10 Random Questions
Which of the following chemotherapeutic drugs is a cause of pulmonary fibrosis?
- (A) Bleomycin
- (B) Cisplatin
- (C) Cyclosporine
- (D) Daunorubicin
- (E) Vincristine
The following hemodynamic values are obtained two hours after coronary artery bypass surgery: Cardiac index 1.7 L/min/m2; Pulm Art. Occ. Pressure 22 mmHg; MAP 60 mmHg; Urine volume 0.2 ml/kg/hr. The most appropriate management is
- (A) dopamine infusion
- (B) nitroprusside infusion
- (C) norepinephrine infusion
- (D) volume expansion
- (E) observation without intervention
Halothane
- (A) has no effect on reflex hypoxic pulmonary vasoconstriction
- (B) protects the myocardium from beta-adrenergic stimulation
- (C) has a direct, negative chronotropic effect on the sinoatrial node
- (D) metabolites decrease renal concentrating ability
- (E) is unsafe for use with epinephrine-containing local anesthetics
During general anesthesia with spontaneous ventilation, a patient has a VD/VT of 0.5. Which of the following is most likely to decrease the ratio?
- (A) Acute bronchospasm
- (B) Continuous positive airway pressure
- (C) Decreased tidal volume
- (D) Increased cardiac output
- (E) Pulmonary embolism
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
A programmable DVI pacemaker can be inhibited or inactivated by each of the following EXCEPT
- (A) myopotentials from shivering
- (B) succinylcholine-induced fasciculations
- (C) the ventricular R wave
- (D) the atrial P wave
- (E) placement of a magnet over it
A 13-year-old African American boy has severe abdominal pain after debridement of an open fracture of the lower extremity. His hemoglobin concentration is 10 g/dl and a peripheral blood smear shows elongated crescent-shaped erythrocytes. The most appropriate initial therapy is
- (A) sodium bicarbonate administration
- (B) dopamine infusion
- (C) blood transfusion
- (D) volume loading with crystalloid
- (E) high-dose corticosteroid administration
During attempted awake intubation, the patient gags when the laryngoscope presses on the base of the tongue. Which of the following cranial nerves is responsible for the afferent limb of this reflex?
- (A) Trigeminal
- (B) Facial
- (C) Glossopharyngeal
- (D) Vagus
- (E) Hypoglossal
A 30-kg patient with asthma is receiving general anesthesia and being mechanically ventilated with a measured tidal volume of 300 mL. Increasing the fresh gas flow from 3 L/min to 9 L/min without changing the ventilatory rate or I:E ratio will result in
- (A) decreased physiologic dead space
- (B) increased delivered tidal volume
- (C) increased end-expired carbon dioxide
- (D) unchanged delivered minute volume
- (E) unchanged peak inspiratory pressure
The ECG strip shown is recorded as a patient with a permanent transvenous DDD pacemaker enters the operating room. These changes indicate that the pacemaker is
- (A) sensing the T waves
- (B) sensing the retrograde P waves
- (C) triggering off the intrinsic atrial activity
- (D) malfunctioning in the atrial pacing mechanism
- (E) prematurely stimulating the ventricle