A nurse is collecting data from a client who has leukemia. Which of the following findings has the highest priority?

A. Increased premature ventricular contractions along with symptoms of anxiety and shortness of breath may indicate worsening cardiac function or an acute cardiac event, necessitating immediate medical attention.
B. Oxygen therapy may help alleviate symptoms of shortness of breath and improve oxygenation in patients experiencing cardiac symptoms.
C. These diagnostic tests can provide valuable information about cardiac function and any potential myocardial damage or ischemia, helping guide further treatment and management.
D. The modified Trendelenburg position may increase cardiac workload, which is not beneficial in the case of PVCs.
E. The patient should not be left alone due to the need for ongoing assessment and potential rapid intervention. Furthermore, leaving them alone could worsen their anxiety.
F. Elevating the head of the bed can aid in breathing and comfort, reducing the sensation of breathlessness.

A. Digoxin typically decreases the heart rate by increasing vagal tone and reducing conduction through the atrioventricular node.
B. Digoxin may have minimal effects on blood pressure, primarily by improving cardiac output in patients with heart failure, but its primary action is on cardiac contractility and rhythm.
C. Digoxin has a negative chronotropic effect, meaning it slows the heart rate by increasing parasympathetic tone and decreasing conduction through the atrioventricular node.
D. Digoxin has a positive inotropic effect, meaning it increases the force of cardiac contractions, which can be beneficial in patients with heart failure.
E. Digoxin can suppress ectopic beats (abnormal heart rhythms originating outside the sinoatrial node) by slowing conduction through the atrioventricular node and enhancing vagal tone