What Is Heart Ablation? Heart ablation, or cardiac ablation, is a surgical procedure that is used to correct abnormal heart rhythms. Catheter tubes are used to correct structural heart problems that prevent normal heart rhythms. Malfunctioning heart tissue is scarred or destroyed.
By Anne Marie Helmenstine, Ph.D. Dilute Definition: a solution containing a relatively small quantity of solute as compared with the amount of solvent. This term is the opposite of 'concentrated'.
Recently, weâve seen a lot of drug test results come back as dilute. We usually see results of dilute negative, but occasionally, weâll see one that is a dilute positive. Basically, what a dilute result means is that the donor has drank an unusual amount of water prior to their urine drug screen.e usually see results of dilute negative, but occasionally, weâll see one that is a dilute positive. Basically, what a dilute result means is that the donor has drank an unusual amount of water prior to their urine drug screen.