NU566 Cardiac and Associated Risk Disorders Case Study

NU566 Cardiac and Associated Risk Disorders Case Study

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Purdue University Global

NU566 NP I – Introduction to Primary Care for the Nurse Practitioner

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Date

Cardiovascular Problems Case Study: 

A 52-year-old man with exertional chest pain that improves with rest, chronic fatigue, obesity, hypertension, hyperlipidemia, and ongoing caregiver stress is most likely experiencing stable angina caused by coronary artery disease (CAD) until proven otherwise. This presentation warrants immediate cardiovascular evaluation because early diagnosis and aggressive management can significantly reduce the risk of myocardial infarction, stroke, heart failure, and premature death. Comprehensive assessment, evidence-based diagnostics, patient education, and long-term risk factor modification are essential for improving cardiovascular outcomes.

Case Overview

A 52-year-old male house painter presents with complaints of chronic fatigue and mild chest discomfort occurring during physical work. The pain consistently resolves within approximately five minutes of rest and occasionally radiates into his left arm. Three years ago, he was advised to improve his diet and exercise habits after being diagnosed with mild hyperlipidemia. Since that time, however, he has gained nearly 30 pounds.

His medical history includes:

• Hyperlipidemia

• Anxiety

• Vasectomy

• Cholecystectomy

The patient denies smoking or using nicotine products. However, he experiences considerable emotional stress because he is the primary caregiver for his wife, who has multiple sclerosis, while also financially supporting his daughter and grandson. Despite his symptoms, he is reluctant to seek continued medical care due to work obligations and caregiving responsibilities.

Initial Clinical Findings

• Blood Pressure: 158/78 mmHg

• Heart Rate: 87 beats/minute

• Respiratory Rate: 20 breaths/minute

• Body Mass Index (BMI): 32 kg/m²

Diagnostic Tests Ordered

• Electrocardiogram (ECG)

• Lipid profile

• Cardiac biomarkers (cardiac enzymes)

• C-reactive protein (CRP)

Understanding Stable Angina

Stable angina occurs when the heart muscle requires more oxygen than narrowed coronary arteries can deliver during physical exertion or emotional stress. The resulting temporary myocardial ischemia produces predictable chest discomfort that resolves with rest or nitroglycerin.

In this case, several clinical features strongly suggest stable angina:

• Chest pain triggered by physical activity

• Relief after resting

• Radiation to the left arm

• Multiple cardiovascular risk factors

• Middle-aged male patient

Although stable angina is the leading diagnosis, clinicians must promptly rule out acute coronary syndrome (ACS), which requires emergency treatment.

Comprehensive Chest Pain Assessment

Obtaining a detailed symptom history is critical for distinguishing stable angina from unstable angina and other cardiac or non-cardiac conditions.

Information to Collect

Healthcare providers should evaluate:

• Exact location of discomfort

• Pain quality (pressure, squeezing, heaviness, burning, or tightness)

• Severity using a standardized pain scale

• Duration of each episode

• Frequency of symptoms

• Radiation to the:

  • Left arm

  • Jaw

  • Neck

  • Shoulder

  • Back

NU566 Cardiac and Associated Risk Disorders Case Study

• Activities that trigger pain

• Factors that relieve symptoms, including rest or medications

• Associated symptoms such as:

  • Shortness of breath

  • Excessive sweating (diaphoresis)

  • Nausea

  • Dizziness

  • Syncope

  • Palpitations

  • Skin color changes

• Time of symptom onset

• Recent changes in frequency, duration, or severity

Pain occurring at rest, lasting longer than usual, or becoming progressively worse may indicate unstable angina or myocardial infarction and requires immediate evaluation.

Comprehensive Cardiovascular Physical Examination

A focused cardiovascular assessment provides valuable information regarding circulatory status and possible structural heart disease.

Recommended Examination Components

Healthcare providers should assess:

• Peripheral pulses in all extremities

• Carotid arteries for bruits

• Jugular venous distention (JVD)

• Orthostatic blood pressure

• Skin temperature and color

• Capillary refill

• Peripheral edema

• Signs of intermittent claudication

• Cardiac auscultation for:

  • Murmurs

  • Gallops

  • Extra heart sounds

• Lung auscultation for crackles that may suggest heart failure

These findings help determine disease severity and identify complications requiring additional intervention.

Diagnostic Evaluation

Accurate diagnosis of coronary artery disease requires combining patient history, physical examination, laboratory studies, and cardiac testing rather than relying on a single test.

