Pre-operative prophylaxis for
pheochromocytoma
a) Alpha blockade after beta blocker
b) Beta blockade after alpha blocker
c) Alpha blocker
d) Beta blocker
Correct Answer - B
Answer- B. Beta blockade after alpha blocker
Beta blockers such as propanalol at doses of 10 to 40 mg every 6 to
8 hours are often needed in patients who have persistant
tachycardia and arrhythmias. n-blockers should only be added after
adequate a-blockade and rehydration.
a-adrenergic agonists may be needed in immediate post operative
period to prevent post operative hypotension and cardiovascular
collapse.