A 20-year-old has a mandatory electrocardiogram (ECG) before participating on a college soccer team and is found to have sinus bradycardia, rate 52. The students blood pressure is 119/76 and denies any health issues. Which action by the nurse is most appropriate?

Tell the student to stop playing immediately if any dyspnea occurs.

Refer the student to a cardiologist for further diagnostic testing.

Allow the student to participate on the soccer team.

Obtain more detailed information about the student's family health history.

Answer and Explanation

The Correct Answer is C

A. It is appropriate to monitor for symptoms of bradycardia, but the student is currently asymptomatic.

B. Referral to a cardiologist is not necessary unless the student develops symptoms or other concerning signs.

C. Sinus bradycardia can be normal in young, healthy athletes, especially those who engage in regular physical activity. Since the student is asymptomatic, with no signs of dyspnea, chest pain, or other concerning symptoms, there is no reason to restrict participation in sports.

D. Family history may be helpful, but this is not the immediate priority when the student is asymptomatic.

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Correct Answer is C

Explanation

A. Heparin is an anticoagulant and does not typically cause bronchospasm or wheezing.

B. Morphine can cause respiratory depression but not bronchospasm.

C. Propranolol, a non-selective beta-blocker, can cause bronchospasm, particularly in clients with asthma.

D. Nitroglycerin primarily causes vasodilation and does not typically lead to bronchospasm or wheezing.

A. Na + 134 B. K+ 6.1 C. K+ 2.1 D. Mg+ 18

Correct Answer is C

Explanation

A. Mild hyponatremia (Sodium < 135 mEq/L) typically does not produce distinctive ECG changes. This value is unlikely to correlate with the presence of U waves.

B. Hyperkalemia (Potassium > 5.0 mEq/L) is associated with peaked T waves, widened QRS complexes, and flattened or absent P waves, not U waves.

C. Hypokalemia (Potassium < 3.5 mEq/L) is the primary cause of U waves. A potassium level of 2.1 mEq/L is significantly low and can result in ECG changes, including U waves, ST segment depression, and prolonged QT intervals. These changes reflect altered ventricular repolarization.

D. Hypermagnesemia (Magnesium > 2.5 mEq/L) can cause ECG changes such as prolonged PR and QRS intervals, bradycardia, and heart block. However, such an extreme magnesium level of 18 mEq/L would cause severe toxicity and is not associated with U waves.

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A 20-year-old has a mandatory electrocardiogram (ECG) before participating on a college soccer team and is found to have sinus bradycardia, rate 52. The students blood pressure is 119/76 and denies any health issues. Which action by the nurse is most appropriate?

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Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

The nurse observes the following EKG. Which lab would the nurse correlate with this finding?

Correct Answer is C

Explanation

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