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Integrative Medicine
—

Using Cardiovascular Lab Testing to Tell the Story of Heart Health

Updated on June 20, 2025 | Published on November 13, 2024
Fact checked
Dave Kamikow Avatar
Written by Dave Kamikow
Dr Lara Zakaria, PharmD, MS, CDN, CNS, IFMCP
Medically reviewed by Dr Lara Zakaria, PharmD, MS, CDN, CNS, IFMCP
  1. Wellness blog
  2. Using Cardiovascular Lab Testing to Tell the St...

As the leading cause of death in the United States, there’s ample focus and research on cardiovascular disease. The condition, affecting both men and women across various racial and ethnic groups, has been linked to one in five deaths, so the importance of cardiovascular testing has never been clearer. 

Unlike many common conditions, cardiovascular disease is considered preventable and treatable. Many risk markers can be clearly assessed, including high blood pressure, high cholesterol, and smoking. Nearly half the people in the United States have at least one of these risk factors. Blood tests assessing everything from lipids and cardiac enzymes to full metabolic panels can be a tool for practitioners to help patients better understand overall cardiovascular health and risks.

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Did you know? One person dies from cardiovascular disease every 33 seconds—or in about the time it took to read that last paragraph. (16)

Common lab tests to monitor cardiovascular health

As a practitioner, you have several options for cardiovascular testing and assessing heart health. Finding the right mix of diagnostic labs can help you paint a clearer picture for your patients. Every year, there are more than 800,000 heart attacks in the United States (16) and almost as many strokes (27). It’s never too early to assess your patients’ risk and discuss prevention strategies. Cardiovascular testing is one of a practitioner’s most effective tools to establish a baseline and begin that conversation. Here are some of the most commonly utilized cardiac screening blood tests.

Lipid profile 

While it’s likely your patients are familiar with the concept of cholesterol, there’s a chance they are confused by it as well (12). This simple blood test provides (15) a comprehensive assessment and breakdown of the different types of lipids in the blood: low-density lipoprotein (LDL), high-density lipoprotein (HDL), and triglycerides.

Research has consistently shown that lipid levels, particularly LDL and HDL, are indicators of cardiovascular risk. Assessing levels and discussing the interplay between “good” cholesterol and “bad” cholesterol is important in promoting cardiovascular health (14). For more accurate results, it’s recommended that patients fast for 10–12 hours prior to blood draw. (22) 

Lipid profiles are also beneficial when measuring the efficacy of a treatment plan, providing healthcare providers and patients with a detailed view of changes in cholesterol levels.

High-sensitivity C-reactive protein

While traditional risk factors have been well established over the years, new studies point to a connection between low-grade inflammation and cardiovascular disease (2). C-reactive protein (CRP), a substance produced by the liver, is a known biomarker of inflammation. Inflammation in the arteries can be a key factor in the development of atherosclerosis, also known as the buildup of arterial plaque. Monitoring inflammation with a CRP blood test can help practitioners assess the risk of cardiovascular disease, especially in borderline cases or where traditional risk algorithms may not fully capture the complexities of an individual patient. (2)(9)(13)

Moreover, the high-sensitivity C-reactive protein (hs-CRP) test can detect lower levels of inflammation than the standard CRP test. This enhanced sensitivity makes hs-CRP crucial for identifying higher cardiovascular risk in patients without other risk factors. By measuring subtle increases in inflammation, hs-CRP refines risk assessment and helps tailor preventive strategies.

Homocysteine

This amino acid is produced during the body’s metabolism of methionine to cysteine. Elevated levels of homocysteine in the blood can be linked to cardiovascular endothelial damage and structural changes in the arteries. While further studies are required to determine whether elevated homocysteine is a risk factor for cardiovascular disease or merely a biomarker of the condition, assessing levels can provide additional insight into cardiovascular health. (11)(17)(18)(25)

Comprehensive metabolic panel 

One of the most common diagnostic labs available (8), this routine blood test measures 14 different substances in the blood including glucose, electrolytes (e.g., calcium, sodium, potassium, carbon dioxide, chloride), blood urea nitrogen (BUN), creatinine, albumin, and total protein. It provides vital information about cardiovascular health and metabolism. Elevated blood glucose levels can indicate a risk of cardiovascular disease (10), and it’s been shown that balanced electrolyte levels can help the heart function properly (6).   

Other labs to consider for cardiovascular testing

The following tests are useful to consider for patient evaluations. They can be used in addition to basic tests to enhance assessments.

