NUR.213 - Test 2 Saunders Perfusion
The nurse has just completed education on myocardial infarction (MI) to a group of new nurses. Which statement made by one of the nurses indicates that the teaching has been effective? 1. "Chest pain is caused by tissue hypoxia in the myocardium." 2. "Chest pain is caused by tissue hypoxia in the vessels of the heart." 3. "Chest pain is caused by tissue hypoxia in the parietal pericardium." 4. "Chest pain is caused by tissue hypoxia in the visceral pericardium."
"Chest pain is caused by tissue hypoxia in the myocardium." The myocardial layer of the heart is damaged when a client experiences an MI. This is the middle layer that contains the striated muscle fibers responsible for the contractile force of the heart. The obstruction, which causes the interruption in blood flow and ensuing hypoxia, affects the myocardial layer. The endocardiumis the thin inner layer of cardiac tissue. The parietal pericardium and visceral pericardium are outer layers that protect the heart from injury and infection.
The home health nurse visits a client recovering after an episode of cardiogenic shock secondary to an anterior myocardial infarction (MI) and provides home care instructions to the client. Which statement by the client indicates an understanding of these home care measures? 1. "I exercise every day after breakfast." 2. "I've gained 8 pounds (3.6 kg) since discharge." 3. "I take an antacid when I experience epigastric pain." 4. "I have planned periods of rest at 10:00 a.m. and 3:00 p.m. daily."
"I have planned periods of rest at 10:00 a.m. and 3:00 p.m. daily." The client recovering from an episode of cardiogenic shock secondary to an MI will require a progressive rehabilitation related to physical activity. The heart requires several months to heal from an uncomplicated MI. The complication of cardiogenic shock increases the recovery period for healing. Paced activities with planned rest periods will decrease the chance of experiencing angina or delayed healing. It is best to allow the meal to settle prior to activity in order to improve circulation to the heart during exercise. Epigastric pain or a weight gain of 8 pounds (3.6 kg) is significant and should be reported to the health care provider, at which point follow-up should occur.
A client is scheduled to undergo cardiac catheterization for the first time, and the nurse provides instructions to the client. Which client statement indicates an understanding of the instructions? 1. "It will really hurt when the catheter is first put in." 2. "I will receive general anesthesia for the procedure." 3. "I will have to go to the operating room for this procedure." 4. "I probably will feel tired after the test from lying on a hard x-ray table for a few hours."
"I probably will feel tired after the test from lying on a hard x-ray table for a few hours." It is common for the client to feel fatigued after the cardiac catheterization procedure. A local anesthetic is used, so little to no pain is experienced with catheter insertion. General anesthesia is not used. Other preprocedure teaching points include the fact that the procedure is done in a darkened cardiac catheterization room. The x-ray table is hard and may be tilted periodically, and the procedure may take 1 to 2 hours. The client may feel various sensations with catheter passage and dye injection.
A client who had coronary artery bypass surgery states to the home health nurse, "I get so frustrated. I can't even do my gardening." The nurse then assesses the client for activity level since the surgery. Which client statement indicates a need for further teaching? 1. "I pace my activities throughout the day." 2. "I plan regular rest periods during the day." 3. "I avoid outdoor physical activity during the heat of the day." 4. "I try to walk immediately after lunch, after I've finished my morning housecleaning."
"I try to walk immediately after lunch, after I've finished my morning housecleaning." Exercise is an integral part of the rehabilitation program. It is necessary for optimal physiological functioning and psychological well-being. Postoperative physical rehabilitation must be progressive, with planned periods of rest. Exercise tolerance is judged by the client's response, such as heart rate and endurance. Planning regular rest periods, pacing activities, and avoiding outdoor activities during the heat of the day are appropriate client activities. The correct option lacks planned periods of rest, and the client has grouped too many activities in a brief period of time, which will decrease endurance. Also, exercise after meals can decrease the client's tolerance because of shunting of blood to the gastrointestinal tract for digestion.
The home care nurse has taught a client with a problem of inadequate cardiac output about helpful lifestyle adaptations to promote health. Which statement by the client best demonstrates an understanding of the information provided? 1. "I will eat enough daily fiber to prevent straining at stool." 2. "I will try to exercise vigorously to strengthen my heart muscle." 3. "I will drink 3000 to 3500 mL of fluid daily to promote good kidney function." 4. "Drinking 2 to 3 oz of liquor each night will promote blood flow by enlarging blood vessels."
"I will eat enough daily fiber to prevent straining at stool." Standard home care instructions for a client with this problem include, among others, lifestyle changes such as decreased alcohol intake, avoiding activities that increase the demands on the heart, instituting a bowel regimen to prevent straining and constipation, and maintaining fluid and electrolyte balance. Consuming 3000 to 3500 mL of fluid and exercising vigorously will increase the cardiac workload.
