10 Random Questions
A decreased dose of sodium thiopental is administered to patients in hypovolemic shock primarily because
- (A) acidosis increases the fraction of unionized drug
- (B) delivery of the drug to the brain is increased
- (C) hepatic clearance is decreased
- (D) thiopental is a myocardial depressant
- (E) thiopental is a venous dilator
In treating arterial hypertension in a patient with a head injury, the agent LEAST likely to increase intracranial pressure is
- (A) hydralazine
- (B) nitroprusside
- (C) nitroglycerin
- (D) trimethaphan
- (E) halothane
To detect the delivery of hypoxic gas mixture, the optimal location for an oxygen analyzer in this circle is
- (A) 1
- (B) 2
- (C) 3
- (D) 4
- (E) 5
A patient receives remifentanil 25 mcg just before retrobulbar block with 0.25% bupivacaine 4 mL. Over the next 10 minutes, he develops apnea and loses consciousness. Which of the following is the most likely explanation?
- (A) Effects of remifentanil
- (B) Injection of local anesthetic into cerebrospinal fluid
- (C) Intravascular injection of local anesthetic
- (D) Oculocardiac reflex
- (E) Systemic absorption of local anesthetic
A 50-year-old woman develops stridor 10 hours after undergoing thyroidectomy. The most appropriate management is administration of which of the following drugs?
- (A) Albuterol
- (B) Calcium chloride
- (C) Ipratropium bromide
- (D) Racemic epinephrine
- (E) Triiodothyronine
The effect of neomycin at the neuromuscular junction is
- (A) decreased by depolarizing relaxants
- (B) partially reversed by calcium
- (C) potentiated by anticholinesterases
- (D) prevented by pretreatment with magnesium
- (E) primarily prejunctional
Which of the following antihypertensive drugs is most likely to cause bradycardia?
- (A) Captopril
- (B) Clonidine
- (C) Hydralazine
- (D) Nifedipine
- (E) Phenoxybenzamine
Which of the following is the most appropriate action after an anesthetic vaporizer is tipped?
- (A) Return to the manufacturer for recalibration
- (B) Flush the vaporizer with oxygen at 5 L/min for 24 hours
- (C) Store the vaporizer for 24 hours at room temperature
- (D) Set the vaporizer at low concentration and flush with oxygen at 10 L/min for 30 minutes
- (E) Verify the vaporizer output with mass spectrography
Which of the following statements concerning anesthetic management for MRIs is true?
- (A) ECG wires are associated with patient burns
- (B) Mechanical ventilation of the lungs is not feasible
- (C) Monitors with ferromagnetic components may be used
- (D) Oxygen analysis of inspired gas is inaccurate
- (E) Pulse oximetry is not reliable near the MR scanner
A patient has fever and chills in the recovery room following an abdominal hysterectomy that required the intraoperative administration of whole blood 1 unit. A blood sample drawn in the recovery room shows no free hemoglobin. Subsequently, packed red blood cells 1 unit and fresh frozen plasma 1 unit are administered, and the fever and chills recur. The most likely cause of the fever and chills is
- (A) an allergic-type transfusion reaction
- (B) a hemolytic transfusion reaction to untested antibodies
- (C) bacterial contamination of blood
- (D) a reaction to leukocytes contained in the plasma
- (E) the presence of cold agglutinins in the patient