Table 3.

Practical concise recommendations for the clinicians

Type of ICM intervention	At-risk group	Action
Intravenous ICM	eGFR < 30 ml/min	Re-analyse the necessity of ICM administration Check for metformin – withdraw Hydrate the patient if clinically indicated Interval of 48 hours between consecutive ICM administrations For in-patients, check eGFR 48-72 hours following ICM administration For outpatients, check eGFR in case of worsening of the clinical status following ICM administration
Intraarterial ICM with a first-pass exposure	eGFR < 40 ml/min	As above
Intraarterial ICM with a second-pass exposure	eGFR < 30 ml/min	As above
The gadolinium-based procedure with the lowest-risk media	None	None