A nursing instructor asks a nursing student to describe the structure and function of the coronary arteries. Which response by the student indicates a need for further teaching on the anatomy and physiology of the heart? 1. "The coronary arteries branch from the aorta." 2. "The coronary arteries supply the heart muscle with blood." 3. "The left coronary artery provides blood for the left atrium and the left ventricle." 4. "The left coronary artery supplies the right atrium and right ventricle with blood."
"The left coronary artery supplies the right atrium and right ventricle with blood." The left coronary artery divides into the anterior descending artery and the circumflex artery, providing blood for the left atrium and left ventricle. The right coronary artery supplies the right atrium and right ventricle. Options 1, 2, and 3 are correct.
The nurse who is auscultating a 56-year-old client's apical heart rate before administering digoxin notes that the heart rate is 52 beats/min. The nurse should make which interpretation of this information? 1. Normal, because of the client's age 2. Abnormal, requiring further assessment 3. Normal, as a result of the effects of digoxin 4. Normal, because this is the reason the client is receiving digoxin
Abnormal, requiring further assessment
A client with myocardial infarction is experiencing new, multiform premature ventricular contractions and short runs of ventricular tachycardia. The nurse plans to have which medication available for immediate use to treat the ventricular tachycardia? 1. Digoxin 2. Verapamil 3. Acebutolol 4. Amiodarone
Amiodarone Amiodarone is an antidysrhythmic that may be used to treat ventricular dysrhythmias. Digoxin is a cardiac glycoside; verapamil is a calcium channel-blocking agent; acebutolol is a beta-adrenergic blocking agent. Digoxin can be used to treat supraventricular dysrhythmias, but is inactive against ventricular dysrhythmias. Verapamil is used to slow the ventricular rate for a client with atrial fibrillation or atrial flutter, or to terminate supraventricular tachycardia. Acebutolol is a beta blocker used to treat dysrhythmias.
The nurse in the medical unit is assigned to provide discharge teaching to a client with a diagnosis of angina pectoris. The nurse is discussing lifestyle changes that are needed to minimize the effects of the disease process. The client continually changes the subject during the teaching session. The nurse interprets that this client's behavior is most likely related to which problem? 1. Anxiety related to the need to make lifestyle changes 2. Boredom resulting from having already learned the material 3. An attempt to ignore or deny the need to make lifestyle changes 4. Lack of understanding of the material provided at the teaching session and embarrassment about asking questions
An attempt to ignore or deny the need to make lifestyle changes Denial is a defense mechanism that allows the client to minimize a threat that may be manifested by refusal to discuss what has happened. Denial is a common early reaction associated with chest discomfort, angina, or myocardial infarction (MI). Anxiety usually is manifested by symptoms of sympathetic nervous system arousal. No data are provided in the question that would lead the nurse to interpret the client's behavior as boredom or as either understanding or not understanding the material provided at the teaching session.
A client with myocardial infarction (MI) has been transferred from the coronary care unit (CCU) to the general medical unit. What activity level should the nurse encourage for the client immediately after transfer? 1. Ad lib activities as tolerated 2. Strict bed rest for 24 hours after transfer 3. Bathroom privileges and self-care activities 4. Unsupervised hallway ambulation for distances up to 200 feet (60 meters)
Bathroom privileges and self-care activities On transfer from CCU to an intermediate care or general medical unit, the client is allowed self-care activities and bathroom privileges. Activities ad lib as tolerated is premature at this time and potentially harmful for this client. It is unnecessary and possibly harmful to limit the client to bed rest. The client should ambulate with supervision in the hall for brief distances, with the distances being gradually increased to 50, 100, and 200 feet (15, 30 and 60 meters).
A client is scheduled for a cardiac catheterization to diagnose the extent of coronary artery disease. The nurse places highest priority on telling the client to report which sensation during the procedure? 1. Chest pain 2. Urge to cough 3. Warm, flushed feeling 4. Pressure at the insertion site
Chest pain The client is taught to report chest pain or any unusual sensations immediately. The client also is told that he or she may be asked to cough or breathe deeply from time to time during the procedure. The client is informed that a warm, flushed feeling may accompany dye injection and is normal. Because a local anesthetic is used, the client is expected to feel pressure at the insertion site.
A client has experienced an episode of pulmonary edema. The nurse determines that the client's respiratory status is improving after this episode if which breath sounds are noted? 1. Rhonchi 2. Wheezes 3. Crackles in the bases 4. Crackles throughout the lung fields
Crackles in the bases Pulmonary edema is characterized by extreme breathlessness, dyspnea, air hunger, and the production of frothy, pink-tinged sputum. As the client's condition improves, the amount of fluid in the alveoli decreases, which may be detected by crackles in the bases. (Clear lung sounds indicate full resolution of the episode.) Rhonchi and wheezes are not associated with pulmonary edema. Auscultation of the lungs reveals crackles throughout the lung fields.
