![](http://www.alamy.com/thumbs/6/93D5DE3D-986B-4C89-A9CF-A77FE4D2DAB0/CT3B4Y.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. Note that there is some bleeding at this stage.
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Keywords: administration, angiogram, angiography, angioplasty, blood, cardiologist, catheter, catheterisation, catheterization, contrast, drug, injections, medium, needles, preparation, procedure, procedures, radial-angiography, radiography, radiology, saline, solution, trans-radial