10 Random Questions
Compared with the use of epidural bupivacaine 0.25% alone, the addition of fentanyl will result in
(A) increased vagal activity
(B) increased motor block
(C) increased sympathetic block
(D) more rapid onset of analgesia
(E) no change in duration of analgesia
Reveal Answer
Each of the following is an adverse effect of ritodrine used for suppression of labor EXCEPT
(A) dysrhythmias
(B) hyperglycemia
(C) hyperkalemia
(D) hypotension
(E) pulmonary edema
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
OB
Which of the following statements best describes the decrease in functional residual capacity that accompanies the induction of general anesthesia?
(A) It does not change compliance
(B) It is greater with spontaneous ventilation than with controlled ventilation
(C) It is independent of body position
(D) It is not corrected by application of positive end-expiratory pressure
(E) It occurs within the first 10 minutes of anesthesia
Reveal Answer
BASIC
Respiratory & Critical Care
General
A 65-year-old man undergoes prostatectomy in the lithotomy position under spinal anesthesia using bupivacaine 12 mg. Ten hours later, he reports that his left foot is numb. Examination shows decreased pinprick sensation over the lateral dorsal aspect of the left foot; dorsiflexion is limited. Which of the following is the most likely cause?
(A) Cauda equina syndrome
(B) Compression of the common peroneal nerve
(C) Compression of the posterior tibial nerve
(D) L5 nerve root damage
(E) Stretching of the sciatic nerve
Reveal Answer
ADVANCED
Regional & Pain
Blind nasotracheal intubation is contraindicated in the presence of
(A) a basilar skull fracture
(B) a comminuted mandibular fracture
(C) an orbital blow-out fracture
(D) an unstable cervical spine fracture
(E) a zygomatic arch fracture
Reveal Answer
BASIC
Respiratory & Critical Care
Which of the following factors will slow the induction of anesthesia in patients receiving volatile anesthetics?
(A) Addition of 70% nitrous oxide
(B) Increased cardiac output
(C) Increased minute ventilation
(D) Low blood/gas solubility coefficient
(E) Previous pneumonectomy
Reveal Answer
The initial reduction in core temperature during general anesthesia is caused by
(A) ablation of thermoregulatory vasoconstriction
(B) conductive heat loss
(C) evaporative heat loss in the respiratory tract
(D) neuromuscular blockade
(E) redistribution of heat from the core to the periphery
Reveal Answer
Which of the following is the most likely cause of apnea occurring after a retrobulbar block?
(A) Epidural injection
(B) Increased intracranial pressure
(C) Oculopontine reflex
(D) Ophthalmic artery injection
(E) Subarachnoid injection
Reveal Answer
ADVANCED
Regional & Pain
Which of the following can be used as a sole criterion for brain death?
(A) Absence of cerebral blood flow
(B) Absence of doll's eye movements
(C) Fixed, dilated pupils
(D) Isoelectric EEG
(E) Unresponsiveness to all externally applied stimuli
Reveal Answer
ADVANCED
Neuro
During laparotomy for a ruptured spleen, unexplained oozing occurs after infusion of 2 liters of crystalloid and 3 units of blood. The most likely cause is
(A) citrate toxicity
(B) dilutional thrombocytopenia
(C) hemolytic transfusion reaction
(D) labile clotting factor deficiency
(E) leukoagglutinin reaction
Reveal Answer
BASIC
Transfusions & Fluids