![](http://www.alamy.com/thumbs/6/F7A67EA2-D552-4CF8-B79E-CF4CF7FF1115/CT3B4K.jpg)
The cardiologist again flushes a saline solution through the catheter. Note the characteristic curled tip of the catheter.
The cardiologist inserts a slightly rigid arterial introducer sheath (blunt cannula) over the guide wire into the artery. This acts as a dilator. In this case the introducer has a side-arm.
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Keywords: administration, angiogram, angiography, angioplasty, cardiologist, catheter, catheterisation, catheterization, contrast, drug, injections, medium, needles, preparation, procedure, procedures, radial-angiography, radiography, radiology, saline, solution, trans-radial