10 Random Questions
A 29-year-old man who has been nasotracheally intubated for two weeks following a motor vehicle accident has a fever (39C) and a constant headache. Leukocyte count is 18,000/mm3. The most likely cause is
- (A) fractured nasal septum
- (B) retropharyngeal abscess
- (C) maxillary sinusitis
- (D) meningitis
- (E) rhinovirus infection
Each of the following is an effect of electroconvulsive therapy EXCEPT
- (A) increased intracranial blood volume
- (B) increased oxygen consumption
- (C) inhibition of parasympathetic activity
- (D) retrograde amnesia
- (E) stimulation of the sympathetic nervous system
Which of the following drugs administered to a parturient eliminates fetal heart rate variability?
- (A) Atropine
- (B) Ephedrine
- (C) Hydralazine
- (D) Magnesium sulfate
- (E) Terbutaline
Cerebral blood flow is decreased by each of the following EXCEPT
- (A) etomidate
- (B) midazolam
- (C) nitrous oxide
- (D) increased minute ventilation
- (E) positive end-expiratory pressure
A 26-year-old woman is hospitalized in early labor at 38 weeks' gestation. Vaginal bleeding occurred prior to admission. Systemic blood pressure remains 140/80 mmHg during intravenous infusion of fluids. Which of the following factors would contraindicate epidural anesthesia for labor at this time?
- (A) Early fetal heart rate decelerations
- (B) Hematocrit of 29%
- (C) Blood pressure of 110/75 mmHg when sitting
- (D) Platelet count of 100,000/mm3
- (E) Increased respiratory rate
A 64-year-old man is scheduled to have an elective right colon resection under nitrous oxide, oxygen, enflurane anesthesia. Following a myocardial infarction two years ago, a programmable VVI pacemaker was inserted for complete heart block. A pre induction rhythm strip is shown. Based on this EKG finding, the most appropriate action is to
- (A) proceed with induction of anesthesia
- (B) convert the pacemaker to the fixed rate mode
- (C) reprogram the pacemaker to increase R-wave sensitivity
- (D) increase the pacemaker current outpu
- (E) insert a temporary atrioventricular sequential pacemaker
Mismatching of ventilation to perfusion in the lung is greatest in which of the following situations?
- (A) Awake patient, spontaneous ventilation, lateral decubitus position
- (B) Anesthetized patient, controlled ventilation, supine position
- (C) Anesthetized patient, controlled ventilation, lateral decubitus position
- (D) Anesthetized patient, controlled ventilation, sitting position
- (E) Anesthetized patient, spontaneous ventilation, prone position
A 70-kg patient is anesthetized for a craniotomy in the sitting position. Minute ventilation through a circle system is 15 L/min; PetC02 is 65 mmHg. Which of the following is the most likely cause of the increased PetC02?
- (A) Inadequate flow of fresh gas
- (B) Incompetent expiratory valve
- (C) Intubation of the right mainstem bronchus
- (D) Light anesthesia
- (E) Venous air embolism
The induction dose of thiopental should be decreased in each of the following situations EXCEPT
- (A) age greater than 70 years
- (B) cardiogenic shock
- (C) decreased hepatic blood flow
- (D) hypoalbuminemia
- (E) hypothyroidism
In a 65-year-old man, which of the following findings on preoperative pulmonary function testing is associated with the highest risk for respiratory insufficiency following pneumonectomy?
- (A) Maximum voluntary ventilation at 65% of predicted
- (B) Mean pulmonary artery pressure of 28 mmHg
- (C) Predicted postoperative forced expiratory volume in one second (FEV1) of 800 ml
- (D) Residual volume to total lung capacity (RV/TLC) ratio of 0.35
- (E) Vital capacity of 3 liters