Which of the following drug is used in this test?: (A) Tolazoline, (B) Clonidine, (C) Bismuth, (D) Oxymetazoline
Answer is A. The picture shows Peripheral angiography for which we need vasodilatation. Vasodilatation is produced best by non-selective alpha-blockers, tolazoline is more selective for peripheral vesselsRef: CMDT 2010-Pg 1434