Prolonged respiratory depression following administration of morphine is more likely in patients with chronic renal faillure than in patients with normal kidney function because of
Following axillary block for insertion of an arteriovenous fistula in the forearm, a patient has pain on surgical incision. Which of the following nerves should be blocked to relieve this pain?
In a patient with adult respiratory distress syndrome who is being mechanically ventilated, which of the following findings indicates the most severe disease?
A 64-year-old man with diabetes mellitus well controlled with NPH insulin undergoes lower extremity revascularization. Following administration of protamine 10 mg, the patient has facial flushing and blood pressure of 60/30 mmHg. The most appropriate initial step in management is administration of which of the following drugs?
A 40-year-old woman receives alfentanil 75 mcg/kg followed by an infusion of 1.5 mcg/kg/min for a one-hour cholecystectomy and cholangiogram. This regimen could be associated with each of the following EXCEPT
A 75-kg, 45-year-old patient with quadriplegia at the level of C6 is scheduled for elective cholecystectomy. Pulmonary function tests show an FVC of 2.4 L and an FEV, of 1.2 L. Which of the following is the most appropriate conclusion based on these findings?
(A) Intercostal muscle function is normal
(B) SpO, will be 80% or less while breathing room air
(C) Total lung capacity is normal
(D) The patient has chronic obstructive pulmonary disease
Which of the following is characteristic of low back pain associated with myofascial pain syndrome but not of pain associated with a herniated lumbar disk?
(A) Loss of reflexes in the lower extremities
(B) Pain along the distribution of nerve roots
(C) Responsiveness to epidural corticosteroids
(D) Sensitivity to injection at trigger points
(E) Trophic alteration in the sympathetic nervous system
Ten days after sustaining burns over 40% of his body surface area, a patient requires greater than expected doses of vecuronium for adequate relaxation of skeletal muscle. The primary cause is increased