Heart screening tests: which to get and which to skip

Q: My smartwatch says I might have AFib. Is that screening?

In a way, yes, and the Task Force found no trials of it. An alert is a reason to call your clinician, not a diagnosis. Our article on smartwatch alerts explains what they catch and miss.

Where the evidence stands

Strong evidence Checking blood pressure in all adults prevents harmOne aneurysm ultrasound helps men 65 to 75 who smoked
Promising but early A calcium score improves statin decisions in undecided adults
Not enough evidence Ankle-index or AFib screening prevents heart attacks or strokes
Evidence says no, or unsafe Carotid ultrasound helps people without symptomsECG screening helps low-risk adults

Each use is rated separately, from the scorecard in this guide. Safety cautions are spelled out in the guide itself. How we grade

On this page

The most valuable heart screenings are the plainest ones
One aneurysm ultrasound, once, for the right people
A calcium scan can settle a statin question, if you're truly undecided
Four tests the Task Force advises against or can't yet judge
What a screening package does and doesn't buy
The heart screening menu
Young athletes: Europe screens with ECGs, U.S. heart groups don't
How strong is the evidence?
Doing less, on purpose, is good prevention
Questions readers ask
The bottom line

Key takeaways

The Task Force’s top grade in heart screening goes to a plain blood pressure check, an A for every adult 18 and older, with high office readings confirmed outside the clinic before treatment².
The Task Force recommends one ultrasound for an abdominal aortic aneurysm in men 65 to 75 who have ever smoked, and Medicare covers it once with a referral, including for people with a family history⁵⁶.
A coronary calcium scan usually costs about $50 to $400 out of pocket. The 2026 cholesterol guideline uses it when a statin decision is uncertain, while the Task Force still calls the evidence insufficient⁷⁸⁹.
The Task Force recommends against carotid ultrasound for people without symptoms and against ECG screening for low-risk adults, and it finds too little evidence to judge ankle-pressure or AFib screening^9111213.
Chest pain, shortness of breath or feeling faint isn’t a screening question: the CDC says to call 911 right away for heart attack signs¹⁵.

In June 2015, a mobile testing van from a Florida company called HealthFair parked outside a Walgreens in Skokie, Illinois, selling heart and blood vessel tests¹.

One customer, a 55-year-old man from the Chicago suburbs, told reporters what brought him there: a family history of heart disease and the sudden death of a 52-year-old friend from a heart attack. His results hinted at “stiff heart syndrome,” in which proteins build up in the heart. His own doctor recommended no follow-up¹.

The Chicago Tribune and Kaiser Health News reported his story that year. At the time, HealthFair and Life Line Screening, an Ohio company that tested in churches, senior centers and gyms, sold bundles of 4 to more than a dozen tests for about $100 to $300. Insurers typically didn’t pay unless a doctor ordered the tests to diagnose a problem¹. Prices and bundles may differ today.

The bundles often included an electrocardiogram (ECG), a carotid artery ultrasound and an aortic aneurysm ultrasound. Only the aneurysm scan carried a recommendation from the U.S. Preventive Services Task Force, and only for men 65 to 75 who had smoked¹.

Meanwhile, about 45% of U.S. adults have high blood pressure, the Task Force estimates from 2017–2018 CDC data². Finding it takes only a cuff.

This guide sorts heart screening into three groups: get it, decide with your clinician, and skip it unless you have symptoms.

The most valuable heart screenings are the plainest ones

The Task Force is an independent panel of prevention experts that grades preventive services from A to D, plus I for insufficient evidence. Its strongest heart grade, an A, goes to blood pressure screening for adults 18 and older, reaffirmed in April 2021².

It suggests a yearly check from age 40, and for anyone at higher risk, such as Black adults and people with overweight or high-normal readings. Lower-risk adults 18 to 39 with a normal reading can wait 3 to 5 years². A high office reading should be confirmed at home or with a monitor you wear before treatment starts². Our blood pressure article explains the numbers.

Blood sugar comes next. The Task Force gives a B to testing adults 35 to 70 who have overweight or obesity, using a fasting glucose, an A1C or a glucose tolerance test, and it suggests starting earlier for some higher-risk groups³. Our prediabetes article explains how the diabetes association draws that line differently and what a borderline result means.

Cholesterol works a little differently. The Task Force folds cholesterol testing into its statin advice, because cholesterol levels feed the risk estimate. Its 2022 grades: a B for adults 40 to 75 with a risk factor and a 10-year heart risk of 10% or more, and a C at 7.5% to under 10%⁴.

These three checks are part of routine care. They also measure things you can change with food, movement, sleep and not smoking.

One aneurysm ultrasound, once, for the right people

An abdominal aortic aneurysm is a bulge in the body’s main artery as it runs through the belly, usually defined as 3.0 centimeters or wider⁵.

