10 Random Questions
A healthy 24-year-old woman is undergoing knee arthroscopy with spinal anesthesia to a level of T4. Which of the following findings is LEAST likely?
- (A) Decreased heart rate
- (B) Decreased hepatic blood flow
- (C) Decreased mean arterial pressure
- (D) Decreased tidal volume
- (E) Hyperperistalsis
Which of the following effects of catecholamine results in the greatest increase in preload?
- (A) Augmented contractility
- (B) Decreased afterload
- (C) Decreased venous capacitance
- (D) Improved chronotropism
- (E) Increased cardiac output
A 60-year-old man with type II diabetes mellitus requires emergency incision and drainage of a perirectal abscess. Laboratory studies show a serum glucose concentration of 850 mg/dl and a pHa of 7.30. The most appropriate management is administration of regular insulin and which of the following infusions?
- (A) 5% Dextrose in water
- (B) 5% Dextrose in 0.45% saline solution with potassium chloride
- (C) 5% Dextrose in 0.45% saline solution with potassium chloride and mannitol
- (D) Normal saline solution
- (E) Normal saline solution and sodium bicarbonate
The figure describes the uptake of nitrous oxide 75% by individual tissue groups (VRG = vessel-rich group, MG = muscle group, FG = fat group) and their sum (total uptake, TU). Which set of labels accurately describes the curves?
- (A) 1- MG, 2- FG, 3- VRG, 4- TU
- (B) 1- VRG, 2- MG, 3- FG, 4- TU
- (C) 1- FG, 2- MG, 3- TU, 4- VRG
- (D) 1- TU, 2- FG, 3- MG, 4- VRG
- (E) 1- TU, 2- VRG, 3- MG, 4- FG
Immediately following radical prostatectomy, ketorolac administered for analgesia
- (A) aggravates ileus and bladder spasm
- (B) increases platelet adhesion
- (C) is ideally suited for patient-controlled analgesia
- (D) mediates its effects via kappa opioid receptors
- (E) produces cyclooxygenase inhibition
Ten minutes after induction of anesthesia with thiopental and isoflurane but before incision, a patient's nasopharyngeal temperature has decreased to 35.4°C. Which of the following contributed most to this decrease in temperature?
- (A) Anesthesia-induced block of nonshivering thermogenesis
- (B) Failure to use a warming blanket
- (C) Infusion of room-temperature crystalloid
- (D) Inhalation of room-temperature gases
- (E) Mixing of peripheral and central blood
Which of the following is the most likely effect of intramuscular ketamine used for induction of anesthesia in a 2-year-old child undergoing elective surgery?
- (A) Bronchoconstriction
- (B) Decreased heart rate
- (C) Decreased intracranial pressure
- (D) Increased salivation
- (E) Respiratory depression
During anesthesia, the ventilation/perfusion ratios change
- (A) to preferential ventilation of the dependent portion
- (B) due to cephalad shift of the diaphragm
- (C) by insignificant amounts from that in the awake state
- (D) to preferential perfusion of the superior portion
- (E) from changes in pulmonary compliance
The tracing indicates that the pacemaker generator is
- (A) malfunctioning
- (B) VVT sensing and capturing normally
- (C) VOO sensing and capturing normally
- (D) DVI sensing and capturing normally
- (E) VVI sensing and capturing normally
A 35-year-old woman with severe myasthenia gravis is scheduled for thymectomy. Which of the following preoperative pulmonary function tests is most likely to be normal?
- (A) Forced expiratory volume in 1 second (FEV1)
- (B) Forced vital capacity (FVC)
- (C) FEV1/FVC
- (D) Maximum voluntary ventilation
- (E) Peak inspiratory force