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The nurse is working with a patient who had an MI and is now active in rehabilitation. The nurse should teach this patient to cease activity if which of the following occurs?
- A. The patient experiences chest pain, palpitations, or dyspnea
- B. The patient experiences a noticeable increase in heart rate during activity
- C. The patients oxygen saturation level drops below 96%
- D. The patients respiratory rate exceeds 30 breaths/min
Correct Answer: A
Rationale: Any activity or exercise that causes dyspnea and chest pain should be stopped in the patient with CAD. Heart rate must not exceed the target rate, but an increase above resting rate is expected and is therapeutic. In most patients, a respiratory rate that exceeds 30 breaths/min is not problematic. Similarly, oxygen saturation slightly below 96% does not necessitate cessation of activity.
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The public health nurse is participating in a health fair and interviews a patient with a history of hypertension, who is currently smoking one pack of cigarettes per day. She denies any of the most common manifestations of CAD. Based on these data, the nurse would expect the focuses of CAD treatment most likely to be which of the following?
- A. Drug therapy and smoking cessation
- B. Diet and drug therapy
- C. Diet therapy only
- D. Diet therapy and smoking cessation
Correct Answer: D
Rationale: Due to the absence of symptoms, dietary therapy would likely be selected as the first-line treatment for possible CAD. Drug therapy would be determined based on a number of considerations and diagnostics findings, but would not be directly indicated. Smoking cessation is always indicated, regardless of the presence or absence of symptoms.
An adult patient is admitted to the ED with chest pain. The patient states that he had developed unrelieved chest pain that was present for approximately 20 minutes before coming to the hospital. To minimize cardiac damage, the nurse should expect to administer which of the following interventions?
- A. Thrombolytics, oxygen administration, and nonsteroidal anti-inflammatories
- B. Morphine sulphate, oxygen, and bed rest
- C. Oxygen and beta-adrenergic blockers
- D. Bed rest, albuterol nebulizer treatments, and oxygen
Correct Answer: B
Rationale: The patient with suspected MI should immediately receive supplemental oxygen, aspirin, nitroglycerin, and morphine. Morphine sulphate reduces preload and decreases workload of the heart, along with increased oxygen from oxygen therapy and bed rest. With decreased cardiac demand, this provides the best chance of decreasing cardiac damage. NSAIDs and beta-blockers are not normally indicated. Albuterol, which is a medication used to manage asthma and respiratory conditions, will increase the heart rate.
The nurse working on the coronary care unit is caring for a patient with ACS. How can the nurse best meet the patients psychosocial needs?
- A. Reinforce the fact that treatment will be successful
- B. Facilitate a referral to a chaplain or spiritual leader
- C. Increase the patients participation in rehabilitation activities
- D. Directly address the patients anxieties and fears
Correct Answer: D
Rationale: Alleviating anxiety and decreasing fear are important nursing functions that reduce the sympathetic stress response. Referrals to spiritual care may or may not be appropriate, and this does not relieve the nurse of responsibility for addressing the patients psychosocial needs. Treatment is not always successful, and false hope should never be fostered. Participation in rehabilitation may alleviate anxiety for some patients, but it may exacerbate it for others.
The nurse is participating in the care conference for a patient with ACS. What goal should guide the care teams selection of assessments, interventions, and treatments?
- A. Maximizing cardiac output while minimizing heart rate
- B. Decreasing energy expenditure of the myocardium
- C. Balancing myocardial oxygen supply with demand
- D. Increasing the size of the myocardial muscle
Correct Answer: C
Rationale: Balancing myocardial oxygen supply with demand (e.g., as evidenced by the relief of chest pain) is the top priority in the care of the patient with ACS. Treatment is not aimed directly at minimizing heart rate because some patients experience bradycardia. Increasing the size of the myocardium is never a goal. Reducing the myocardiums energy expenditure is often beneficial, but this must be balanced with productivity.
An OR nurse is preparing to assist with a coronary artery bypass graft (CABG). The OR nurse knows that the vessel most commonly used as source for a CABG is what?
- A. Brachial artery
- B. Brachial vein
- C. Femoral artery
- D. Greater saphenous vein
Correct Answer: D
Rationale: The greater saphenous vein is the most commonly used graft site for CABG. The right and left internal mammary arteries, radial arteries, and gastroepiploic artery are other graft sites used, though not as frequently. The femoral artery, brachial artery, and brachial vein are never harvested.