Comparison of normal saline, ringer's lactate, and sodium bicarbonate for prevention of contrast-induced nephropathy in patients with coronary angiography: A randomized double-blind clinical trial

< 0.002). Sodium barcarbonate as fluid had more protective effect than NSL or RL on prevention of CIN in patients undergoing coronary angiography. The risk factors for CIN in our study were higher baseline serum Cr and use of RL as hydration fluid.