The nurse is listening to a cardiologist explain the results of a cardiac catheterization to a client and family. The health care provider (HCP) tells the client that a blockage is present in the large blood vessel that supplies the anterior wall of the left ventricle. The nurse determines that the blockage is located in which area? 1. Circumflex coronary artery 2. Right coronary artery (RCA) 3. Posterior descending coronary artery (PDA) 4. Left anterior descending coronary artery (LAD)
Left anterior descending coronary artery (LAD) The LAD bifurcates from the left main coronary artery to supply the anterior wall of the left ventricle and a few other structures. The circumflex coronary artery bifurcates from the left coronary artery and supplies the left atrium and the lateral wall of the left ventricle. The RCA supplies the right side of the heart, including the right atrium and right ventricle. The PDA supplies the posterior wall of the heart.
The nurse is performing an assessment on a client with a diagnosis of left-sided heart failure. Which assessment component would elicit specific information regarding the client's left-sided heart function? 1. Listening to lung sounds 2. Palpating for organomegaly 3. Assessing for jugular vein distention 4. Assessing for peripheral and sacral edema
Listening to lung sounds The client with heart failure may present with different symptoms, depending on whether the right or the left side of the heart is failing. Peripheral and sacral edema, jugular vein distention, and organomegaly all are manifestations of problems with right-sided heart function. Lung sounds constitute an accurate indicator of left-sided heart function.
The nurse is teaching a client with cardiomyopathy about home care safety measures. The nurse should address with the client which most important measure to ensure client safety? 1. Assessing pain 2. Administering vasodilators 3. Avoiding over-the-counter (OTC) medications 4. Moving slowly from a sitting to a standing position
Moving slowly from a sitting to a standing position Orthostatic changes can occur in the client with cardiomyopathy as a result of venous return obstruction. Sudden changes in blood pressure may lead to falls. Vasodilators normally are not prescribed for the client with cardiomyopathy. Although important, pain assessment and avoiding OTC medications are not directly related to the issue of safety.
A client is scheduled for a cardiac catheterization using an iodineagent. Which assessment is most critical before the procedure? 1. Intake and output 2. Height and weight 3. Baseline peripheral pulse rates 4. Previous allergy to contrast agents
Previous allergy to contrast agents A cardiac catheterization requires an informed consent because it involves injection of an iodine-based contrast agent into the blood vessel. The risk of allergic reaction and possible anaphylaxis is a concern, and the presence of allergies to previous received contrast agents must be assessed before the procedure. An antihistamine or corticosteroid may be given to a client with a positive history or to prevent a reaction. Although the remaining options are accurate, they are not the most critical preprocedure assessments.
The nurse is caring for a client with a diagnosis of myocardial infarction (MI) and is assisting the client in completing the diet menu. Which beverage should the nurse instruct the client to select from the menu? 1. Tea 2. Cola 3. Coffee 4. Raspberry juice
Raspberry juice A client with a diagnosis of MI should not consume caffeinated beverages. Caffeinated products can produce a vasoconstrictive effect, leading to further cardiac ischemia. Coffee, tea, and cola all contain caffeine and need to be avoided in the client with MI.
A client recovering from an exacerbation of left-sided heart failure is experiencing activity intolerance. Which change in vital signs during activity would be the best indicator that the client is tolerating mild exercise? 1. Oxygen saturation decreased from 96% to 91%. 2. Pulse rate increased from 80 to 104 beats per minute. 3. Blood pressure decreased from 140/86 to 112/72 mm Hg. 4. Respiratory rate increased from 16 to 19 breaths per minute.
Respiratory rate increased from 16 to 19 breaths per minute. Vital signs that remain near baseline indicate good cardiac reserve with exercise. Only the respiratory rate remains within the normal range. In addition, it reflects a minimal increase. A pulse rate increase to a rate more than 100 beats per minute during mild exercise does not show tolerance, nor does a 5% decrease in oxygen saturation levels. In addition, blood pressure decreasing by more than 10 mm Hg is not a sign indicating tolerance of activity.
The nurse notes bilateral 2+ edema in the lower extremities of a client with myocardial infarction who was admitted 2 days ago. Based on this observation, what should the nurse plan to do first? 1. Review intake and output records for the last 2 days. 2. Prescribe daily weights starting on the following morning. 3. Change the time of diuretic administration from morning to evening. 4. Request a sodium restriction of 1 g/day from the health care provider (HCP).
Review intake and output records for the last 2 days. Edema, the accumulation of excess fluid in the interstitial spaces, can be measured by intake greater than output and by a sudden increase in weight. Therefore, the nurse should review intake and output records for the last 2 days. Diuretics should be given in the morning whenever possible to avoid nocturia. Strict sodium restrictions are reserved for clients with severe symptoms.
