The nurse notes that a client's cardiac monitor shows that every other beat is earlier than expected, has no visible P wave, and has a QRS complex that is wide and bizarre in shape. How will the nurse document the rhythm?
Ventricular tachycardia
Multifocal premature ventricular contractions
Ventricular couplets
Ventricular bigeminy
The Correct Answer is D
A. Ventricular tachycardia is a run of three or more consecutive ventricular beats at a rapid rate, not every other beat.
B. Multifocal premature ventricular contractions (PVCs) arise from different ventricular foci and have different shapes, but this scenario describes uniform shape and consistent pattern.
C. Ventricular couplets are two consecutive PVCs, not a pattern where every other beat is abnormal.
D. Ventricular bigeminy is the correct term for a rhythm in which every other beat is a premature ventricular contraction (PVC). These PVCs typically have no visible P wave and a wide, bizarre QRS complex, matching the description given.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Mitral valve prolapse often requires no treatment or is managed with medications; balloon valvuloplasty is not typically used.
B. Aortic regurgitation usually requires surgical valve replacement rather than valvuloplasty.
C. Mitral regurgitation involves backward blood flow and is generally treated with valve repair or replacement, not balloon valvuloplasty.
D. Mitral stenosis is most commonly treated with balloon valvuloplasty, especially in clients with rheumatic heart disease. This procedure helps open a narrowed mitral valve by inflating a balloon within the valve to improve blood flow.
Correct Answer is B
Explanation
A. An atrial rhythm regular and ventricular rhythm irregular would suggest an arrhythmia such as atrial fibrillation or flutter with variable conduction—not sinus tachycardia.
B. In sinus tachycardia, the rhythm is regular, the P:QRS ratio is 1:1, meaning each P wave is followed by a QRS complex, and the origin is from the sinus node.
C. A 2:1 P:QRS ratio is characteristic of certain types of heart block or atrial flutter—not sinus tachycardia.
D. Irregular ventricular and atrial rhythms are seen in atrial fibrillation or other irregular arrhythmias, not sinus tachycardia.
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