Page 54 - AACN Essentials of Critical-Care Nursing Pocket Handbook, Second Edition
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                     Treat underlying cause.  causative.  For frequent sinus arrest  causing hemodynamic  compromise, atropine 0.5 mg IV may increase  heart rate.  for refractory cases.
                  Treatment  Discontinue drugs that may be  Minimize vagal stimulation.  Pacemaker may be necessary





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               Cardiac Rhythms, ECG Characteristics, and Treatment Guide (continued)
                      Rhythm: Irregular due to absence of sinus node discharge.  PR interval: Usually normal when P waves are present. periods of sinus arrest, unless escape beats occur.  conduction through the atria.
                  ECG Characteristics Rate: Usually within normal range, but may be in the bradycardia range. P waves: Present when sinus node is firing and absent during periods of sinus arrest. When present, they precede every QRS complex and are consistent in sh

















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                  Rhythm
                     Sinus arrest
               3.12
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