Okay,so  ventricular rate means the frequency of heart beat,66 is normal,maybe a bit low,but that's okay.  Your RR interval is just a bit long,but that can be a result of your 66 beat/min heartbeat.  PR interval is okay,maybe a bit short.  QRS duration is just perfect,it's normally 80.  QTc interval is okay. (I'ts counted from … Read more

Yes of course, because the white blood cells are responsible for the elimination of stuff that cause the infections or anything else that is not good for the body. So in case of infection,inflammation,tumors,etc. The wbc can increase.