10 Random Questions
The test dose of local anesthetic administered through an epidural needle or catheter should be sufficient to produce
- (A) bradycardia
- (B) seizure activity
- (C) hypotension
- (D) segmental analgesia
- (E) spinal anesthesia
Which of the following drugs has the shortest elimination half-life?
- (A) Diazepam
- (B) Flumazenil
- (C) Flumazepam
- (D) Lorazepam
- (E) Midazolam
During an inguinal hernia repair, a newborn infant will have a larger fluid requirement (in milliliters per kilogram) than an adult because of relatively greater
- (A) insensible water loss
- (B) lean body mass
- (C) metabolic rate
- (D) sodium loss
- (E) third space losses
Prilocaine is NOT recommended for obstetric regional anesthesia because it
- (A) causes fetal methemoglobinemia
- (B) has a very short duration of action
- (C) is not metabolized by the newborn
- (D) is the most toxic of the amide local anesthetics
- (E) produces a longer motor block than sensory block
A middle-aged, 70-kg man with a brain tumor is scheduled for an elective craniotomy. Preoperatively, he is alert but papilledema is present. Anesthesia is induced with thiopental 300 mg and succinylcholine 100 mg, followed by tracheal intubation. Immediately following intubation vigorous bucking occurs. The best immediate management would be to
- (A) administer succinylcholine 100 mg intravenously
- (B) administer fentanyl 500 jug intravenously
- (C) hyperventilate with isoflurane 2%
- (D) administer thiopental 400 mg intravenously
- (E) hyperventilate and administer lidocaine 1 mg/kg intravenously
When compared with a healthy 30-year-old man, which of the following respiratory parameters is decreased in an otherwise healthy 80-year-old man?
- (A) Alveolar to arterial oxygen gradient
- (B) Lung compliance
- (C) Ratio of functional residual capacity to total lung capacity
- (D) Resting tidal volume
- (E) Ventilatory response to carbon dioxide
In the diagram, point "X" represents a patient with severe left ventricular dysfunction. The points labeled 1, 2, and 3 each represent the results of a different therapeutic intervention. Which of the following represents the most likely intervention at each point?
- (A) 1-Dopamine, 2-Furosemide, 3-Nitroprusside
- (B) 1-Dopamine, 2-Nitroprusside, 3-Furosemide
- (C) 1-Furosemide, 2-Dopamine, 3-Nitroprusside
- (D) 1-Nitroprusside, 2-Dopamine, 3-Furosemide
- (E) 1-Nitroprusside, 2-Furosemide, 3-Dopamine
Which of the following statements concerning flumazenil is true?
- (A) Hepatic clearance is low
- (B) It binds irreversibly with the benzodiazepine receptor
- (C) It causes hypertension and tachycardia
- (D) It has a shorter duration of action than midazolam
- (E) It reverses opioid-induced respiratory depression
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
A patient has severe pain after total knee arthroplasty. Systemic opioids are most likely to modify the pain through action at which of the following sites?
- (A) Corpus callosum
- (B) Hippocampus
- (C) Substantia gelatinosa
- (D) Substantia nigra
- (E) Ventral horn of the spinal cord