CAD - Nursing Case Study
Pathophysiology
• Primary mechanism: Atherosclerosis - This process involves the buildup of fatty deposits, cholesterol, and other substances on the artery walls, forming plaques. These plaques can narrow the coronary arteries, reducing blood flow to the heart muscle and potentially leading to angina or heart attacks.
• Secondary mechanism: Inflammation - Chronic inflammation plays a crucial role in the progression of atherosclerosis. It can destabilize plaques, making them more likely to rupture. A ruptured plaque can trigger the formation of a blood clot, which can further obstruct the artery and worsen blood flow to the heart.
• Key complication: Ischemia - Reduced blood flow from narrowed or blocked coronary arteries can lead to ischemia, where the heart muscle receives insufficient oxygen. This can result in chest pain, shortness of breath, or in severe cases, lead to myocardial infarction (heart attack).
Patient Profile
Demographics:
54-year-old male, office worker
History:
• Key past medical history: Diagnosed with early-stage coronary artery disease (CAD) one year ago, hypertension
• Current medications: Aspirin 81 mg daily, Atorvastatin 10 mg daily, Lisinopril 10 mg daily
• Allergies: No known drug allergies
Current Presentation:
• Chief complaint: Occasional chest discomfort during physical exertion
• Key symptoms: Mild chest pain on exertion, relieved by rest; no shortness of breath, dizziness, or palpitations
• Vital signs: Blood pressure 128/82 mmHg, heart rate 72 bpm, respiratory rate 16 breaths per minute, temperature 98.6°F, oxygen saturation 98% on room air
Section 1
Initial Assessment Findings:
During the nursing assessment, the patient appears well-nourished and in no acute distress. He reports that the chest discomfort is infrequent and typically occurs during activities such as climbing stairs or brisk walking. The pain is described as a mild, pressure-like sensation that resolves within a few minutes of resting. Physical examination reveals clear breath sounds bilaterally, regular heart rate and rhythm without murmurs, and no jugular venous distention or peripheral edema. The patient’s skin is warm and dry, with no cyanosis or diaphoresis observed. A review of systems is unremarkable aside from the occasional chest discomfort.
Laboratory results show a total cholesterol level of 185 mg/dL, LDL cholesterol of 100 mg/dL, and HDL cholesterol of 45 mg/dL. Blood glucose levels are within normal limits, and kidney function tests are unremarkable. An electrocardiogram (ECG) performed at rest shows normal sinus rhythm without any ST-segment changes. The patient’s blood pressure and heart rate remain stable, and he maintains adequate oxygen saturation without supplemental oxygen. These findings suggest that the patient’s CAD is stable, with controlled risk factors.
Given the current assessment, the nursing plan focuses on reinforcing lifestyle modifications to manage CAD risk factors. This includes dietary counseling to reduce saturated fat intake, encouraging regular physical activity within tolerance, and stressing the importance of medication adherence. The nurse also educates the patient on recognizing signs of worsening symptoms, such as increased frequency or intensity of chest pain, and when to seek medical attention. These foundational nursing interventions aim to maintain the patient’s stability and prevent progression of the disease.
Section 2
Response to Interventions:
Several weeks after the initial assessment, the patient returns for a follow-up appointment. During this visit, the nurse conducts a thorough evaluation to assess the patient’s response to the implemented lifestyle modifications and medication regimen. The patient reports that he has been adhering to the dietary changes, reducing his intake of saturated fats, and incorporating more fruits, vegetables, and whole grains into his meals. He mentions that he has been walking for 30 minutes most days of the week, which he finds manageable and enjoyable. As a result of these lifestyle changes, the patient has experienced a slight weight loss of 4 pounds, contributing to his overall cardiovascular health.
Vital signs taken during the visit indicate a blood pressure of 118/76 mmHg and a heart rate of 72 beats per minute, both of which are within the target range. The patient’s oxygen saturation remains stable at 98% on room air. He reports a decrease in the frequency of chest discomfort, noting that it now occurs only occasionally during more vigorous activities, such as climbing several flights of stairs. Follow-up laboratory tests show a slight improvement in lipid profile, with LDL cholesterol reduced to 95 mg/dL and HDL cholesterol increased to 50 mg/dL, reflecting the positive impact of his adherence to lifestyle modifications.
