10 Random Questions
A 50-year-old man is scheduled to undergo emergency craniotomy for evacuation of an epidural hematoma. His Glasgow Coma Scale score is 6; heart rate is 54 bpm, and blood pressure is 190/110 mmHg. The most appropriate initial management is administration of which of the following agents?
(A) Atropine
(B) Mannitol
(C) Nimodipine
(D) Sodium nitroprusside
(E) Thiopental
Reveal Answer
ADVANCED
Neuro
Hyperkalemia in response to the administration of an intubating dose of succinylcholine is associated with each of the following disorders EXCEPT
(A) poliomyelitis
(B) multiple sclerosis
(C) hemiplegia
(D) acute cervical cord transection
(E) familial periodic paralysis
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
Measurement of blood pressure with a Doppler device involves
(A) reflection of ultrasound waves off blood elements
(B) detection of oscillations in cuff pressure
(C) amplification of Korotkoff sounds with a miniature microphone
(D) transillumination with a near infrared light
(E) detection of variations in blood vessel diameter
Reveal Answer
BASIC
Equipment & Physics
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
Reveal Answer
During general anesthesia with spontaneous ventilation, a patient has a VD/VT of 0.5. Which of the following is most likely to decrease the ratio?
(A) Acute bronchospasm
(B) Continuous positive airway pressure
(C) Decreased tidal volume
(D) Increased cardiac output
(E) Pulmonary embolism
Reveal Answer
BASIC
Respiratory & Critical Care
Volume-cycled flow generators are preferred over pressure-cycled ventilators in critical care units because they
(A) have a lower compression volume
(B) limit peak airway pressure
(C) maintain constant ventilatory volume with changes in lung compliance
(D) more readily compensate for gas leaks
(E) permit more accurate measurement of the patient's minute volume
Reveal Answer
Which of the following statements concerning the metabolism of atracurium is true?
(A) It is related to cardiac output
(B) It is decreased by hyperthermia
(C) It is unaffected by increasing age
(D) It is decreased by low plasma cholinesterase activity
(E) It is decreased in renal failure
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Compared with similar use in adults, routine use of succinylcholine in children is hazardous because of the increased risk for which of the following?
(A) Anaphylactoid reaction
(B) Phase II blockade
(C) Pseudocholinesterase deficiency
(D) Pulmonary aspiration
(E) Undiagnosed myopathy
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
Pediatric
A 54-year-old man is scheduled for open reduction of a fracture sustained when he jumped from a burning building. The carboxyhemoglobin concentration is 25%. Which of the following is the most reliable indicator of adequate oxygenation during general anesthesia?
(A) PaO2 of 300 mmHg
(B) pH of 7.38 with a PaCO2 of 41 mmHg
(C) Mixed venous PO2 of 45 mmHg
(D) Oxyhemoglobin saturation of 100% measured by co-oximeter
(E) SpO2 of 100% measured by pulse oximeter
Reveal Answer
BASIC
Respiratory & Critical Care
Which of the following is true of both the neonatal and adult airways?
(A) Epiglottic innervation is primarily vagal
(B) Sniffing position requires placement of a pillow under the occiput
(C) The cricoid ring is the narrowest part of the airway
(D) The epiglottis has a relatively similar size and shape
(E) The glottis is located at C3-4
Reveal Answer
ADVANCED
Pediatric