A 70-kg, 50-year-old man is scheduled for muscle flap closure of a decubitus ulcer over the sacrum. He has been quadriplegic at the level of C6-7 for six years. Which of the following is most likely to result from subarachnoid anesthesia with tetracaine 10 mg for this procedure?
Which of the following is the most likely finding in the affected extremity during the acute stage of reflex sympathetic dystrophy?
(A) Dermatomal distribution of pain
(B) Hypesthesia
(C) Increased growth of hair and nails
(D) Localized edema
(E) Radiographic evidence of osteoporosis
D
A 30-year-old woman underwent emergency cesarean delivery under general anesthesia at 36 weeks' gestation because of preeclampsia. Two hours after the operation, she is still intubated and apneic and cannot be aroused. Deep tendon reflexes are 1+. With mechanical ventilation at an FiO2 of 0.4, PaO2 is 130 mmHg, PaCO2 is 32 mmHg, pH is 7.45, and base excess is -0.6. The most likely cause is
A patient has an anterior neck injury, hoarseness, labored respirations, subcutaneous emphysema, and laryngeal crepitus following a motor vehicle accident. Which of the following is the best method of securing the airway in this situation?
(A) Blind nasotracheal intubation
(B) Lightwand intubation
(C) Retrograde wire-guided intubation
(D) Tracheostomy
(E) Transtracheal jet ventilation
D
Pulmonary artery diastolic pressure is an unreliable indicator of left ventricular end-diastolic pressure in patients with