Page 55 - ECG dr shamol_Slide
P. 55

P wave --- Indicate depolarization of  atria







  Anatomy of P wave
                                                                                                  RA
                                                                                                                     LA

  • Height and wide : 2.5  X 2.5 mm



  P may be
                                                                                          Cause of absent p
                        •Normal

                                                                                                        •Atrial fribrillation ave
                        • Tall                                                                          •Atrial flutter


                        • Notch / wide                                                                  •SVT
                                                                                                        •VT

                        • Absence                                                                       •Ventricular ectopic

                                                                                                        •Hyper kalaemia
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