Black & Hawks: Medical-Surgical Nursing: Clinical Management for Positive Outcomes, 7th Edition Chapter 60: Management of Clients with Myocardial Infarction MULTIPLE CHOICE 1. After instructing a client with stable angina, the nurse would evaluate that the client has a proper understanding of the condition when the client says a. “My chest pain can occur if I overexert myself.” b. “Angina pain usually feels like being stabbed with a knife.” c. “If I have chest pain, then I’m probably having another heart attack.” d. “Each time I have angina, my heart is damaged.” ANS: a When fixed blockages are present in the coronary arteries, conditions that increase myocardial oxygen demand (e.g., physical exertion, emotion, exposure to cold) may precipitate episodes of angina. DIF: Cognitive Level: Application TOP: Nursing Process Step: Evaluation MSC: NCLEX: Physiological Integrity REF: Text Reference: 1702 2. A client admitted for angina reports experiencing pain of long duration while at rest and also early in the morning. The nurse would recognize this pattern as a. unstable angina. b. nocturnal angina. c. variant angina. d. angina decubitus. ANS: c Variant angina (Prinzmetal’s angina) is chest discomfort that is similar to classic angina but is of longer duration and may occur while at rest. These attacks tend to happen in the early hours of the day. DIF: Cognitive Level: Application REF: Text Reference: 1704 TOP: Nursing Process Step: Assessment MSC: NCLEX: Physiological Integrity 3. When instructing a client in the proper administration of sublingual nitroglycerin (NTG), the nurse would include in the teaching plan that the client should a. store NTG tablets in the refrigerator. b. repeat the dosage every 5 minutes for three times if pain is not relieved. c. assess blood pressure for reactive hypertension after each dose. d. take an aspirin before each dose of NTG. ANS: b Chapter 60: Management of Clients with Myocardial Infarction 2 NTG tablets should be stored at room temperature. If the pain is not relieved after three NTG tablets, each taken 5 minutes apart, the client should take an aspirin and notify the physician. DIF: Cognitive Level: Application REF: Text Reference: 1706 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 4. After a myocardial infarction (MI), a client is receiving continuous intravenous (IV) infusion and has a Swan-Ganz catheter to measure hemodymanic parameters. On assessing a pulmonary capillary wedge pressure (PCWP) of 24 mm Hg, the nurse initially would a. observe for clinical manifestations of respiratory depression. b. monitor the client’s blood pressure. c. reduce the rate of the IV infusion. d. notify the physician. ANS: c The elevated PCWP indicates fluid volume overload. The IV infusion should be slowed initially, the breath sounds assessed, and the physician notified. DIF: REF: TOP: MSC: 5. a. b. c. d. Cognitive Level: Analysis Text Reference: 1721, Nursing Care Plan; Nursing Process Step: Intervention NCLEX: Physiological Integrity As an appropriate breakfast menu for a client with angina, the nurse would suggest bran flakes with skim milk, apple slices, and orange juice. scrambled eggs, whole-wheat toast, and prune juice. oatmeal with skim milk, one bacon slice, and hot tea. French toast with syrup, grapefruit half, and skim milk. ANS: a A high-fiber diet not only may prevent constipation and other intestinal tract ailments, but also may decrease the number and severity of anginal attacks. Diets high in fiber may also lower serum cholesterol and triglyceride levels. DIF: Cognitive Level: Application REF: Text Reference: 1707 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 6. A client presents to the emergency department complaining of chest pain that began 2 hours earlier; the client’s electrocardiogram (ECG) is consistent with acute myocardial infarction. The nurse would know that the standard remedy at this time is a. lidocaine. b. verapamil. c. streptokinase. d. diazepam. ANS: c Elsevier items and derived items © 2005 by Elsevier Inc. Chapter 60: Management of Clients with Myocardial Infarction 3 Clinicians treat acute MI with medications that lyse (dissolve) the clot that forms part of the blockage of the coronary