Page 187 - Critical Care Nursing Demystified
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172        CRITICAL CARE NURSING  DeMYSTIFIED


                               •   QRS
                               •   ST segment

                               •   T wave
                               •   QT interval
                               Now let us talk about what these mean and what they look like (see Figure 4–4A
                            and 4–4B and Table 4–4).








                                                               ST segment







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                                                                           T
                                                                          wave
                                                    P
                                                   wave





                                                            Q

                                                              S








                                                                                       Isoelectric
                                                                                       line
                                                           QRS
                                                   PRI

                                                                   QTI
                            FIGURE 4–4A  •  ECG waveforms.
   182   183   184   185   186   187   188   189   190   191   192