The Task Force’s 2019 advice depends on sex and smoking⁵:

Men 65 to 75 who have ever smoked: one ultrasound, grade B.
Men 65 to 75 who never smoked: offer it selectively, grade C.
Women who never smoked and have no family history: don’t screen, grade D.
Women 65 to 75 who smoked or have a family history: too little evidence, grade I.

In trials of mostly older men, 4.0% to 7.6% of those screened had an aneurysm⁵. Screening cut aneurysm deaths by about 35%, a relative figure. In absolute terms, the Task Force says 246 men must be screened to prevent one rupture⁵. By our math, that’s about 4 ruptures prevented per 1,000 men screened.

The trade-off: screened groups had about 40% more aneurysm operations, mostly planned repairs, and overdiagnosis is hard to measure⁵. Deaths from all causes didn’t change⁵. A normal first scan is reassuring, because aneurysm deaths over the next 5 to 12 years are rare in those men⁵.

Medicare Part B covers one screening ultrasound with a referral, at no cost if your provider accepts Medicare’s rate⁶. Its eligibility is a little broader than the Task Force’s top grades: men 65 to 75 who have smoked at least 100 cigarettes, or anyone with a family history of the condition⁶.

A calcium scan can settle a statin question, if you’re truly undecided

A coronary artery calcium (CAC) scan is a CT picture of the heart, timed to the heartbeat, that counts calcified plaque in the heart’s arteries. Scores run from 0, meaning no calcified plaque, to more than 1,000⁸.

A JAMA patient guide from June 2025 puts the 10-year rate of heart attacks, strokes and related events at 1% to 6% for people with a score of 0, compared with 13% to 26% for scores above 300⁸. By our math, that’s 10 to 60 people per 1,000 versus 130 to 260.

The 2026 cholesterol guideline from the American College of Cardiology and the American Heart Association uses CAC as a tiebreaker. According to a summary by EBSCO’s DynaMed, a clinical reference service, it’s for adults at borderline or intermediate risk when the statin decision is uncertain⁷:

Score of 0: a statin may be put off. Up to 40% of intermediate-risk adults score 0.
Score above 0: generally favors starting a statin.
Score of 100 or more, or at the 75th percentile or higher: supports a statin, often at high intensity. About 25% of intermediate-risk adults score 100 or more, and their event rates resemble those of high-risk patients.

For many natural-health readers, that first line matters. A zero can be a documented reason to keep working on habits rather than start a daily pill, at least for now.

The scan isn’t for everyone. The JAMA guide says it isn’t recommended for people already taking a statin, those with known heart disease, diabetes, current smoking or an inherited cholesterol disorder, because they should be treated regardless of the score⁸.

It costs about $50 to $400 out of pocket, and Medicare, Medicaid and most private plans generally don’t cover it for people without symptoms⁸. Follow-up can cost more: stress tests, catheterization, and workups of things the scan happens to catch, such as lung spots or a widened aorta⁸.

The Task Force sees CAC differently. In 2018 it called the evidence insufficient to judge adding CAC to standard risk tools, and it reported a radiation dose of 0.4 to 2.1 millisieverts, with unrelated findings on the CT in 8% to 58% of people across seven studies⁹. A new Task Force review of CAC scoring is now at the draft stage¹⁰. Its membership has also been remade, which our preventive care checklist article covers.

Four tests the Task Force advises against or can’t yet judge

Several of these tests turn up in community packages¹. Each grade applies to people without symptoms.

Resting or exercise ECG. In 2018, the Task Force recommended against ECG screening for adults at low risk, a D, and called the evidence insufficient for adults at higher risk, an I¹¹. The concern is the cascade. An abnormal ECG can lead to coronary angiography, a catheter test that carried a 1.7% rate of serious harm, including stroke and death, in registries that also included people with symptoms¹¹. In two trials of adults with diabetes, 6% and 12% of those screened went on to angiography, with no clear benefit¹¹.

Carotid artery ultrasound. Sold as stroke screening, it got a D in 2021: harms outweigh benefits for people without stroke symptoms¹². Narrowed neck arteries are uncommon, about 0.5% to 1% of people in one review, so false alarms pile up¹². By our math, in 1,000 people, the test’s 94% specificity would flag about 60 people without a serious narrowing, next to at most 9 true cases. Surgery to clear the artery carries a 30-day risk of stroke or death of about 1.4% to 3.5% in recent data¹².

Ankle-brachial index (ABI). This compares blood pressure in the ankle and arm to look for peripheral artery disease. The Task Force found too little evidence to judge it in 2018⁹. Two trials that used it to decide who should take aspirin found no heart benefit after seven years, though both used unusual cutoffs⁹.

