11-28-2007, 10:36 AM
4. A 57-year-old man comes to the emergency
department because of an
episode of confusion, nervousness, sweating, and
palpitations 1 hour
ago. He has had four similar episodes over the past 3
weeks; they last 2
to 3 minutes and are relieved by ingesting solid food
or liquids. His
blood pressure is 140/74 mm Hg, pulse is 76/min, and
respirations are
18/min. Examination shows no other abnormalities.
The most appropriate
next step in diagnosis is serum measurement of which
of the following?
A
) Fasting gastrin level
B
) Fasting insulin and glucose levels
C
) Glucagon level
D
) Glucose and somatostatin level
E
) Glucose and vasoactive intestinal