (A) acute myocardial infarction
- (B) increasing metabolic acidosis
- (C) methemoglobinemia
- (D) mitral regurgitation
- (E) renal failure