A nurse is assessing a client who has mitral valve stenosis. Which of the following findings should the nurse expect?

Rationale:
A. While an absent pulse can occur in extreme cases of poor perfusion, it is not typical in atrial fibrillation. In AFib, the heart still contracts, though irregularly, so the pulse is usually detectable.

B. A bounding pulse is strong, forceful, and easily palpable, often seen in conditions like hyperthyroidism, fever, or aortic regurgitation. AFib does not typically produce a bounding pulse; instead, the pulse may feel weak or variable due to irregular ventricular contractions.

C. A regular pulse indicates consistent rhythm and timing between beats. In atrial fibrillation, the atria fire chaotically, leading to an irregularly irregular pulse. A regular pulse is more characteristic of normal sinus rhythm or controlled atrial flutter.

D. Some clients with AFib may have a slower rate, especially if they are on rate-controlling medications (e.g., beta-blockers or calcium channel blockers). However, the hallmark of AFib is irregularity in rhythm, which should be the primary focus of assessment.

Rationale:

A. While pneumonia can cause fever, fatigue, and chest discomfort, it is less likely to cause severe pedal edema, irregular heart rhythms, or palpitations. The presence of edema and irregular heart sounds points toward a cardiac origin rather than a primary pulmonary infection.

B. Fatigue, chest discomfort, irregular heart sounds, pedal edema, and low blood pressure are classic signs of heart failure, particularly in a young adult who may have acute or chronic cardiac dysfunction. Heart failure can also contribute to the development of arrhythmias.

C. COPD primarily presents with chronic cough, dyspnea, and sputum production. While it can strain the heart over time, COPD alone would not account for the acute irregular heart rate, edema, and chest discomfort in this patient.

D. The irregular heart rate (HR 112 bpm) and irregular heart sounds are indicative of atrial fibrillation, which is common in patients with underlying heart disease or heart failure. Atrial fibrillation can also worsen cardiac output, contributing to edema and fatigue.

E. Pulmonary embolism typically presents with acute dyspnea, pleuritic chest pain, tachypnea, and sometimes hemoptysis. Edema and irregular heart rhythms are not primary features, making this less likely than heart failure and atrial fibrillation.