10 Random Questions
During the first stage of labor, the pain of uterine contractions and cervical dilatation is transmitted via the spinal cord segments
- (A) T6 to L1
- (B) T6 to S5
- (C) T10 to L1
- (D) T10 to S1
- (E) T10 to S5
Which of the following is more likely to occur with use of trimethaphan to induce hypotension than with use of nitroprusside?
- (A) A predictable decrease in mean arterial pressure
- (B) Increased mixed venous P02
- (C) Increased serum lactate concentration
- (D) Mydriasis
- (E) Reflex tachycardia
An adult patient with atrial fibrillation develops pulseless ventricular tachycardia wfiile undergoing synchronized electirical cardioversion. Which of the following is the most appropriate management?
- (A) Intravenous administration of adenosine
- (B) Intravenous administration of a bolus of lidocaine followed by electrical cardioversion
- (C) Immediate repeat synchronized cardioversion at the same energy level
- (D) Immediate repeat synchronized cardioversion at twice the previous energy level
- (E) Unsynchronized electrical cardioversion
The speed of induction of anesthesia with an inhalational agent is increased by
- (A) decreased cardiac output
- (B) decreased minute ventilation
- (C) increased functional residual capacity
- (D) right-to-left intracardiac shunt
- (E) use of a more soluble agent
Proper handling of oxygen cylinders includes
- (A) maintenance of storage room temperature above 60°F
- (B) separate storage rooms for nitrous oxide and oxygen
- (C) opening the cylinder valve just sufficiently to register tank pressure accurately
- (D) storage in a room with conductive flooring
- (E) opening the cylinder valve briefly before attachment to the anesthesia machine
Which of the following is most effective for maintaining core body temperature in an adult during general anesthesia for foot surgery?
- (A) Heating inspired gas to 28°C
- (B) Warming intravenous fluids to 30°C
- (C) Increasing ambient temperature to 28°C
- (D) Placing a warming blanket beneath the patient
- (E) Placing four 200-watt warming bulbs within 76 cm of the wound
The capnographic tracing is from a 2-month-old infant anesthetized using a pediatric circle system and mask at a fresh gas flow of 4 L/min. The sampling port is in the elbow connector. This tracing indicates
- (A) adequate alveolar ventilation
- (B) exhausted soda lime
- (C) expired halothane concentrations representative of alveolar concentrations
- (D) mixing of inspired and expired gases
- (E) the need to change to a Mapleson D circuit
A computer program for hemodynamic calculations has the following input values: body surface area, arterial blood pressure, heart rate, pulmonary artery occlusion pressure, pulmonary artery pressure, and cardiac output. Each of the following values can be derived with this program EXCEPT
- (A) cardiac index
- (B) stroke volume index
- (C) systemic vascular resistance
- (D) pulmonary vascular resistance
- (E) left ventricular stroke work index
A patient whose trachea is intubated develops partial airway obstruction two hours after induction of fentanyl, nitrous oxide, oxygen anesthesia. The anesthesiologist discontinues the nitrous oxide and controls ventilation, and there is gradual improvement during the next hour. No evidence of a respiratory disorder is found at the conclusion of the anesthetic. Which of the following is most likely?
- (A) The endotracheal tube was in the right mainstem bronchus
- (B) The patient had an unrecognized air embolism
- (C) The patient had a nitrous oxide pneumothorax
- (D) The endotracheal tube cuff narrowed the airway
- (E) The fentanyl induced chest rigidity
When inspired anesthetic gases are humidified
- (A) most particles 1 to 2 microns in size are deposited in the trachea
- (B) respiratory epithelial cilia become less active
- (C) alveolar water vapor pressure is unchanged
- (D) respiratory heat loss is abolished
- (E) sterilization of breathing apparatus is mandatory