ratio of change in renal sympathetic nerve activity change in RSNA to change in MAP ratio 2022-07-08T14:10:40Z CMO:0003893 PMID:15458950 This calculated value is the average slope of the curve defined by the change in renal sympathetic nerve activity relative to the change in mean arterial blood pressure over time and/or in response to a change in conditions. change in renal sympathetic nerve activity to change in mean arterial blood pressure ratio clinical_measurement_ontology slaulede