10 Random Questions
The supine hypotensive syndrome of pregnancy
- (A) begins at 32 weeks' gestation
- (B) causes fetal distress by aortocaval compression
- (C) is corrected by Trendelenburg's position
- (D) is less likely following subarachnoid block than epidural block
- (E) occurs in 90% of supine women at 38 to 40 weeks' gestation
Which of the following statements concerning the check valve of the common gas outlet on an anesthesia gas machine is true?
- (A) It prevents backflow into vaporizers
- (B) It prevents delivery of a hypoxic mixture
- (C) It prevents rebreathing
- (D) It is located downstream from the oxygen flush valve
- (E) It is required for proper functioning of the proportioning system
The pin index system
- (A) is not used in central pipeline connections
- (B) requires aligning four pins with four holes
- (C) is used on all sizes of medical gas cylinders
- (D) has been replaced by color coding of gas cylinders
- (E) prevents overfilling of gas cylinders
During uncomplicated mask induction with halothane and 50% nitrous oxide in oxygen in a 6-month-old infant with a large ventricular septal defect and valvular pulmonic stenosis, SpO2 decreases from 85% (room air) to 60%; heart rate is 100 bpm and blood pressure is 62/40 mmHg. The most appropriate management is to
- (A) administer atropine
- (B) administer phenylephrine
- (C) administer propranolol
- (D) increase anesthetic depth
- (E) intubate the trachea
Which of the following is most indicative of reflex sympathetic dystrophy?
- (A) Dry skin
- (B) Dull pain that improves with movement
- (C) Fasciculations
- (D) Motor weakness
- (E) Pallor and cyanosis
Increasing preload, systemic vascular resistance and heart rate will best maintain hemodynamic stability in patients with
- (A) aortic stenosis
- (B) asymmetric septal hypertrophy (IHSS)
- (C) cardiac tamponade
- (D) mitral regurgitation
- (E) mitral stenosis
Which of the following statements concerning hyperkalemia after succinylcholine administration to a patient with a spinal cord injury is true?
- (A) It is unlikely to occur if the lesion is located below T6
- (B) It is unlikely to occur within 24 hours of the injury
- (C) It is unlikely to occur more than 60 days after the initial injury
- (D) It is prevented by pretreatment with small doses of a nondepolarizing agent
- (E) It is decreased in magnitude by pretreatment with calcium chloride
A 57-year-old man who weighs 150 kg and is 170 cm (67 in) tall is scheduled for cholecystectomy. He has a 100 pack-year smoking history. Which of the following findings on pulmonary function testing are most likely?
Inhalation induction of anesthesia is more rapid in a 6-month-old infant than in an adult because infants have
- (A) greater ratio of alveolar ventilation to functional residual capacity
- (B) greater ratio of blood volume to body weight
- (C) greater solubility of anesthetic in blood
- (D) lower anesthetic requirement
- (E) lower distribution of cardiac output to vessel-rich organs
Addition of 20 cm H2O positive end-expiratory pressure to a patient receiving controlled mechanical ventilation decreases cardiac output and left ventricular function by
- (A) increasing right ventricular preload
- (B) increasing right ventricular afterload
- (C) increasing left ventricular preload
- (D) increasing left ventricular afterload
- (E) producing myocardial ischemia