artery. Thrombolytic therapy includes streptokinase, urokinase, tissue plasminogen activator (t-PA, alteplase), anisoylated plasminogen-streptokinase activator complex (APSAC, anistreplase), urokinase plasminogen activator, and the newest agent, reteplase. To be most effective, thrombolytic agents must be given within 3 to 6 hours after the onset of chest pain. DIF: REF: TOP: MSC: 7. a. b. c. d. Cognitive Level: Application Text Reference: 1713, 1714, Integrating Pharmacology Box; Nursing Process Step: Assessment NCLEX: Physiological Integrity The nurse would explain to a client that the most common site for MI is the posterior wall of the left ventricle. anterior wall of the left ventricle near the apex. inferior (diaphragmatic) surface. anterior wall of the right ventricle. ANS: b The most common site for myocardial infarction is the anterior wall of the left ventricle near the apex. Infarction of the anterior left ventricle results from thrombosis of the descending branch of the left coronary artery. DIF: Cognitive Level: Knowledge REF: Text Reference: 1708 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 8. Four hours after the onset of pain from an MI, the nurse would expect an increase in the definitive laboratory study result, which is a. leukocyte count. b. lactate dehydrogenase (LDH). c. alkaline phosphatase (ALP). d. CK-MB. ANS: d Serum levels of CK-MB, an isoenzyme of creatine kinase (CK) found primarily in cardiac muscle, increase 3 to 6 hours after the onset of chest pain, peak in 12 to 18 hours, and return to normal levels in 3 to 4 days. Although the other laboratory values will increase, the levels will not rise as quickly as CK-MB and are not specific for myocardial muscle damage. DIF: Cognitive Level: Application REF: Text Reference: 1711 TOP: Nursing Process Step: Assessment MSC: NCLEX: Physiological Integrity 9. After administering a thrombolytic agent to a client experiencing an acute MI, the nurse would record that the medication has been effective when the client experiences a. elevated serum alkaline phosphatase. Elsevier items and derived items © 2005 by Elsevier Inc. Chapter 60: Management of Clients with Myocardial Infarction 4 b. relief of anxiety. c. presence of frequent PVCs. d. return of blood pressure to baseline. ANS: c Successful reperfusion of the coronary arteries is evidenced by return of the ECG changes to normal; relief of chest pain; presence of reperfusion dysrhythmias, usually sudden onset of frequent premature ventricular contractions (PVCs) or short runs of PVCs; and a rapid, early peak of CK-MB isoenzyme (washout). DIF: REF: TOP: MSC: 10. a. b. c. d. Cognitive Level: Analysis Text Reference: 1714, Integrating Pharmacology Box; Nursing Process Step: Assessment NCLEX: Physiological Integrity When caring for a client immediately after an MI, the nurse’s first priority would be relief of pain. monitoring for presence of dysrhythmias. prevention of embolism. relieving client’s apprehension. ANS: a The first 6 hours after the onset of pain is the crucial time frame for the salvage of the myocardium. Pain control is a priority, usually with IV morphine. Continued pain is a manifestation of myocardial ischemia. Pain also stimulates the autonomic nervous system and preload, increasing myocardial demands. DIF: Cognitive Level: Analysis REF: Text Reference: 1719 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 11. When the nurse notes a run of four premature ventricular contractions (PVCs) on the monitor of a client with a recent MI, the nurse would a. continue observation, watching for a run of six PVCs or more. b. notify the physician immediately. c. administer nitroglycerin. d. change ECG leads. ANS: a The nurse should notify the physician if more than six PVCs occur per minute and the client is symptomatic. DIF: Cognitive Level: Analysis REF: Text Reference: 1714 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 12. The nursing action that would most help to prevent cardiogenic shock in a client after a myocardial infarction is Elsevier items and derived items © 2005 by Elsevier Inc. Chapter 60: Management of Clients with Myocardial Infarction a. b. c. d. 5 administering lidocaine as ordered. maintaining the client flat in