Congestive heart failure, or simply heart failure, is progressive and should not be confused with a heart attack, which involves sudden tissue death of the heart muscle. Although heart failure may occur suddenly in some cases, gradual loss of function is more common.
I believe SI it stands for: Sacroiliac Joint Injections Sacroiliac (SI) joint injections are commonly used to determine what is causing back pain. SI joint injections are primarily diagnostic injections, meaning that they help your doctor determine the cause of your back pain but may not provide you with any long-term relief from the pain.
A true root mean square (RMS) multimeter is a measurement device that measures the effective level of alternating current (AC) or voltage.Root mean square is a mathematical term that suggests effective level. Other multimeters may be designed to measure just the average level.he true RMS level is defined as 0.707 of the peak level for a pure sine wave. When the waveform is not a pure sine wave, the relationship between peak and RMS will not be a scale of 1:0.707. Ad. There is a simple relationship between the VDC and the volts root mean square (Vrms).