10 Random Questions
Which of the following statements concerning variable decelerations of fetal heart rate is true?
(A) It indicates compression of the umbilical cord
(B) It indicates compression of the fetal head
(C) It indicates prematurity
(D) It is obliterated by atropine
(E) It occurs normally following epidural anesthesia
Reveal Answer
Reduction of fire hazards during laser surgery of the airway is best accomplished by use of
(A) continuous mode laser emissions
(B) a nitrous oxide/opioid/relaxant anesthetic technique
(C) a polyvinylchloride endotracheal tube and cuff
(D) topical lidocaine
(E) saline-filled sponges over exposed tissues
Reveal Answer
ADVANCED
Equipment & Physics
General
The most beneficial effect of continuous positive airway pressure in a newborn with respiratory distress syndrome is
(A) increased functional residual capacity
(B) decreased airway resistance
(C) promotion of surfactant formation
(D) increased alveolar PO2
(E) maintenance of functional closure of the foramen ovale
Reveal Answer
ADVANCED
Pediatric
The portion of the infant airway with the smallest cross-sectional area occurs at the level of the
(A) cricoid cartilage
(B) false vocal cords
(C) thoracic inlet
(D) tonsillar pillars
(E) true vocal cords
Reveal Answer
ADVANCED
Pediatric
A healthy 30-year-old woman is undergoing laparoscopy with carbon dioxide insufflation under nitrous oxide 50% in oxygen, isoflurane 0.5%, fentanyl 150 u.g, and controlled ventilation. During the first 15 minutes of the procedure, blood pressure decreases 30%. The most likely cause is
(A) anesthetic overdose
(B) compression of the vena cava
(C) gas embolization
(D) hypercarbia
(E) hypoxemia
Reveal Answer
During craniotomy in the sitting position, end-tidal carbon dioxide tension suddenly decreases. Ventilatory excursion of the chest is normal. Further evaluation is most likely to show a decrease in
(A) alveolar-to-arterial oxygen tension difference
(B) alveolar-to-arterial carbon dioxide tension difference
(C) dead space ventilation
(D) pulmonary artery pressure
(E) pulmonary artery occlusion pressure
Reveal Answer
ADVANCED
Respiratory & Critical Care
Neuro
A 38-year-old woman with hyperthyroidism is undergoing open reduction and internal fixation of a fractured humerus with isoflurane anesthesia. Intraoperatively her heart rate increases to 120 bpm with occasional premature ventricular contractions. The most appropriate therapy at this time is to
(A) discontinue isoflurane
(B) administer edrophonium
(C) administer esmolol
(D) administer lidocaine
(E) administer propylthiouracil
Reveal Answer
ADVANCED
General
Which of the following statements concerning interscalene brachial plexus block is true?
(A) The three trunks of the plexus are in the same fascial plane as the internal jugular vein
(B) Distal spread of anesthetic past the humeral head is accelerated by adduction of the arm
(C) Anesthetic solution can spread up the fascial sheaths to involve the stellate ganglion
(D) Ipsilateral diaphragmatic paralysis results from epidural spread
(E) Rich vascularity in the sheaths promotes rapid vascular uptake of anesthetic
Reveal Answer
ADVANCED
Regional & Pain
Which of the following physiologic changes occurs with immersion in water during extracorporeal shock wave lithotripsy?
(A) Decreased cardiac output
(B) Decreased central venous pressure
(C) Increased expiratory reserve volume
(D) Increased functional residual capacity
(E) Increased stroke volume
Reveal Answer
ADVANCED
General
Numbness and tingling on the lateral aspect of the thigh 24 hours after uneventful vaginal delivery is most likely a complication of
(A) forceps delivery
(B) lithotomy position
(C) pudendal nerve block
(D) lumbar epidural anesthesia
(E) spinal anesthesia
Reveal Answer
ADVANCED
OB