10 Random Questions
Which of the following is most likely to occur during mediastinoscopy?
- (A) Chylothorax
- (B) Compression of the innominate artery
- (C) Injury to the superior laryngeal nerve
- (D) Tracheal tear
- (E) Venous air embolism
During controlled ventilation, which of the following will cause an increase in end-tidal carbon dioxide tension with a normal waveform on the capnograph?
- (A) Bronchospasm
- (B) Rapid blood loss
- (C) Ventricular fibrillation
- (D) Endobronchial migration of the endotracheal tube
- (E) Release of a thigh tourniquet
A 22-year-old woman at 33 weeks' gestation has abdominal pain and vaginal bleeding after sustaining blunt trauma to the abdomen. Heart rate is 125 bpm, blood pressure is 98/65 mmHg, and respiratory rate is 20/min. Fetal heart rate is 100 bpm. Which of the following is the most appropriate management?
- (A) Conservative observation and monitoring if fetal immaturity is seen on ultrasound
- (B) Increasing maternal blood pressure with a vasopressor
- (C) Infusion of terbutaline
- (D) Lumbar epidural anesthesia
- (E) Urgent cesarean delivery
The preanesthetic ECG trace (lead II) shown from a 32-year-old woman suggests
- (A) potential for tachyarrhythmia
- (B) need for preanesthetic atropine
- (C) myocardial ischemia
- (D) left bundle branch block
- (E) right ventricular hypertrophy
A 75-year-old woman with significant carotid artery stenosis is scheduled for general anesthesia for repair of a fractured hip. Which of the following is the greatest disadvantage of using propofol as an induction agent in this patient?
- (A) Decreased arterial blood pressure
- (B) Pain during intravenous injection
- (C) Prolonged apnea after induction
- (D) Prolonged awakening
- (E) Prolonged elimination half-life
Which of the following nerves should be blocked for an operation at the medial aspect of the lower leg?
- (A) Femoral
- (B) Sciatic
- (C) Obturator
- (D) Common peroneal
- (E) Tibial
During induced hypotension for clipping of a cerebral aneurysm in a 20-degree head-up position, the arterial pressure transducer should be zero referenced at which level?
- (A) External auditory meatus
- (B) Midaxillary line at the fifth intercostal space
- (C) Sternal notch
- (D) Thyroid cartilage
- (E) Top of the cranium
A 68-year-old woman is scheduled for a mastectomy. She has not taken prescription medications for 24 hours. Preoperative examination shows a heart rate of 104 bpm and blood pressure of 200/105 mmHg. The most likely cause of these findings is omission of which of the following drugs?
- (A) Amiodarone
- (B) Clonidine
- (C) Enalapril
- (D) Hydralazine
- (E) Nifedipine
At a body temperature of 30°C, resistance to blood flow increases because of
- (A) increased hematocrit
- (B) increased plasma fibrinogen concentration
- (C) increased viscosity of blood
- (D) rouleaux formation of red blood cells
- (E) sequestration of platelets in portal circulation
Maternal hyperventilation will result in
- (A) increased umbilical blood flow
- (B) decreased affinity of maternal hemoglobin for oxygen
- (C) decreased maternal and fetal cardiac output
- (D) increased placental transfer of oxygen
- (E) increased fetal cerebral blood flow