The nurse is educating a client prior to an electrocardiogram (ECG). What is the best explanation regarding the purpose of electrocardiography?

To measure the pumping strength of the heart

To examine the heart's electrical activity

To evaluate coronary artery blood flow

To visualize the cardiac silhouette

Answer and Explanation

The Correct Answer is B

A. While an ECG can provide insight into the function of the heart, it does not directly measure the pumping strength.

B. The primary purpose of an ECG is to assess the electrical activity of the heart. It measures the timing and strength of electrical signals as they move through the heart muscle, which helps diagnose arrhythmias, myocardial infarction, and other cardiac conditions.

C. An ECG does not evaluate coronary artery blood flow. Tests like coronary angiography or stress tests are used for that purpose.

D. An ECG does not provide a visualization of the heart's size or shape, which would be done through imaging methods like a chest X-ray or echocardiogram.

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Correct Answer is C

Explanation

A. Temperature is not directly related to the effects of nitroglycerin or the client’s need for additional doses.

B. While oxygen saturation is important, it does not directly influence the decision to administer nitroglycerin, which primarily works to relieve chest pain by dilating coronary arteries and reducing myocardial oxygen demand.

C. Nitroglycerin is a vasodilator that can lower blood pressure. It is crucial to check the client’s blood pressure before administering another dose of nitroglycerin because excessive drops in blood pressure can lead to dizziness, fainting, or other complications. If the blood pressure is already low, further administration may be contraindicated.

D. Apical pulse rate is important to monitor but is not the most critical cue in this scenario. Nitroglycerin primarily affects blood pressure and coronary circulation rather than directly influencing heart rate.

A. Be careful not to injure the legs or feet B. Wear tight compression stockings as often as possible. C. Try to walk often to increase circulation in the legs, resting if cramping occurs. D. Decrease saturated fats, trans fats, and cholesterol in daily diet E. Apply ice packs to the legs to help relieve pain.

Correct Answer is ["A","C","D"]

Explanation

A. Preventing injury is critical in PAD, as poor circulation makes it more difficult for the body to heal wounds. Injuries or cuts can lead to severe infections or ulcers, which may progress to amputation in severe cases.

B. Wearing tight compression stockings can worsen PAD by restricting blood flow. Loose-fitting stockings or compression socks may be beneficial, but tight stockings should be avoided.

C. Regular walking improves circulation in the legs and can help manage PAD. Resting when cramping occurs allows the muscles to receive blood flow again, reducing the risk of further damage.

D. Reducing intake of saturated fats, trans fats, and cholesterol is essential to prevent further progression of PAD, as these substances contribute to the buildup of plaque in the arteries, leading to narrowing and reduced blood flow.

E. Applying ice to the legs can worsen symptoms of PAD, as it may further restrict blood flow. Heat therapy may be more appropriate for pain relief, but this should be done cautiously to avoid burns or worsening circulatory issues.

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The nurse is educating a client prior to an electrocardiogram (ECG). What is the best explanation regarding the purpose of electrocardiography?

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Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

The nurse is planning to teach a client with peripheral arterial disease about measures to limit disease progression. Which items would the nurse include on a list of suggestions for the client? Select all that apply.

Correct Answer is ["A","C","D"]

Explanation

The nurse teaches a client at risk for coronary artery disease about necessary lifestyle changes. The nurse determines that the client understands the education if the client makes which statements? Select all that apply.

The nurse is educating a client prior to an electrocardiogram (ECG). What is the best explanation regarding the purpose of electrocardiography?

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