blood digoxin metabolism measurement retinal uptake index of digoxin 2019-05-22T16:34:06Z CMO:0003184 PMID:24985475 RUI of digoxin This is a calculated measurement in which the amount of digoxin in retina 15 seconds after an injection of digoxin into the carotid artery is divided by the injected amount of digoxin and presented as a percentage. VT:0002792 clinical_measurement_ontology percentage of injected digoxin found in retina sjwang