heart failure specialist referral tests
Overview
When your regular doctor or emergency team suspects you might have heart failure, they may refer you to a heart specialist. The specialist will run several tests to see how well your heart is working, find out what might be causing your symptoms, and plan the best care for you. These are called heart failure referral tests.
Key facts
- Heart failure does not mean your heart has stopped. It means the heart is not pumping blood as well as it should.
- A specialist referral usually happens after a routine check or a hospital visit for symptoms such as shortness of breath or swelling in your legs.
- Most heart failure tests are painless or cause only mild discomfort, and you can often go home the same day.
Heart failure is very common. Millions of people around the world live with heart failure, and it is one of the most common reasons adults are referred to a cardiologist.
Heart failure can affect anyone, but it is more common in adults over 65, people with high blood pressure or coronary artery disease, and those who have had a heart attack.
Symptoms
- Sudden severe shortness of breath
- Chest pain or pressure that does not go away
- Fainting or collapse
- Sudden rapid or irregular heartbeat with faintness
- ⚠New or worsening swelling in your legs or belly
- ⚠Unexplained weight gain of 2–3 kilograms in a few days
- ⚠Constant cough producing pink or frothy phlegm
- ⚠Unusual confusion or extreme drowsiness
Common symptoms
- Shortness of breath, especially with activity or while lying flat
- Swelling in your feet, ankles, or legs
- Unusual tiredness or weakness
- Rapid weight gain over a few days from fluid build-up
- Persistent cough or wheezing
Symptoms in children
- Poor weight gain or slow growth
- Unexplained tiredness or drowsiness
- Fast breathing or trouble breathing during feeding
- Excessive sweating, especially during feeds
Symptoms in older adults
- Increased confusion or memory problems
- Reduced ability to carry out everyday tasks
- Unexpected falls or dizziness
- Loss of appetite or weight loss
Causes
Main causes
- Damage to the heart muscle from a previous heart attack
- High blood pressure that makes the heart work harder
- Problems with heart valves
- Cardiomyopathy, which is a disease of the heart muscle
- Excessive alcohol use or certain infections
Risk factors
- Being over 65
- Having diabetes or obesity
- Smoking
- A family history of heart failure
- Lack of regular physical activity
When to see a doctor
See a doctor urgently if:
- If you have any of the emergency signs above, call emergency services immediately.
- If you have new swelling or cannot do simple activities without breathlessness, contact your GP or cardiology team the same day.
Book a routine appointment if:
- If you already have a heart condition and notice your symptoms are changing, book an appointment with your specialist team.
- If you are due for routine heart checks, such as blood pressure or cholesterol reviews.
Diagnosis
A heart failure specialist will review your medical history, listen to your heart and lungs, and order a series of tests. These tests help confirm whether heart failure is present, how severe it is, and what is causing it.
Tests that may be done
- Blood tests, including BNP, which is a chemical that rises when the heart is strained
- Electrocardiogram (ECG) – a quick test that records the electrical activity of your heart
- Chest X-ray – to see the size and shape of your heart and to check for fluid in your lungs
- Echocardiogram (echo) – an ultrasound scan that shows how well your heart pumps and how your valves work
- Stress test – measuring your heart while you walk or cycle
- Cardiac MRI – detailed images of your heart muscle
- Cardiac catheterization (coronary angiogram) – a thin tube used to check blood flow in your coronary arteries
What to expect at your appointment
Most tests are done as an outpatient. You may need to adjust some medicines temporarily a day or two before certain tests, such as a stress test. Your specialist will give you clear instructions. Some tests involve a small tube placed in the groin or wrist; you will be offered a local anaesthetic to numb the area.
Treatment
Treatment for heart failure focuses on improving your symptoms, slowing the disease, and helping you live well. Your specialist will create a plan tailored just for you. This usually involves medicines, lifestyle changes, and sometimes a procedure or device.
Self-care at home
- Weigh yourself daily at the same time to spot fluid build-up early
- Follow a heart-healthy diet low in salt
- Quit smoking and avoid alcohol
- Take your medicines exactly as prescribed
- Get support for your emotional health
Medical treatments
Medicines for heart failure are chosen by your doctor. They may include drugs to reduce fluid build-up, relax blood vessels, slow the heart rate, or help the heart muscle contract more forcefully. Always ask your doctor or pharmacist about your medicines and take them exactly as prescribed. In some cases, a specialist may recommend a device such as a pacemaker or an implantable defibrillator.
When is surgery considered?
Some people may benefit from heart surgery, such as repairing or replacing a heart valve, or bypassing blocked arteries. In advanced heart failure, a heart transplant or a mechanical pump, called a ventricular assist device, may be considered for carefully selected patients.
Living with this condition
Living with heart failure means paying attention to your body. Monitor your weight, note any changes in breathlessness, and get support from your healthcare team. Small daily routines, like a low-salt diet and gentle activity, can make a big difference.
Lifestyle tips
- Weigh yourself daily and record the number
- Keep salt intake low, under 6 grams per day
- Stay physically active within your limits, such as short walks or gentle cycling
- Plan rest periods during the day
- Join a heart failure support or cardiac rehabilitation group if available
Diet and exercise
A heart-friendly diet includes plenty of vegetables, fruits, whole grains, lean proteins, and healthy fats. Ask your doctor or a dietitian for specific advice. Exercise, like walking or resistance training, should be done as part of a cardiac rehabilitation programme, not without guidance.
Mental health and emotional wellbeing
Heart failure can feel overwhelming and may lead to anxiety or depression. It is important to talk to your healthcare team about how you are feeling. Seeking emotional support, whether from a counsellor, support group, or trusted friend, is a sign of strength.
Prevention
Heart failure can often be prevented by managing high blood pressure, diabetes, and cholesterol. Living a heart-healthy lifestyle and attending regular check-ups can reduce your risk.
Vaccines
Flu, pneumonia, and COVID-19 vaccines are recommended for people with heart failure. Speak to your doctor or pharmacist about which vaccines you should have.
Screening programmes
If you have a family history of heart muscle disease or heart failure, your doctor may recommend regular heart check-ups. Population-wide screening is not routinely recommended for everyone.
Complications
If left untreated
- Worsening symptoms and reduced quality of life
- Fluid build-up that makes it hard to breathe or can fill the lungs
- Abnormal heart rhythms that can be dangerous
- Hospital admissions due to acute heart failure episodes
- Damage to other organs, such as the kidneys, from low blood flow
Long-term outlook
Many people live comfortably with heart failure for years, especially when they receive good medical care and make lifestyle adjustments. Some people's heart function improves significantly with treatment. The outlook depends on the cause and how early treatment begins, so do not lose hope.
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Always verify with your doctor
Health guidance differs by country and region. This page is general education and may not match the guidelines, medicines, or practice where you live. Discuss your concerns with your own doctor or healthcare provider, and follow local guidance where it exists.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Sources and guidance
No guideline names this topic
No health guideline or clinical chapter that names this exact topic is cited here. This page is for general education and information only. It is not a diagnosis, a treatment plan, or personal medical advice. Check with your own doctor and follow their advice. If symptoms are severe, sudden, or worrying, get medical care promptly, and call your local emergency number in an emergency. Ruqelo LLC is not responsible for medical or legal outcomes from decisions based on this information.
Last updated: July 31, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
Guidance may differ by country or region. Confirm local recommendations with a qualified healthcare provider.