AFib screening. The Task Force rated it I in 2022, adding that this is “not a recommendation against screening”¹³. The only trial large enough to measure outcomes found no significant drop in ischemic strokes, the kind caused by a blocked artery, and blood thinners carry a bleeding risk¹³. No trials have compared smartwatch screening with no screening¹³.

What a screening package does and doesn’t buy

The companies make their case directly. Life Line’s medical officer told the Tribune that the medical societies’ advice was outdated and that seeing images of their own arteries can motivate people to change habits. HealthFair’s chief executive said the company coordinates with doctors on follow-up¹.

The doctors quoted saw it differently. The American College of Physicians’ chief executive worried that people could run into more problems from the testing than from skipping it. Then-Task Force chair Albert Siu said the tests can be valuable when a doctor orders them for a diagnosis, adding, “It’s about not subjecting patients to tests where it would not change your management”¹.

That’s the core question for any package: what will you do with the result? An aneurysm finding in a man who smoked changes care. A “maybe” on a carotid scan in a healthy 50-year-old may only start a chain of more scans.

We built this table from the sources cited. Grades are the Task Force’s, for adults without symptoms. Costs and coverage can change.

Test	Who it’s for	Grade and year	Cost and coverage	Main downside
Get it: blood pressure	Adults 18+	A, 2021²	Routine at checkups	Office readings can mislead; confirm at home²
Get it: blood sugar	Ages 35 to 70 with overweight or obesity; earlier for some³	B, 2021³	Routine blood test	Diabetes-range results need a repeat test³
Get it: cholesterol panel	Adults, as part of heart risk assessment	Feeds the B and C statin grades, 2022⁴	Routine blood test	Little direct harm
Get it: aortic aneurysm ultrasound	Men 65 to 75 who ever smoked	B, 2019⁵	Medicare covers once with referral⁶	More planned surgeries; some overdiagnosis⁵
Decide together: aneurysm ultrasound	Men 65 to 75 who never smoked; women 65 to 75 who smoked or have a family history	C or I, 2019⁵	Medicare covers with a family history⁶	Same as above; higher surgical risk in women⁵
Decide together: calcium score	Borderline or intermediate risk, statin decision unclear⁷	I, 2018; update in progress⁹¹⁰	About $50 to $400, usually not covered⁸	Radiation; incidental findings⁹
Skip without symptoms: ECG	Low-risk adults	D, 2018¹¹	Often in packages	Angiography and its risks¹¹
Skip without symptoms: carotid ultrasound	All adults without stroke symptoms	D, 2021¹²	Often in packages	False alarms; surgery risk¹²
Not proven yet: ankle-brachial index	Adults without symptoms	I, 2018⁹	Often in packages	May shift people into the wrong risk group⁹
Not proven yet: AFib screening	Adults 50+	I, 2022¹³	Often in packages; smartwatches	Blood thinners can cause bleeding¹³

Young athletes: Europe screens with ECGs, U.S. heart groups don’t

Sudden deaths of young athletes drive another screening debate. The American Heart Association and American College of Cardiology rely on a detailed family history and physical exam. They don’t recommend routine ECGs, though they say one may be considered in small, closely supervised programs¹⁴.

The European Society of Cardiology, the International Olympic Committee and FIFA recommend a 12-lead ECG, and Italy and Israel require one¹⁴. A 2006 study from Italy’s Veneto region reported an 89% drop in the yearly rate of athletes’ sudden cardiac deaths over 26 years of mandatory screening¹⁴. A 2016 review in The BMJ said the benefit has not been proven and counted a harm: about 2% of athletes screened in Italy are barred from competition¹⁴.

How strong is the evidence?

Claim	Evidence rating	What it rests on
Checking blood pressure in all adults prevents harm	Strong evidence	Task Force grade A²
One aneurysm ultrasound helps men 65 to 75 who smoked	Strong evidence	Pooled trials: about 35% fewer aneurysm deaths⁵
A calcium score improves statin decisions in undecided adults	Promising but early	2026 guideline endorses it; the Task Force found too little outcome evidence in 2018⁷⁹
Ankle-index or AFib screening prevents heart attacks or strokes	Not enough evidence	Task Force I grades; no outcome benefit shown⁹¹³
Carotid ultrasound helps people without symptoms	Evidence says no, or unsafe	Grade D: false alarms and surgical risk¹²
ECG screening helps low-risk adults	Evidence says no, or unsafe	Grade D: harms equal or exceed benefits¹¹

Doing less, on purpose, is good prevention

Many natural-health readers distrust medicine that treats healthy people as patients. On heart screening, the Task Force often agrees. It has said no to two tests sold in parking lots and churches, and not yet to two more^9111213.

