Procedures: the patient was brought to the cardiac catheterization laboratory in the fasting state.The right wrist was prepped with chloraprep and draped in the usual sterile fashion and anesthetized using 1% lidocaine.Using the front wall technique in the standard fashion with a 0.021 radial needle, a 6 fr slender glidesheath introducer was inserted into the right radial artery and 2.5mg of verapamil and 100mcg of nitroglycerin was given intra-arterially.Heparin 3700 units was given intravenously.Coronary angiography was performed via the right radial artery using a fl3.5-5 fr, ima-5 fr catheters.Diagnostic catheter engagement was difficult with an ar mod-5 fr catheter.
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