blood quinidine metabolism measurement retinal uptake index of quinidine 2019-05-22T16:37:55Z CMO:0003187 PMID:24985475 RUI of quinidine This is a calculated measurement in which the amount of quinidine in the retina 15 seconds after an injection of quinidine into the carotid artery is divided by the injected amount of quinidine and presented as a percentage. VT:0002792 clinical_measurement_ontology percentage of injected quinidine found in retina sjwang