Electrocardiogram (ECG)

An ECG evaluates:

• Myocardial ischemia

• Cardiac rhythm abnormalities

• Previous myocardial infarction

• Conduction disturbances

A normal ECG does not exclude coronary artery disease, particularly in patients with stable angina whose symptoms occur only during exertion.

Lipid Profile

The lipid panel measures:

• Total cholesterol

• LDL cholesterol

• HDL cholesterol

• Triglycerides

Elevated LDL cholesterol significantly contributes to atherosclerotic plaque formation and progression of coronary artery disease.

Cardiac Biomarkers

Cardiac enzymes, including troponin, help identify myocardial injury. Elevated cardiac biomarkers suggest myocardial infarction rather than uncomplicated stable angina.

Understanding Elevated C-Reactive Protein (CRP)

C-reactive protein (CRP) is an inflammatory biomarker used to estimate cardiovascular risk rather than diagnose coronary artery disease.

Higher CRP levels have been associated with increased risk for:

• Myocardial infarction

• Stroke

• Peripheral arterial disease

• Sudden cardiac death

However, CRP lacks specificity because elevated levels may also result from:

• Acute infections

• Autoimmune diseases

• Trauma

• Chronic inflammatory disorders

• Obesity

For this reason, CRP should always be interpreted alongside ECG findings, cardiac biomarkers, imaging studies, and the patient’s clinical presentation.

Differential Diagnosis

Although stable angina remains the most likely diagnosis, clinicians should evaluate other potential causes of chest pain.

Cardiovascular Conditions

Potential cardiac diagnoses include:

• Stable coronary artery disease

• Acute coronary syndrome

• Coronary vasospasm

• Coronary thrombus

• Severe hypertension

• Hypertrophic obstructive cardiomyopathy

• Aortic stenosis

• Aortic insufficiency

• Congenital heart disease

Non-Cardiac Conditions

Several non-cardiac disorders can mimic angina, including:

• Gastroesophageal reflux disease (GERD)

• Esophageal spasm

• Biliary colic

• Costochondritis

• Anxiety or panic disorder

Further diagnostic testing is necessary to distinguish among these conditions.

Major Cardiovascular Risk Factors

This patient demonstrates numerous modifiable and non-modifiable cardiovascular risk factors.

Modifiable Risk Factors

• Hypertension

• Hyperlipidemia

• Obesity

• Sedentary lifestyle

• Chronic psychological stress

• Poor dietary habits

Non-Modifiable Risk Factors

• Male sex

• Age over 50 years

Addressing modifiable risk factors significantly reduces long-term cardiovascular morbidity and mortality.

Patient Education and Lifestyle Management

Lifestyle modification remains one of the most effective interventions for preventing progression of coronary artery disease.

Heart-Healthy Nutrition

Patients should be encouraged to:

• Follow the DASH or Mediterranean dietary pattern

• Increase intake of fruits and vegetables

• Choose whole grains

• Eat lean protein sources

• Reduce sodium intake

• Limit saturated fats to less than 7% of daily calories

• Consume less than 300 mg of dietary cholesterol per day

• Avoid trans fats and highly processed foods

Weight Management

Gradual weight loss improves:

• Blood pressure

• Lipid levels

• Insulin sensitivity

• Exercise tolerance

• Overall cardiovascular health

Physical Activity

After medical clearance, patients should gradually participate in regular aerobic exercise, such as walking, cycling, or swimming, according to current cardiovascular guidelines.

Stress Reduction

Chronic stress contributes to elevated blood pressure, inflammation, and unhealthy lifestyle behaviors.

Helpful stress-management techniques include:

• Relaxation exercises

• Mindfulness meditation

• Counseling

• Support groups

• Adequate sleep

• Time management strategies

Medication Education

Medication adherence is essential for reducing cardiovascular events.

Patients should understand the importance of:

• Taking antihypertensive medications exactly as prescribed

• Using lipid-lowering therapy when indicated

• Monitoring blood pressure regularly

• Attending scheduled follow-up appointments

• Reporting medication side effects promptly

Patients should also recognize medications that may increase blood pressure, including:

• Nonsteroidal anti-inflammatory drugs (NSAIDs)

• Certain antidepressants

• Over-the-counter decongestants

Addressing Caregiver Stress

The patient’s statement that he “doesn’t have time to be sick” highlights the impact of caregiver burden on healthcare decisions.

Healthcare professionals should respond with empathy while emphasizing that untreated cardiovascular disease may eventually limit his ability to care for his family.

