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'.
To further confuse the issue, there are two types of Dilute Results: Dilute-Negative means that the sample was diluted, but no drugs presented themselves. Dilute-Positive means that there was a positive result, but the laboratory could not confirm it because of the amount of water in the urine.