Heart Tests, in Plain English

Heart tests explained: what each test can tell you

Find the name of your test below. See what it measured, what the result can tell you, and what to ask your clinician.

Build my Heart Story

What were we looking for?

A result can be reassuring and still leave another heart question unanswered. Knowing what the test can show helps you decide what to ask next.

Your history gives a test a reason

Which tests could answer my question?

These are not tests every woman needs. They are examples of tests that can answer different questions. Your history gives a test a reason; you and your clinician decide whether it has a job.

Open the question that fits your visit. Bring results you already have, including dates, so you can compare what has changed.

Could something besides menopause explain how I feel?

Blood count and iron tests, when needed. Heavy periods or unusual tiredness may give your clinician a reason to check for anemia. Anemia means you have fewer healthy red blood cells than your body needs. A complete blood count (CBC) helps check for it. A ferritin test helps show how much iron your body has stored. Neither test is automatic for every woman in midlife.

Thyroid tests, when your symptoms or history suggest a problem. A thyroid problem can cause symptoms that resemble menopause. The first blood test is usually TSH, a hormone that tells the thyroid how much hormone to make. Your clinician may also check a thyroid hormone called free T4, or order other tests if needed.

Ask: “What other causes should we consider before calling this menopause?”

Read more: NIH on anemia · American Thyroid Association on testing

Has my blood sugar changed?

Glucose measures blood sugar at the time of testing. A1c reflects your average over about three months. Your age, history and previous results help your clinician choose a test and when to repeat it.

Include diabetes during pregnancy in this conversation, even if your blood sugar returned to normal after delivery.

Ask: “Am I due for blood sugar testing, and how does this compare with my earlier results?”

My A1c is in the prediabetes range. What happens next?

NIH: A1c and blood sugar testing

Does my history give us a reason to check my kidneys?

A blood test for creatinine helps estimate how well your kidneys filter blood. The estimate is called eGFR.

A urine protein test, when needed. A test called UACR checks for a protein called albumin in your urine. It can help look for kidney damage if you have diabetes, high blood pressure, known kidney disease or another reason for testing. Reaching midlife alone does not mean you need it.

Ask: “Do I need kidney blood testing, urine testing, or both—and what would the results change?”

NIH: Kidney tests and who may need them

Do I need hormone tests to know whether this is menopause?

At 45 or older, your symptoms and changes in your periods are usually enough to recognize a typical menopause transition. A hormone called FSH can rise and fall during this time. Checking it routinely usually adds little to what your history tells us.

Hormone tests may help if symptoms begin before 45, the cause is unclear, or your clinician suspects another condition. Mention birth control and hormone treatment, which can affect bleeding and test results.

Anti-Müllerian hormone (AMH) is not a routine menopause test. It cannot tell an individual woman precisely when her menopause will happen.

Ask: “Would a hormone result change how we understand or treat my symptoms?”

MedlinePlus: When FSH testing helps · What AMH can and cannot tell you

What helps us understand my future heart risk?

Start with your history, blood pressure, standard cholesterol test, blood sugar and kidney results. Current guidance recommends measuring Lp(a) at least once in adulthood. Lp(a) carries cholesterol in your blood, and its level is mostly inherited. One measurement is often enough. If an earlier result was intermediate, ask whether repeating it, particularly after menopause, could change your prevention plan. See the Lp(a) guide below for when this may help. Another test, ApoB, helps estimate the number of particles that can contribute to buildup in artery walls. It is useful for some people, rather than a test everyone needs.

Include high blood pressure or diabetes during pregnancy, a baby born early, a baby who did not grow as expected, and other pregnancy complications. These still belong in your health history years later.

Your clinician can review your results and history together to discuss prevention. A risk estimate cannot tell you what is causing a symptom.

Ask: “What does my history add to these numbers, and what should we work on first?”

Lp(a) explained · ApoB explained · Pregnancy and heart history

Would another test actually change the answer?

A coronary artery calcium scan (CAC) looks for calcium in buildup in the arteries that supply your heart. It may help some people decide about treatment, such as cholesterol medicine, when their history and other results leave the decision unclear. It is not needed simply because you reach a certain age. A reassuring result does not mean you should ignore chest symptoms that continue.

Sometimes: an inflammation blood test called hs-CRP. It may add information if the result would change a decision about preventing heart disease. Your history and the basic checks above come first.

Ask: “What would we do differently if this result were high, low or normal?”

What a calcium score can and cannot show · AHA: hs-CRP

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Blood pressure over time

Is my blood pressure staying high or changing over time?

What it can show
Several readings taken carefully can show whether your blood pressure stays high, changes over time, or differs at home and at appointments.
What it cannot tell you
One reading cannot describe your usual pressure or explain every reason it may be high or low.
Ask your clinician
“What pattern do you see, and when should I contact you about a reading or change?”
Perimenopause and high blood pressure
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Cholesterol blood test (lipid panel)

What are my cholesterol levels, and have they changed?

What it can show
This blood test usually reports total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides—another type of fat in your blood. Comparing results over time helps you see what has changed.
What it cannot tell you
It cannot show whether plaque—a buildup in artery walls—is already there. Lp(a) and ApoB are not usually included in this standard test.
Ask your clinician
“How have my results changed, and do we need any other information to understand my risk?”
Track blood pressure and cholesterol trends
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Lp(a)

Could a risk I inherited be part of my heart story?

