Heart failure at home: the daily check, the warning signs and when to call

Heart failure sounds like the heart has stopped. It hasn’t. It means the heart can’t pump as well as the body needs, so blood backs up and fluid collects in the lungs, the legs and other parts of the body.³ Most of the work of living with heart failure happens at home, in a few minutes each morning: a weight, a look at the ankles, a question about breathing. Those minutes can catch trouble early, while a phone call and a change in medicine can still help. This note walks through the daily check, the warning signs and when to call, using guidance from the National Library of Medicine and the American Heart Association.

The short answer

• Weigh every morning, the same way, and write it down.¹
• Call the doctor if the weight goes up more than 2 to 3 pounds in a day or 5 pounds in a week.^1,4
• Check the feet, ankles and legs for swelling, and notice whether breathing is harder than yesterday.¹
• Follow the salt and fluid limits the doctor sets, and take every medicine as prescribed.²
• When a doctor orders it and the person is homebound, Medicare covers home health visits from nurses who teach and watch all of this.⁵

Why the scale matters

Fluid builds up quietly. When the heart can’t keep up, the body holds on to water, and it collects in the feet, the ankles, the legs and the lungs.³ A few pounds of it can arrive before anyone sees a change. Swelling and weight gain are signs that too much fluid is building up in the body.¹

That makes the bathroom scale the most useful tool in the house. A quick gain over a day or two is a reason to call, because it can mean fluid is building up, and fluid caught early is easier to treat.

The morning weight

Weigh every morning when you get up, after using the bathroom and before eating, on the same scale and in similar clothes.¹ Write the number down every day on a chart, so you can see the trend.¹

Call the doctor if the weight goes up more than 2 to 3 pounds in a day or 5 pounds in a week.^1,4 Call too if the person loses a lot of weight.¹

In one picture

Weigh every morning

Write the number down every day on a chart

more than 2 to 3 pounds in a day

5 pounds in a week

Call the doctor

Sources · medlineplus.gov, cpr.heart.org

A few things make the habit stick. Keep the scale in the same spot on a hard floor, not on a rug. Keep the chart and a pen right beside it. If the numbers are hard to read, a scale with a large display helps. If the person can’t stand safely on a scale, tell the nurse, who can suggest another way.

The rest of the morning check

After the weight, a few questions take a minute. Write the answers next to the number.¹

• Are the feet, ankles or legs more swollen than yesterday? Do shoes or socks feel tighter?
• Is breathing harder than yesterday, with activity or at rest?
• Did it take more pillows to sleep, or did the person wake up short of breath?
• Is there a cough that won’t go away?
• Is the person more tired or weaker than usual?
• Were all of yesterday’s medicines taken?

The last question matters more than it seems. Sometimes this simple check is what reminds someone they forgot a pill.¹

The warning signs

The American Heart Association lists these signs of heart failure. When one is new or getting worse, it’s worth a call.³

• Shortness of breath, during activity or at rest
• A cough or wheezing that won’t go away, sometimes with white or pink, blood-tinged mucus
• Swelling in the feet, ankles, legs or belly
• Tiredness that makes everyday things like shopping or climbing stairs hard
• Loss of appetite or nausea, or a feeling of being full
• Confusion or trouble with memory
• A racing or pounding heartbeat
• Sudden weight gain or loss

When to call the doctor today

Call the doctor or the home health nurse the same day for:^1,2,4

• Weight up more than 2 to 3 pounds in a day or 5 pounds in a week
• New or worse swelling in the feet, ankles, legs or belly
• More shortness of breath with activity, or shortness of breath when lying down
• A cough that won’t go away, or wheezing
• Feeling more tired or weak than usual
• Belly pain or tenderness
• A pulse that’s very slow, very fast or not regular
• Symptoms that might be side effects of a medicine

When to call 911

For the most serious symptoms, the American Heart Association’s self-check plan says to call the physician or 911: shortness of breath at rest, a frequent dry, hacking cough, new or worse dizziness or confusion, and trouble sleeping because the person can’t lie flat.⁴ Call 911 right away for chest pain, fainting or severe trouble breathing.

