10 Random Questions
Which of the following postoperative treatments decreases the risk for deep venous thrombosis?
- (A) Blood transfusion
- (B) Epidural anesthesia
- (C) Etomidate
- (D) Ketorolac
- (E) Patient-controlled analgesia
Which of the following EEG findings is expected during maintenance anesthesia with high-dose fentanyl (50 ju-g/kg), nitrous oxide, and oxygen?
- (A) Low-frequency high-voltage activity
- (B) Nondominant hemispheric slowing
- (C) Predominant alpha activity
- (D) Prominent beta activity
- (E) Spindle-shaped bursts
As part of a preoperative evaluation, a patient had a thallium scan showing a "cold spot" over the left ventricle that occurs with moderate exercise and disappears at rest. This most likely indicates
- (A) moderate-sized aneurysm of the left ventricle
- (B) acute myocardial ischemia
- (C) recent myocardial infarction
- (D) old myocardial infarction
- (E) Prinzmetal's variant angina
Pancuronium blocks the bradycardic effect of fentanyl by a direct effect on
- (A) beta-adrenergic receptors
- (B) cardiac muscarinic receptors
- (C) carotid baroreceptors
- (D) central vagal nuclei
- (E) sympathetic ganglia
The ECG strip shown is recorded as a patient with a permanent transvenous DDD pacemaker enters the operating room. These changes indicate that the pacemaker is
- (A) sensing the T waves
- (B) sensing the retrograde P waves
- (C) triggering off the intrinsic atrial activity
- (D) malfunctioning in the atrial pacing mechanism
- (E) prematurely stimulating the ventricle
A 30-kg patient with asthma is receiving general anesthesia and being mechanically ventilated with a measured tidal volume of 300 mL. Increasing the fresh gas flow from 3 L/min to 9 L/min without changing the ventilatory rate or I:E ratio will result in
- (A) decreased physiologic dead space
- (B) increased delivered tidal volume
- (C) increased end-expired carbon dioxide
- (D) unchanged delivered minute volume
- (E) unchanged peak inspiratory pressure
Which of the following drugs increases cerebral blood flow while decreasing cerebral metabolic rate?
- (A) Etomidate
- (B) Fentanyl
- (C) Isoflurane
- (D) Lidocaine
- (E) Midazolam
Diplopia following lumbar puncture with a 25-gauge, 3 1/2-inch needle is the result of
- (A) stretching the abducens nerve
- (B) pressure on the optic nerve
- (C) distortion of the oculomotor nucleus from collapse of the wall of the third ventricle
- (D) the severity of the accompanying headache
- (E) compensatory cerebral swelling
Each of the following factors may lead to erroneous readings using pulse oximetry EXCEPT
- (A) electrocautery
- (B) high cardiac output states
- (C) infrared lights near the sensor
- (D) intravenous dyes
- (E) severe hemodilution
Each of the following is an adverse effect of intranasal administration of cocaine prior to nasotracheal intubation EXCEPT
- (A) complete heart block
- (B) hypertension
- (C) myocardial ischemia
- (D) seizures
- (E) ventricular tachycardia