A patient has a normal QRS complex on an electrocardiogram however there is an inverted P wave. The nurse realizes this patient is demonstrating which of the following?
1. atrial fibrillation
2. atrial flutter
3. junctional dysrhythmia
4. supraventricular tachycardia
3
Rationale: With a junctional dysrhythmia, the ventricles usually are depolarized in a downward fashion, so the QRS complex appears normal. The atria are depolarized in an abnormal manner so the P wave can be inverted. Inverted P waves and normal QRS complexes are not associated with atrial flutter, atrial fibrillation, or supraventricular tachycardia.
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