A client with no history of heart disease has experienced acute myocardial infarction and has been given thrombolytic therapy with tissue plasminogen activator. What assessment finding should the nurse identify as an indicator that the client is experiencing complications of this therapy? 1. Tarry stools 2. Nausea and vomiting 3. Orange-colored urine 4. Decreased urine output
Tarry stools Thrombolytic agents are used to dissolve existing thrombi, and the nurse should monitor the client for obvious or occult signs of bleeding. This includes assessment for obvious bleeding within the gastrointestinal (GI) tract, urinary system, and skin. It also includes Hematest testing of secretions for occult blood. The correct option is the only one that indicates the presence of blood.
The health care provider (HCP) has written a prescription for a client to have an echocardiogram. Which action should the nurse take to prepare the client for the procedure? 1. Questions the client about allergies to iodine or shellfish 2. Has the client sign an informed consent form for an invasive procedure 3. Tells the client that the procedure is painless and takes 30 to 60 minutes 4. Keeps the client on nothing by mouth (NPO) status for 2 hours before the procedure
Tells the client that the procedure is painless and takes 30 to 60 minutes Echocardiography is a noninvasive, risk-free, pain-free test that involves no special preparation. It commonly is done at the bedside or on an outpatient basis. The client must lie quietly for 30 to 60 minutes while the procedure is being performed. It is important to provide adequate information to eliminate unnecessary worry on the part of the client.
The nurse working in a long-term care facility is assessing a client who is experiencing chest pain. The nurse should interpret that the pain is most likely caused by myocardial infarction (MI) on the basis of what assessment finding? 1. The client is not experiencing dyspnea. 2. The client is not experiencing nausea or vomiting. 3. The pain has not been relieved by rest and nitroglycerin tablets. 4. The client says the pain began while she was trying to open a stuck dresser drawer.
The pain has not been relieved by rest and nitroglycerin tablets. The pain of MI is not relieved by rest and nitroglycerin and requires opioid analgesics, such as morphine sulfate, for relief. The pain of angina may radiate to the left shoulder, arm, neck, or jaw. It often is precipitated by exertion or stress, is accompanied by few associated symptoms, and is relieved by rest and nitroglycerin. The pain of MI also may radiate to the left arm, shoulder, jaw, and neck. It typically begins spontaneously, lasts longer than 30 minutes, and frequently is accompanied by associated symptoms (such as nausea, vomiting, dyspnea, diaphoresis, or anxiety).
A client is seen in the emergency department for complaints of chest pain that began 3 hours ago. The nurse should suspect myocardial injury or infarction if which laboratory value comes back elevated? 1. Myoglobin 2. Troponinn 3. C-reactive protein 4. Creatine kinase (CK)
Troponinn Cardiac troponin elevations indicate myocardial injury or infarction. Although the remaining options may also rise, they are not definitive enough to draw a conclusive diagnosis.
A client who has had a myocardial infarction asks the nurse why she should not bear down or strain to ensure having a bowel movement. The nurse provides education to the client based on which physiological concept? 1. Vagus nerve stimulation causes a decrease in heart rate and cardiac contractility. 2. Vagus nerve stimulation causes an increase in heart rate and cardiac contractility. 3. Sympathetic nerve stimulation causes a decrease in heart rate and cardiac contractility. 4. Sympathetic nerve stimulation causes an increase in heart rate and cardiac contractility.
Vagus nerve stimulation causes a decrease in heart rate and cardiac contractility. Bearing down as if straining to have a bowel movement can stimulate a vagal reflex. Stimulation of the vagus nerve causes a decrease in heart rate and cardiac contractility. Stimulation of the sympathetic nervous system has the opposite effect. These two branches of the autonomic nervous system oppose each other to maintain homeostasis.
The nurse is auscultating a 56-year-old adult client's apical heart rate before giving digoxin and notes that the heart rate is 48 beats/minute. Which action should the nurse take? 1. Withhold the digoxin, and re-evaluate the heart rate in 4 hours. 2. Administer half of the prescribed dose to avoid a further decrease in heart rate. 3. Withhold the digoxin, and assess for signs of decreased cardiac output and digoxin toxicity. 4. Administer the digoxin; the heart rate would be considered normal because of the client's age.
Withhold the digoxin, and assess for signs of decreased cardiac output and digoxin toxicity. The normal heart rate is 60 to 100 beats/minute in an adult. If the nurse notes a heart rate that is less than 60 beats/minute, the nurse would not administer the digoxin and would further evaluate the client for signs and symptoms of digoxin toxicity. When clients are bradycardic, they may have symptoms of decreased cardiac output, so this would also be assessed.