Communism was seen as a rival of and a threat to western capitalism for most of the 20th century. This rivalry peaked during the Cold War, as the world's two remaining superpowers, the United States and the Soviet Union, polarized most of the world into two camps of nations.
Renal Replacement Therapy (RRT) Overview. Overview of RRT. Renal replacement therapy (RRT) is required when the kidneys are functioning at less than 10â15 percent. Dialysis. People with advanced chronic renal failure (CRF), kidney failure, who have progressed to end-stage renal disease (ESRD) usually require dialysis.
In cardiology, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle.The QT interval represents electrical depolarization and repolarization of the ventricles.ike the R-R interval, the QT interval is dependent on the heart rate in an obvious way (the faster the heart rate the shorter the R-R Interval and QT interval) and may be adjusted to improve the detection of patients at increased risk of ventricular arrhythmia.