10 Random Questions
Which of the following decreases the risk for burns during electrocauterization?
- (A) Conductive flooring
- (B) Grounding of the patient to the operating table
- (C) Increased resistance at the return electrode
- (D) Isolation of the current output of the electrosurgical unit
- (E) Placement of the return electrode at a distance from the surgical site
During liver transplantation, venovenous bypass from the femoral and portal veins to the axillary vein during cross-clamping of the inferior vena cava
- (A) decreases urine output
- (B) prevents hypothermia
- (C) prevents metabolic acidosis
- (D) requires heparinization
- (E) supports cardiac output
A multi-orifices right heart catheter is being positioned by EKG control prior to sitting craniotomy. The EKG tracing is obtained between the distal tip of the catheter and the right arm lead. The most appropriate next step is to
- (A) leave the catheter in place
- (B) advance the catheter 2 to 3 cm
- (C) withdraw the catheter 2 to 3 cm
- (D) remove the catheter completely
- (E) change polarity of the EKG
A 25-year-old woman is admitted to the hospital in the early stages of labor at term. Initial hematocrit is 33%. Which of the following is the most likely cause of the hematocrit value?
- (A) Decreased erythropoietin activity
- (B) Destruction of erythrocytes by the placenta
- (C) Early placental abruption
- (D) Increased plasma volume
- (E) Iron deficiency
Static lung compliance is decreased by each of the following EXCEPT
- (A) pulmonary emphysema
- (B) congestive heart failure
- (C) adult respiratory distress syndrome
- (D) pulmonary fibrosis
- (E) inhalational anesthesia
The most medial of the following components in the antecubital fossa is the
- (A) brachial artery
- (B) brachioradialis muscle
- (C) cephalic vein
- (D) median nerve
- (E) radial nerve
A 57-year-old man has back pain, a heart rate of 90 bpm, decreased pulse in the left arm, and blood pressure of 200/110 mmHg. During infusion of nitroprusside, heart rate increases to 115 bpm and blood pressure decreases to 140/80 mmHg. The most appropriate management at this time is administration of
- (A) droperidol
- (B) nifedipine
- (C) normal saline solution
- (D) propranolol
- (E) verapamil
Each of the following indicates a hemolytic transfusion reaction in an anesthetized patient EXCEPT
- (A) bleeding diathesis
- (B) wheezing
- (C) hypotension
- (D) hemoglobinuria
- (E) decreased serum haptoglobin concentration
During anesthesia with nitrous oxide, oxygen, and a relaxant, the patient's lungs are being mechanically ventilated and there is a heated humidifier in the circuit. The most likely cause of an apparent increase in inspired oxygen concentration is
- (A) a hole in the ventilator bellows
- (B) backflow of fresh gas because of resistance in the humidifier
- (C) decreased oxygen utilization by the patient
- (D) heat damage to the oxygen sensor
- (E) water condensation on the oxygen sensor
A 30-year-old man receives spinal anesthesia to the level of T4. Ten minutes later, heart rate and blood pressure abruptly decrease to 30 bpm and 60/25 mmHg, respectively. The most appropriate management is administration of which of the following drugs?
- (A) Atropine
- (B) Epinephrine
- (C) Isoproterenol
- (D) Metaraminol
- (E) Phenylephrine