bed. limiting fluid intake. administering morphine for pain. ANS: d Shock can be prevented with rapid relief of pain and with sufficient IV fluids to prevent circulatory collapse. DIF: Cognitive Level: Application REF: Text Reference: 1716 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 13. When the immediate post-MI client complains about the soft, high-fiber diet, the nurse would inform the client that the pupose of such a diet is to a. maintain bowel health to decrease gas. b. create a high-bulk, soft stool to minimize Valsalva’s maneuver. c. lower cholesterol levels. d. promote easy digestion. ANS: b The stool, being soft, does not require that the client perform Valsalva’s maneuver during evacuation, which causes bradycardia and decreases cardiac output. DIF: REF: TOP: MSC: Cognitive Level: Analysis Text Reference: 1723, Nursing Care Plan; Nursing Process Step: Intervention NCLEX: Physiological Integrity 14. For a 40-year-old client who wants to be more active the first 24 hours after an MI, the nurse could safely suggest that the client a. use the bedside commode for bowel movements. b. take a bath in the shower. c. ambulate in the hall. d. perform gentle isometric exercises. ANS: a The client should be on complete bed rest for the first day or so after MI, with use of the bedside commode for bowel movements. Most clients receive a 2-gram sodium diet. The client who is nauseated can have a liquid diet for the first 24 hours. DIF: REF: TOP: MSC: Cognitive Level: Analysis Text Reference: 1723, Nursing Care Plan; Nursing Process Step: Intervention NCLEX: Physiological Integrity 15. In the discharge teaching plan for a client after MI, the nurse would include that the client should Elsevier items and derived items © 2005 by Elsevier Inc. Chapter 60: Management of Clients with Myocardial Infarction a. b. c. d. 6 resume sexual intercourse in 3 months. begin walking for short periods every day. take 1 aspirin every 8 hours as ordered. continue previous lifestyle when ready. ANS: b The physician may allow sexual intercourse 4 to 8 weeks after an MI. The nurse should encourage frequent walks; the walking program aims for a goal of 2 miles in less than 60 minutes. After an acute MI, many clients are instructed to take 1 aspirin daily. DIF: Cognitive Level: Application REF: Text Reference: 1727 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 16. The nurse would remind a client that the cause of sudden death after myocardial infarction is usually a. dysrhythmias. b. congestive heart failure. c. myocardial ischemia. d. stroke. ANS: a Dysrhythmias are the major cause of death after an MI (40% to 50% of deaths). Ectopic rhythms arise in or near the borders of intensely ischemic and damaged myocardial tissues. DIF: Cognitive Level: Knowledge REF: Text Reference: 1716 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 17. The nurse would explain to a client that increased levels of troponin T, the enzyme indicating myocardial damage, are evident within a. 1 to 2 hours after MI pain has started. b. 3 to 6 hours after MI pain has started. c. 7 to 9 hours after MI pain has started. d. 10 to 12 hours after MI pain has started. ANS: b Troponin T is similar to CK-MB, and levels increase within 3 to 6 hours after pain has started; this is more accurate than LDH in confirmation of the acute MI. The level remains elevated for 2 to 3 weeks. DIF: Cognitive Level: Comprehension REF: Text Reference: 1711 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity 18. For a client whose resting pulse rate is 71 per minute, the nurse would check the client’s pulse to ensure that during post-MI activities, the client’s heart rate does not exceed 1. 89 beats/min. Elsevier items and derived items © 2005 by Elsevier Inc. Chapter 60: Management of Clients with Myocardial Infarction 2. 96 beats/min. 3. 101 beats/min. 4. 112 beats/min. ANS: a The post-MI activity of a client should not cause the pulse to rise above 25% of the resting heart rate: 71 0.25 = 17.75; 71 + 17.75 = 88.75, or 89 beats/min. DIF: Cognitive Level: Analysis REF: Text Reference: 1718 TOP: Nursing Process Step: Intervention MSC: NCLEX: Physiological Integrity Elsevier items and derived items © 2005 by Elsevier Inc. 7