A1C

A1C testing measures the average blood glucose levels over the past three months. The higher the glucose level in the bloodstream, the more it’ll attach to the hemoglobin. This test can be useful for identifying and monitoring insulin resistance, type 2 diabetes and prediabetes, along with diabetes. (28)

Lipoprotein Fractional NMR

Lipoprotein Fractional NMR testing can help assess the risk of cardiovascular disease in patients with elevated risk based on traditional or emerging factors. It can also be useful in assessing a response in patients undergoing lipid-lowering therapy. (26) NMR lipoprofile testing provides a detailed analysis of lipoprotein particles, offering insights beyond basic lipid testing by quantifying the size and number of these particles. This method gives a more robust risk assessment for cardiovascular disease, especially in patients with complex lipid profiles, helping tailor therapeutic approaches to individual patient needs. (26)

Apolipoprotein B 

Apolipoprotein B (ApoB) testing measures the amount of this specific protein that attaches to LDL cholesterol. ApoB can help transport the substances that contribute to plaque buildup in the arteries. (24)  By measuring ApoB levels, providers can assess the actual burden of atherogenic lipoproteins, offering a clearer indicator of cardiovascular risk than traditional cholesterol tests alone. This makes ApoB testing a valuable tool in predicting and managing cardiovascular disease. (24)

Lipoprotein (a)

Lipoprotein (a) (Lp(a)) testing can provide a deeper understanding of risk than routine cholesterol tests alone. If a large percentage of LDL is carried by lipoprotein (a) particles, the risk of heart disease and stroke could be elevated. (19) Lp(a) testing identifies the presence of lipoprotein (a) particles – which carry LDL cholesterol – and are associated with substantially higher risk for heart disease. By focusing on these particles, clinicians can gain a more precise assessment of cardiovascular risk beyond what standard cholesterol tests offer.

risk factors of cardiometabolic disease chart
While some risk factors for cardiovascular health are out of a patient’s control, several can be addressed with lifestyle modifications.

Promoting a heart-healthy lifestyle 

Assessing cardiovascular health is the first step toward promoting better outcomes. While some risk factors are beyond a patient’s control, working on those lifestyle factors that can be modified can significantly reduce cardiovascular risk. Helping patients take a series of small but smarter steps regarding diet, exercise, sleep, and stress can be challenging but can lead to significantly better outcomes. 

Exercise

Increasing physical activity benefits cardiovascular health in multiple ways—from lowering blood pressure and triglycerides to raising “good” cholesterol levels. It also helps patients maintain a healthy weight and reduce stress. Remind patients the goal isn’t running a marathon tomorrow but adding more activity to their daily routine. This can start with a 20 or 30-minute brisk walk three times a week and build from there. (5) 

Diet

It’s not news that the food we eat is critical to cardiovascular health. However, it’s important to remember that numerous socioeconomic factors can play a role in a patient’s diet, and access to fresh fruits, vegetables, and lean proteins isn’t guaranteed. Help patients avoid highly processed and fatty foods by finding heart-healthy alternatives that work within their budget and lifestyle. (3)

Among the most effective dietary interventions are the Mediterranean (20) and DASH (Dietary Approaches to Stop Hypertension) diets (23), both of which are rich in fruits, vegetables, whole grains, and lean proteins, and have been extensively studied for their benefits in reducing cardiovascular disease risk and managing cholesterol levels. Encouraging the inclusion of omega-3 fatty acids, found in fatty fish like salmon, and fiber-rich foods can also play a crucial role in lowering cholesterol and improving overall heart health (21). These diet modifications help manage health risks and are adaptable to various economic situations, making them practical options for diverse populations.

Sleep

We all know that adults require around seven hours of sleep each night, yet one-third of people report not getting enough sleep. Sleep reduces nocturnal blood pressure by 10–20%; without this daily dip, studies indicate an increased risk of potential cardiovascular disease (7). Still, there are only so many hours in the day, so work with your patients to help them understand the importance of good sleep. (1)

Stress

Mental health is more than a popular headline. Studies have identified stress as an emerging factor for cardiovascular risk, even in individuals who lack the traditional risk profile. (29)  While there are several potential sources of stress—work, relationships, economics, etc.—they all share a common combination of external pressures that meet physiological inabilities to cope with said stressors. Compounding the physical effects of stress, such as elevated blood pressure, are the second-order effects on well-being. When people are stressed, they tend to lose sleep, make bad food choices, exercise less, and consume more alcohol. (4)(29)

provider conducting cardiovascular testing
Providing patients with the knowledge behind the numbers of their cardiovascular testing can pave the way to better treatment adherence.

The bottom line 

Battling the risk of heart disease should begin by getting patients to focus on their heart health. The silver lining remains a practitioner’s ability to assess risk through regular cardiovascular testing and promote better outcomes through thoughtful lifestyle modifications. Now that we know what is included in cardiovascular screening and the benefits of the various diagnostic labs, we can continue the work of educating patients on making better lifestyle choices to reduce their risk factors. By explaining the results of a lipid profile or the potential impact of high blood glucose in a comprehensive metabolic panel, practitioners can help shine a light on these prevalent but potentially avoidable conditions.

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Author

Dave Kamikow Avatar
Written by Dave Kamikow
Dr Lara Zakaria, PharmD, MS, CDN, CNS, IFMCP
Medically reviewed by Dr Lara Zakaria, PharmD, MS, CDN, CNS, IFMCP

Disclaimer

The information in this article is designed for educational purposes only and is not intended to be a substitute for informed medical advice or care. This information should not be used to diagnose or treat any health problems or illnesses without consulting a doctor. Consult with a health care practitioner before relying on any information in this article or on this website.

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