Supportive Interventions

Healthcare providers should:

• Encourage open discussion about emotional stress

• Explain the risks of delaying treatment

• Reinforce the importance of completing recommended cardiac testing

• Schedule regular follow-up appointments

• Refer the patient to a cardiologist

• Consider referral to a social worker for:

  • Caregiver support

  • Community resources

  • Financial assistance programs

  • Respite care services

Addressing psychosocial challenges improves treatment adherence and overall quality of life.

Clinical Priorities

The immediate goals of care include confirming the diagnosis, reducing cardiovascular risk, and preventing acute coronary events.

Priority Management Goals

• Differentiate stable angina from unstable angina

• Complete diagnostic cardiac evaluation

• Control hypertension

• Improve lipid levels

• Promote healthy weight loss

• Reduce chronic stress

• Improve adherence to treatment

• Address caregiver burden through multidisciplinary care

Early intervention substantially lowers the risk of myocardial infarction, stroke, heart failure, and cardiovascular mortality.

Key Clinical Takeaways

This case illustrates a classic presentation of stable angina in a patient with multiple cardiovascular risk factors. Exertional chest pain relieved by rest, obesity, hypertension, hyperlipidemia, and chronic caregiver stress strongly indicate underlying coronary artery disease. Effective management requires a comprehensive cardiovascular assessment, appropriate diagnostic testing, aggressive risk-factor modification, medication adherence, lifestyle counseling, and coordinated follow-up care. Equally important is addressing psychosocial stressors that may interfere with treatment adherence and long-term cardiovascular health.

Frequently Asked Questions (FAQs)

What is the most likely diagnosis in this case?

The patient’s symptoms are most consistent with stable angina secondary to coronary artery disease because the chest pain occurs during physical activity, improves with rest, and occasionally radiates to the left arm.

Why is C-reactive protein (CRP) measured?

CRP is an inflammatory marker used to estimate cardiovascular risk. Elevated CRP levels are associated with a greater likelihood of heart attack and stroke but cannot independently diagnose coronary artery disease.

Which cardiovascular risk factors are present?

This patient has several important risk factors, including:

• Hypertension

• Hyperlipidemia

• Obesity

• Chronic psychological stress

• Male sex

• Age over 50 years

Why is caregiver stress clinically important?

Long-term caregiver stress increases cardiovascular risk by contributing to elevated blood pressure, poor sleep, unhealthy lifestyle choices, medication non-adherence, and persistent inflammation.

What lifestyle changes are recommended?

Patients should:

• Follow a heart-healthy diet

• Increase physical activity after medical clearance

• Achieve gradual weight loss

• Control blood pressure and cholesterol

• Reduce stress

• Limit alcohol consumption

• Take prescribed medications consistently

 Clinical Summary

Stable Angina Clinical Snapshot

Stable angina typically presents as predictable exertional chest pain that improves with rest. Comprehensive evaluation should include patient history, cardiovascular examination, ECG, laboratory testing, and assessment of cardiovascular risk factors.

Evidence-Based Assessment

Cardiovascular diagnosis should integrate clinical findings, ECG results, laboratory studies, and overall patient risk rather than relying solely on inflammatory markers such as CRP.

Prevention Strategy

Long-term cardiovascular risk is reduced through lifestyle modification, blood pressure control, cholesterol management, medication adherence, weight reduction, stress management, and ongoing follow-up.

References 

American College of Cardiology. (2023). 2023 AHA/ACC guideline for the management of patients with chronic coronary disease. https://www.acc.org/Guidelines

Arnett, D. K., Blumenthal, R. S., Albert, M. A., et al. (2019). 2019 ACC/AHA guideline on the primary prevention of cardiovascular disease. Circulation, 140(11), e596–e646. https://doi.org/10.1161/CIR.0000000000000678

Centers for Disease Control and Prevention. (2024). Heart disease prevention. https://www.cdc.gov/heart-disease/prevention/

Libby, P., Loscalzo, J., & Braunwald, E. (2022). Braunwald’s heart disease: A textbook of cardiovascular medicine (12th ed.). Elsevier. https://www.elsevier.com/books/braunwalds-heart-disease

NU566 Cardiac and Associated Risk Disorders Case Study

McCance, K. L., & Huether, S. E. (2023). Pathophysiology: The biologic basis for disease in adults and children (9th ed.). Elsevier. https://www.elsevier.com/books/pathophysiology/mccance

Whelton, P. K., Carey, R. M., Aronow, W. S., et al. (2018). 2017 ACC/AHA guideline for the prevention, detection, evaluation, and management of high blood pressure in adults. Hypertension, 71(6), e13–e115. https://doi.org/10.1161/HYP.0000000000000065