Nokea
The nurse is evaluating the outcomes of pre-operative teaching with a patient scheduled for a coronary artery bypass graft (CABG) using the internal mammary artery. Which of the following patient statements indicates that additional teaching is needed?
- A. I will have incisions in my leg where they will remove the vein.
- B. They will circulate my blood with a machine during the surgery.
- C. I will need to take an Aspirin a day after the surgery to keep the graft open.
- D. They will use an artery near my heart to bypass the area that is obstructed.
Correct Answer: A
Rationale: When the internal mammary artery is used there is no need to have a saphenous vein removed from the leg. The other statements by the patient are accurate and indicate that the teaching has been effective.
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The nurse is providing teaching to a patient about the use of atenolol in preventing anginal episodes. Which of the following patient statements indicate that the teaching has been effective?
- A. It is important not to suddenly stop taking the atenolol.
- B. Atenolol will increase the strength of my heart muscle.
- C. I can expect to feel short of breath when taking atenolol.
- D. Atenolol will improve the blood flow to my coronary arteries.
Correct Answer: A
Rationale: Patients who have been taking β-blockers can develop intense and frequent angina if the medication is suddenly discontinued. Atenolol decreases myocardial contractility. Shortness of breath that occurs when taking β-blockers for angina may be due to bronchospasm and should be reported to the health care provider. Atenolol works by decreasing myocardial oxygen demand, not by increasing blood flow to the coronary arteries.
The nurse is providing teaching to a patient who has a prescription for transdermal nitroglycerin patches. The patient asks the nurse how often they should remove the previously applied patch. Which of the following information is the basis for the nurse's response?
- A. Every 4 hours while awake
- B. Every 6 hours around the clock
- C. Every 12 hours
- D. Remove at bedtime
Correct Answer: D
Rationale: NTG patches should be applied in the am and removed at bedtime to prevent tolerance.
To assist the patient with coronary artery disease (CAD) in making appropriate dietary changes, which of the following nursing interventions will be most effective?
- A. Instruct the patient that a diet containing no saturated fat and minimal sodium will be necessary.
- B. Emphasize the increased risk for cardiac problems unless the patient makes the dietary changes.
- C. Assist the patient to modify favourite high-fat recipes by using polyunsaturated oils when possible.
- D. Provide the patient with a list of low-sodium, low-cholesterol foods that should be included in the diet.
Correct Answer: C
Rationale: Lifestyle changes are more likely to be successful when consideration is given to the patient's values and preferences. The highest percentage of calories from fat should come from polyunsaturated fats. Although low-sodium and low-cholesterol foods are appropriate, providing the patient with a list alone is not likely to be successful in making dietary changes. Removing saturated fat from the diet completely is not a realistic expectation. Telling the patient about the increased risk without assisting further with strategies for dietary change is unlikely to be successful.
The nurse is administering a fibrinolytic agent to a patient with an acute myocardial infarction. Which of the following assessments should cause the nurse to stop the drug infusion?
- A. Bleeding from the gums
- B. Surface bleeding from the IV site
- C. A decrease in level of consciousness
- D. A non-sustained episode of ventricular tachycardia
Correct Answer: C
Rationale: The change in level of consciousness indicates that the patient may be experiencing intracranial bleeding, a possible complication of fibrinolytic therapy. Bleeding of the gums and prolonged bleeding from IV sites are expected adverse effects of the therapy. The nurse should address these by avoiding any further injuries, but they are not an indication to stop infusion of the fibrinolytic medication. A non-sustained episode of ventricular tachycardia is a common reperfusion dysrhythmia and may indicate that the therapy is effective.
The nurse is caring for a patient with a non-ST-segment-elevation myocardial infarction (NSTEMI) who is receiving heparin. Which of the following information explains the purpose of the heparin?
- A. Platelet aggregation is enhanced by IV heparin infusion.
- B. Heparin will dissolve the clot that is blocking blood flow to the heart.
- C. Coronary artery plaque size and adherence are decreased with heparin.
- D. Heparin will prevent the development of new clots in the coronary arteries.
Correct Answer: D
Rationale: Heparin helps prevent the conversion of fibrinogen to fibrin and decreases coronary artery thrombosis. It does not change coronary artery plaque, dissolve already formed clots, or enhance platelet aggregation.