component is the P-wave which represents the contraction and spread of excitation (blue) of the atria (depolarization), see Figure 3 (1). The PQ- is the spread of excitation from the atria to the ventricle, see Figure 3 (2). During QRS complex, the ventricle contracts and spreads ...
took me to get and xray of my heart and lungs to make sure I had no fluid and that everything checked out. We came back to the room and were told that they would be back in a few minutes to do an EKG..normal