* Hepatitis A facts medical author: Charles Patrick Davis, MD, PhD. 1  Hepatitis A is an inflammatory disease of the liver caused by a virus. 2  The liver stores nutrients and vitamins, helps digest foods, helps prevent infections, and helps remove harmful substances from blood. Hepatitis A is an inflammatory disease of the liver caused by a virus. 2  The liver stores nutrients and vitamins, helps digest foods, helps prevent infections, and helps remove harmful substances from blood. 3  Hepatitis A viruses cause the disease termed hepatitis A.
RSRP does a better job of measuring signal power from a specific sector while potentially excluding noise and interference from other sectors. RSRP levels for usable signal typically range from about -75 dBm close in to an LTE cell site to -120 dBm at the edge of LTE coverage.
The P-R Interval. The first measurement is known as the P-R interval and is measured from the beginning of the upslope of the P wave to the beginning of the QRS wave. This measurement should be 0.12-0.20 seconds, or 3-5 small squares in duration. The second measurement is the width of the QRS which should be less than 3 small squares, or less than 0.12 seconds in duration. Image: Normal Intervals. P-R interval = 0.12 - 0.20 sec (3 - 5 small squares)