Table of Contents

radiologic contrast media precautions and adverse reactions

see also:

Check hydration, renal function, metformin, allergies, and if the patient is pregnant!

introduction

Mx of patients requiring contrast media

prevention of possible allergic reactions

hypersensitivity pre-medications

reducing risk of nephrotoxicity or lactic acidosis

ensure adequate venous access for the proposed study

always check the patency of the cannula prior to giving contrast, and check that the required infusion rate is deliverable
rapid infusion studies
moderately rapid infusion studies
slower infusion studies

contrast media reactions

direct toxic or osmolar effects

contrast-induced nephrotoxicity causing acute renal failure

lactic acidosis if on metformin

local tissue necrosis due to extravasation

iodide adverse reactions

contrast medium idiosyncratic (including allergic) reactions

risk factors for hypersensitivity

Mx of suspected moderate or severe anaphylaxis

Mx of mild reactions