Anesthesia Hub -

10 Random Questions

A 70-kg, 46-year-old man is undergoing clipping of a cerebral aneurysm with nitrous oxide, opioid, relaxant anesthesia. He is otherwise healthy. As the surgeons are about to enter the dura, the brain is noted to be tense and bulging. Heart rate is 100 bpm and mean arterial pressure is 90 mmHg. PaO2 is 120 mmHg, PaCO2 is 23 mmHg, and pH is 7.50. Which of the following should be done immediately?

(A) Hyperventilation to a PaCO2 of 15 to 20 mmHg
(B) Administration of furosemide 20 mg intravenously
(C) Administration of mannitol 0.5 g/kg
(D) Administration of thiopental 250 mg in increments
(E) Addition of halothane 1% to deepen anesthesia

ADVANCED Neuro

Bupivacaine is more likely than lidocaine to cause refractory cardiac arrest because bupivacaine

(A) has a lower rate of plasma clearance
(B) has a secondary blocking effect on cardiac beta,-adrenergic receptors
(C) dissociates more slowly from sodium channels in cardiac muscle
(D) inhibits spontaneous phase 4 depolarization in pacemaker cells
(E) preferentially blocks calcium channels in Purkinje fibers

BASIC Pharmacology & Pharmacokinetics

The best premedication regimen for a known active narcotic addict would include

(A) secobarbital
(B) diazepam
(C) nalbuphine
(D) morphine
(E) droperidol

BASIC Pharmacology & Pharmacokinetics Regional & Pain

During laser microsurgery of the larynx using an endotracheal tube, a fire occurs in the airway. Which of the following is the most appropriate initial management?

(A) Increase FiO2 to 1.0
(B) Instill saline into the endotracheal tube
(C) Perform cricothyroidotomy
(D) Remove the endotracheal tube
(E) Ventilate with air

BASIC Equipment & Physics General

Nausea and vomiting in pediatric outpatients are

(A) directly related to postoperative pain
(B) unrelated to the length of the procedure
(C) eliminated by preoperative administration of droperidol
(D) eliminated by intraoperative nasogastric drainage
(E) more frequent than in adults

ADVANCED Pediatric

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

ADVANCED Pharmacology & Pharmacokinetics OB

A blood sample is taken from a patient whose body temperature is 30°C. In which direction will the pH, PCCX, and P02 change when measured in the blood gas machine at 37°C? (pH, PCO2, PO2)

(A) Increase Decrease Decrease
(B) Decrease Increase Increase
(C) Decrease Increase No change
(D) No change Increase Increase
(E) No change No change Increase

Which of the following differentiates midazolam from diazepam administered intravenously in equipotent doses?

(A) Greater hemodynamic stability
(B) Lack of active metabolites
(C) Less respiratory depression
(D) Longer duration of action
(E) More rapid onset

Which of the following statements concerning pipecuronium is true?

(A) It has a faster onset than pancuronium
(B) It increases systemic vascular resistance
(C) It induces tachycardia
(D) It is eliminated by the kidney
(E) It induces histamine release

BASIC Pharmacology & Pharmacokinetics

Following delivery with pudendal block, a patient requires anesthesia for removal of a retained placenta. The most appropriate anesthetic is

(A) epidural block
(B) ketamine analgesia with midazolam for amnesia
(C) opioid-based general endotracheal anesthetic
(D) potent inhaled general endotracheal anesthetic
(E) subarachnoid block

ADVANCED OB