The nurse praises the patient for his efforts and reinforces the importance of maintaining these healthy habits. She also reviews the action plan for managing any potential worsening of symptoms and discusses the importance of regular follow-up appointments to monitor the condition. This positive response to interventions highlights the effectiveness of foundational nursing strategies in managing stable CAD and encourages the patient to continue his proactive approach to health management.
Section 3
Several months later, the patient returns for another follow-up appointment. During this visit, the nurse notes a change in the patient's status, as he reports experiencing more frequent episodes of chest discomfort, now occurring during moderate activities such as brisk walking. Although these episodes are brief and resolve with rest, they are more frequent than before, prompting further evaluation. The nurse conducts a detailed assessment, noting that the patient's vital signs remain stable with a blood pressure of 120/78 mmHg and a heart rate of 74 beats per minute. However, the patient mentions feeling more fatigued than usual, which has impacted his ability to maintain his exercise routine consistently.
The nurse orders an updated set of laboratory tests and an electrocardiogram (ECG) to explore these new symptoms further. The ECG results show some mild changes suggestive of ischemia, warranting closer monitoring. Laboratory tests indicate a slight elevation in the patient's LDL cholesterol, now at 105 mg/dL. While still within a manageable range, this rise suggests a potential need for adjustment in the patient's medication regimen or further dietary counseling. The nurse discusses these findings with the patient, emphasizing the importance of promptly addressing these changes to prevent potential complications.
With the guidance of the healthcare team, the patient agrees to a slight increase in his current medication dosage and to meet with a dietitian to refine his dietary approach further. The nurse reinforces the importance of adhering to prescribed medications and scheduled follow-ups and provides education on recognizing warning signs that require immediate medical attention. This development highlights the ongoing nature of managing CAD and the need for continuous assessment and adjustment to maintain the patient's stability and prevent progression of the disease.
Section 4
Response to Interventions
Several weeks after the patient agreed to increase his medication dosage and meet with a dietitian, he returns for a follow-up appointment to assess the effectiveness of these interventions. The nurse begins by evaluating the patient's adherence to the new medication regimen and dietary changes. The patient reports feeling more energetic, which has allowed him to resume his regular walking routine without experiencing chest discomfort. He mentions that he has been diligently taking his prescribed medications and has incorporated more heart-healthy foods into his diet, as recommended by the dietitian.
The nurse conducts a thorough assessment, noting that the patient’s vital signs remain stable with a blood pressure of 118/76 mmHg and a heart rate of 72 beats per minute. The patient’s latest laboratory tests show a slight decrease in LDL cholesterol, now at 98 mg/dL, indicating a positive response to the dietary modifications and medication adjustment. An updated ECG reveals no new ischemic changes, suggesting improved cardiac stability.
The nurse discusses these encouraging results with the patient, highlighting the importance of continued adherence to lifestyle modifications and medication. The patient expresses relief and motivation to maintain these healthy habits. The nurse reinforces the need for regular follow-up appointments to monitor his condition and address any changes promptly. This successful response to interventions underscores the importance of personalized care and patient education in managing stable CAD effectively, setting the stage for ongoing management and prevention of disease progression.
Section 5
A few months later, the patient returns for a routine follow-up appointment. During the initial assessment, the nurse observes that the patient appears well and in good spirits. The patient reports that he has continued to adhere to his medication regimen and diet, feeling increasingly confident in managing his condition. He mentions he has even started a gentle yoga class to further support his cardiovascular health. The nurse notes that the patient's blood pressure remains stable at 116/74 mmHg, and his heart rate is a steady 70 beats per minute.
The patient's latest laboratory tests reveal a further decrease in LDL cholesterol, now at 92 mg/dL, and a slight increase in HDL cholesterol to 55 mg/dL. These results are indicative of the patient's successful lifestyle changes and adherence to medical advice. However, the nurse also reviews the patient's glucose levels, noticing a fasting blood glucose level of 102 mg/dL, slightly higher than previous readings. While this does not indicate diabetes, it prompts a discussion about monitoring carbohydrate intake and possibly enhancing physical activity to prevent any future complications.
The nurse takes this opportunity to educate the patient on the significance of maintaining balanced blood glucose levels, especially given his CAD diagnosis. They discuss potential dietary adjustments and explore the idea of incorporating more frequent, shorter walks into his routine. The patient is receptive to these suggestions and agrees to continue monitoring his blood glucose levels at home. The nurse schedules the next follow-up appointment, emphasizing the importance of ongoing monitoring and vigilance to catch any changes early. This proactive approach aims to maintain the patient's positive trajectory and prevent the emergence of new complications.