What it backs instead looks a lot like what prevention-minded people already do. Checking your blood pressure, blood sugar and cholesterol tells you whether your habits are working.

The skill is matching the test to the question.

Questions readers ask

Is a community heart screening package worth the money?

Usually not, unless you’re a man 65 to 75 who has smoked and hasn’t had an aneurysm scan. That’s the only test commonly in these bundles with a Task Force recommendation¹⁵. If you’re on Medicare, it covers that scan once with a referral⁶. The other tests are rated D or I for people without symptoms^9111213.

Can a calcium score of zero replace a statin?

For some people at borderline or intermediate risk, the 2026 guideline says a zero means a statin may be deferred⁷. It doesn’t apply to people with diabetes, current smokers or those with inherited high cholesterol⁸. For people over 40 who score zero, the JAMA guide says a repeat scan after five years may be considered⁸.

My smartwatch says I might have AFib. Is that screening?

In a way, yes, and the Task Force found no trials of it¹³. An alert is a reason to call your clinician, not a diagnosis. Our article on smartwatch alerts explains what they catch and miss.

Will the new Task Force change these grades?

Possibly. A calcium-scoring review and a diet-and-activity counseling update are both in draft development¹⁰. Until anything is final, the current grades stand.

The bottom line

The heart screenings with the strongest evidence aren’t sold in vans. They’re a blood pressure cuff, a blood sugar test, a cholesterol panel and, for men 65 to 75 who have smoked, one aneurysm ultrasound. A calcium score can help if you and your clinician are stuck on the statin question.

Carotid ultrasounds, routine ECGs, ankle-pressure tests and AFib checks in people without symptoms either haven’t shown a benefit or cause more harm than good. Before any test, ask what the result would change, and if you have symptoms, skip the screening line and get care.

About this article

This article was researched using U.S. Preventive Services Task Force recommendations, Medicare coverage rules, a summary of the 2026 cholesterol guideline, a JAMA patient guide, CDC pages and news reporting, all listed below. It was reviewed in October 2026. It is general education, not medical, legal or financial advice.

Sources

Venteicher W. “Experts question value of heart tests sold as potential life-savers.” Chicago Tribune, with Kaiser Health News, 2015 (reprint posted by the American College of Physicians). acponline.org
U.S. Preventive Services Task Force. “Hypertension in Adults: Screening.” Final recommendation statement, April 27, 2021. uspreventiveservicestaskforce.org
U.S. Preventive Services Task Force. “Prediabetes and Type 2 Diabetes: Screening.” Final recommendation statement, August 24, 2021. uspreventiveservicestaskforce.org
U.S. Preventive Services Task Force. “Statin Use for the Primary Prevention of Cardiovascular Disease in Adults: Preventive Medication.” Final recommendation statement, August 23, 2022. uspreventiveservicestaskforce.org
U.S. Preventive Services Task Force. “Abdominal Aortic Aneurysm: Screening.” Final recommendation statement, December 10, 2019. uspreventiveservicestaskforce.org
Medicare.gov. “Abdominal aortic aneurysm screenings.” Centers for Medicare & Medicaid Services, accessed October 2026. medicare.gov
EBSCO DynaMed. “EBM Focus: Top Takeaways From the Updated ACC/AHA Guideline on the Management of Dyslipidemia.” EBSCO Health Notes, 2026. about.ebsco.com
Walter KL. “What Is a Cardiac CT Calcium Score?” JAMA Patient Page. JAMA, 2025;334(5):462, published online June 12, 2025. pubmed.ncbi.nlm.nih.gov
U.S. Preventive Services Task Force. “Cardiovascular Disease: Risk Assessment With Nontraditional Risk Factors.” Final recommendation statement, July 10, 2018. uspreventiveservicestaskforce.org
U.S. Preventive Services Task Force. “Recommendations in Progress.” USPSTF, accessed October 23, 2026. uspreventiveservicestaskforce.org
U.S. Preventive Services Task Force. “Cardiovascular Disease Risk: Screening With Electrocardiography.” Final recommendation statement, June 12, 2018. uspreventiveservicestaskforce.org
U.S. Preventive Services Task Force. “Carotid Artery Stenosis: Screening.” Final recommendation statement, February 2, 2021. uspreventiveservicestaskforce.org
U.S. Preventive Services Task Force. “Atrial Fibrillation: Screening.” Final recommendation statement, January 25, 2022. uspreventiveservicestaskforce.org
TCTMD. “Evidence Does Not Support Widespread Preparticipation ECG Screening in Young Athletes.” April 22, 2016, reporting Van Brabandt H, et al., The BMJ, April 20, 2016. tctmd.com
Centers for Disease Control and Prevention. “About Heart Attack Symptoms, Risk, and Recovery.” CDC, updated October 24, 2024. cdc.gov