| R-banding | See: R-banding stain. (05 Mar 2000) |
|---|---|
| R-banding stain | <technique> A reverse Giemsa chromosome banding method that produces bands complementary to G-bands; induced by treatment with high temperature, low pH, or acridine orange staining; often used together with G-banding on human karyotype to determine whether there are deletions. (05 Mar 2000) |
| R-on-T phenomenon | A premature ventricular (QRS) complex in the electrocardiogram interrupting the T wave of the preceding beat; often predisposes to serious ventricular arrhythmias. (05 Mar 2000) |
| R-R interval | The time elapsing between two consecutive R waves in the electrocardiogram. (05 Mar 2000) |