Scheduled to undergo a kidney function measurement test as part of standard care.
Written informed consent.
You may not be if
History of hypersensitivity to iodinated contrast media or one of the excipients in the formulation of iohexol (trometamol, sodium calcium edetate, hydrochloric acid).
Subjects with (suspected or known) thyrotoxicosis.
Pregnant women and women of child-bearing potential who are not using reliable contraception.
Patients who are unlikely to comply to the trial's procedure (non-compliance).