Salt, fluids and medicines

Salt makes the body hold on to water. The doctor may recommend a limit of 1,500 to 2,300 milligrams of sodium a day, and may change which fluids the person drinks or how much.² Ask for the numbers that apply to your loved one and write them on the chart.

• Many foods contain hidden salt, including prepared, canned and frozen foods, soups and preserved foods.² Read labels for sodium, and cook with herbs, lemon or vinegar instead of salt.
• A dietitian can help plan meals, and family members can help keep track.²
• If there’s a fluid limit, measure it. A marked water bottle makes the day’s total easy to see.
• Water pills, called diuretics, help the body get rid of extra fluid. Take them at the same time each day, and not at night, since they make you urinate more.²
• Water pills call for regular checkups of potassium and kidney function.²
• Ask before taking any over-the-counter medicine. Pain relievers like ibuprofen and naproxen can make the body hold on to sodium, which can make heart failure worse.²
• Use a weekly pill organizer, and keep one current list of every medicine.

What home health adds

Medicare covers home health when a doctor orders it, the person needs skilled care part time, and leaving home takes a considerable and taxing effort. Covered home health services cost nothing.⁵ For heart failure, that usually means a nurse who:

• Checks weight, swelling, breathing, heart rate and blood pressure at each visit
• Reviews every medicine the person takes, to catch side effects, interactions, duplicates and doses being missed⁶
• Teaches the person and family the morning check and what each warning sign means
• Calls the doctor when something changes, so treatment can be adjusted early

Physical and occupational therapists can help someone build strength and save energy for the things that matter to them. Medicare covers therapy at home when the conditions for home health are met.⁵

When heart failure gets harder

Heart failure can change over time. If symptoms keep coming back despite treatment, or the person is in and out of the hospital, ask about palliative care. It focuses on comfort and quality of life, and it can be given alongside treatment. In California, Medi-Cal managed care plans must cover palliative care for members with advanced heart failure who meet the state’s criteria.⁷ Later, if the person chooses comfort over treatment meant to fix the heart, hospice can care for them at home.

The family’s part

The person with heart failure isn’t always the best judge of how they’re doing. Fatigue and confusion can hide changes, and it’s easy to get used to a little more swelling each day. A family member who reads the chart each morning, and notices that it took three pillows to sleep instead of two, can be the first to catch a change. You know the person’s normal better than anyone. If something seems off, call.

Questions families ask

Why weigh every day if he looks fine?

Fluid can build up before it shows. A gain of more than 2 to 3 pounds in a day or 5 pounds in a week is a reason to call the doctor, even if he feels well.¹

What time of day should she weigh herself?

In the morning when she gets up, after using the bathroom and before eating, on the same scale and in similar clothes.¹

Can he take ibuprofen for his knees?

Ask the doctor first. Ibuprofen and naproxen can make the body hold on to sodium, which can make heart failure worse.²

Her water pill keeps her up at night. Can she take it earlier?

Ask the doctor or nurse. The usual advice is to take water pills at the same time each day, and not at night, because they make you urinate more.²

Does Medicare pay for a nurse to check on him at home?

Yes, when a doctor orders home health, he needs skilled care part time and he’s homebound. Covered home health services cost nothing.⁵

Sources

Sources · 7 references

1. MedlinePlus, “Heart failure - home monitoring,” National Library of Medicine, reviewed July 14, 2024. medlineplus.gov (opens in a new tab)
2. MedlinePlus, “Heart failure - fluids and diuretics,” National Library of Medicine, reviewed July 14, 2024. medlineplus.gov (opens in a new tab)
3. American Heart Association, “Heart Failure Signs and Symptoms,” last reviewed May 29, 2025. heart.org (opens in a new tab)
4. American Heart Association, “Self-Check Plan for HF Management,” 2024. cpr.heart.org (opens in a new tab)
5. Medicare.gov, “Home health services.” Centers for Medicare & Medicaid Services. medicare.gov (opens in a new tab)
6. 42 CFR 484.55, “Condition of participation: Comprehensive assessment of patients.” Legal Information Institute, Cornell Law School. law.cornell.edu (opens in a new tab)
7. California Department of Health Care Services, All Plan Letter 18-020, “Palliative Care,” December 7, 2018. dhcs.ca.gov (opens in a new tab)