What it can show
Lp(a), pronounced ‘L-P-little-a,’ is a cholesterol-carrying particle. Its level is mostly inherited, and a high level can raise heart disease risk. A separate blood test measures it. Current U.S. guidance recommends testing at least once in adulthood.

Lp(a) is largely inherited, so one measurement is often enough. If an earlier result was intermediate, between clearly low and high, ask whether repeating it could change your risk assessment or prevention plan, particularly after menopause. Pregnancy, kidney disease and an underactive thyroid (hypothyroidism) can also affect the result; your clinician can decide whether and when to repeat it. Menopause alone does not mean you need routine repeat testing.

What it cannot tell you
It cannot show whether you have plaque, explain a symptom, or decide treatment by itself.
Ask your clinician
“Has my Lp(a) been measured, and would the result change how we view my overall risk?”

“I had my Lp(a) checked before. Was it clearly low or high, or was it in an intermediate range? Now that I’m in menopause, should it be repeated?”

“If my Lp(a) is elevated, should my parents, siblings or children be tested?”

What does a high Lp(a) result mean?
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ApoB

Could the number of cholesterol-carrying particles help explain my risk?

What it can show
Particles that can contribute to buildup in artery walls carry a protein called ApoB. Measuring it helps estimate how many of these particles are in your blood. It can add information when the usual cholesterol results do not show the whole picture.
What it cannot tell you
It cannot show whether you already have plaque or a blocked artery. Your symptoms, health history, and other results still matter.
Ask your clinician
“What do my current cholesterol results answer, and would knowing my ApoB change my care?”
ApoB vs. LDL, explained
BEAT

ECG or EKG (heart rhythm recording)

How is my heart beating during this short recording?

What it can show
An electrocardiogram records your heart’s electrical signals. It shows how fast your heart is beating, whether the rhythm is regular, and how the signals travel through your heart during the recording.
What it cannot tell you
A normal result can miss a rhythm problem that comes and goes. It also cannot rule out every artery problem or explain every symptom.
Ask your clinician
“What did this recording tell us? Could it have missed what I feel at other times?”
Can symptoms happen with a normal EKG?
BEAT

Wearable heart rhythm monitor

What rhythm is happening when symptoms occur away from the office?

What it can show
A monitor you wear at home—such as a Holter, patch, or event monitor—records your heart rhythm over a longer period than an office ECG. It can help show what your heart is doing when you feel symptoms.
What it cannot tell you
It does not show your heart valves, pumping strength, or plaque in your heart’s arteries. Symptoms can also have causes unrelated to heart rhythm.
Ask your clinician
“Did I wear the monitor long enough to record one of my episodes?”
Menopause heart palpitations at night
PUMP

Echocardiogram (heart ultrasound)

How is the heart built and working at rest?

What it can show
An echo uses sound waves to make moving pictures of your heart. Done at rest, it can show the heart’s size, how its valves work, and how well it squeezes and fills with blood.
What it cannot tell you
A standard echo taken at rest cannot rule out buildup in the heart’s arteries or a rhythm problem that comes and goes.
Ask your clinician
“What did my echo tell us, and which questions about my heart still need an answer?”
Understand ejection fraction, squeezing and filling on an echo
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Heart artery calcium scan (CAC)

Is there calcium in plaque in my heart’s arteries?

What it can show
A coronary artery calcium scan uses CT images, without an injected dye, to measure calcium in plaque in the arteries that supply your heart. For selected people, it can help when a prevention decision, such as starting a cholesterol medicine, remains uncertain.
What it cannot tell you
A score of zero does not rule out plaque that has no calcium, problems in the heart’s tiny blood vessels, or every cause of chest symptoms. This scan is not right for everyone.
Ask your clinician
“Would the result change my care? What would we do differently if the score were zero or high?”
What does a coronary calcium score mean?
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Stress tests and blood-flow imaging

How does blood flow to my heart respond during stress testing?

What it can show
These tests use exercise or medicines that change the heart’s workload or blood flow. Depending on the test, electrical recordings or heart images can look for signs that the heart muscle is not getting enough blood. Blood-flow imaging is sometimes called perfusion imaging.
What it cannot tell you
Different stress tests answer different questions. A reassuring result does not rule out every cause of symptoms that continue.
Ask your clinician
“Which kind of stress test did I have? What did it measure, and what could it miss?”
What happens after an abnormal stress test?
What does a normal stress test tell me?
POWER

Exercise testing: what your body can do

How does my body respond to exercise?

What it can show
A supervised exercise test can track what you can do, your symptoms, heart rate, and blood pressure. A more detailed test, called cardiopulmonary exercise testing (CPET), also measures breathing and oxygen use during exercise.
What it cannot tell you
Your heart, lungs, muscles, and other parts of your body all affect what you can do. One number cannot explain every reason exercise may feel difficult.
Ask your clinician
“What made me slow down or stop? Was that expected, and what would safe progress look like?”
Why do stairs feel harder in midlife?

Medical sources for this guide.

Prepared by Lisa Zahakos, RPA-C. How HEART RESERVE prepares and checks its educational content.

Bring the question forward

What did my test tell us—and what do we still need to understand?

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