Home Oxygen Treatment

Overview

Home oxygen treatment means using oxygen at home through a machine, cylinder, or container. It is prescribed when tests show that the oxygen level in your blood is lower than normal. Oxygen is a treatment, not a cure. It can help your heart, brain, and muscles work better, but not everyone who feels breathless needs it.

Home oxygen is fairly common for people with advanced long-term lung or heart conditions. It is much less common than breathlessness itself, because most breathlessness is not caused by low oxygen.

It can affect adults and sometimes children with long-term lung disease, heart failure, or other conditions that lower blood oxygen. It is usually started after a specialist assessment.

Symptoms

Common symptoms

• Breathlessness that gets worse with activity, or at rest in more severe cases
• Feeling very tired or weak
• Dizziness or light-headedness
• Confusion, poor memory, or unusual sleepiness
• Blue or grey lips, fingertips, or face
• Morning headaches
• Swollen ankles or legs
• Poor sleep or waking often

Symptoms in children

• Fast breathing or grunting
• Flaring nostrils or sucking in around the ribs
• Blue or grey lips or tongue
• Poor feeding or slow weight gain
• Unusual sleepiness or floppiness
• Long pauses in breathing

Symptoms in older adults

• New confusion or memory problems
• Falls or unsteadiness
• Extreme tiredness
• Breathlessness when dressing or walking short distances
• Swelling in the ankles or legs
• Poor appetite
• Blue or grey lips

Causes

Main causes

• Low oxygen is not a disease itself. It is a sign that the lungs, heart, or breathing control is not working as well as it should.
• COPD (chronic obstructive pulmonary disease) - long-term lung damage that makes breathing harder
• Pulmonary fibrosis - scarring of lung tissue
• Cystic fibrosis and bronchiectasis - conditions that cause thick mucus and repeated lung infections
• Heart failure - when the heart cannot pump blood as well as it should
• Pulmonary hypertension - high blood pressure in the lungs
• Sleep-related breathing problems
• Severe long-term effects of lung infections
• Some congenital heart or lung conditions in children

Risk factors

• Smoking or exposure to tobacco smoke
• Working or living with dust, fumes, or air pollution
• Being born prematurely
• Family history of lung disease
• Long-term heart disease
• Repeated lung infections

When to see a doctor

See a doctor urgently if:

• You have fever, chills, or feel more unwell than usual
• You are more breathless than normal or your usual activities feel much harder
• Your mucus changes colour or amount
• Swelling in your ankles or legs gets worse
• You keep getting morning headaches
• Your oxygen equipment stops working and you have no backup
• Your oxygen levels are below your prescribed target if you check them at home

Book a routine appointment if:

• You are due a review of your oxygen prescription
• You want to travel or move home
• Your equipment needs replacing or repairing
• You have questions about safety or using oxygen in public
• You feel more tired or less able to do daily tasks over time
• Your skin feels sore where tubing or a mask touches

Diagnosis

Your doctor will ask about your breathing, health, and daily life. They will check your oxygen level with a small clip on your finger or earlobe. Because oxygen levels can change, tests are usually done when you are well and stable, not during a sudden illness. You may be tested at rest, while walking, and during sleep.

Tests that may be done

• Pulse oximetry - a small clip on your finger or earlobe
• Arterial blood gas - a small blood sample, usually from the wrist, to measure oxygen and carbon dioxide
• Six-minute walk test - walking while your oxygen is checked
• Sleep study - checking your oxygen overnight
• Lung function tests - breathing tests
• Chest X-ray or CT scan - pictures of the lungs
• Echocardiogram - an ultrasound of the heart
• Blood tests

What to expect at your appointment

The assessment can take more than one visit. Your team will check whether oxygen helps your levels at rest, during walking, or during sleep. They will also talk with you about safety at home and what equipment is available. You should get clear written instructions and a review plan.

Treatment

Home oxygen is a prescribed therapy that raises the amount of oxygen in your blood. It can help your heart, brain, and muscles work better. It is used alongside treatment for the condition affecting your lungs or heart. Your team will set the flow rate and how many hours a day you should use it.

Self-care at home

• Use oxygen exactly as prescribed. Do not change the flow rate or hours without speaking to your healthcare team.
• Never smoke or let anyone smoke near you while oxygen is in use. Keep oxygen away from open flames, sparks, and heat sources.
• Keep the machine and tubing clean, and follow your supplier's instructions. Check that tubing is not kinked and does not cause a trip hazard.
• Tell your electricity supplier if you rely on a concentrator, and have a backup plan for power cuts.
• Keep a backup supply and a contact number for equipment problems.
• Ask before travelling. You may need portable oxygen and a letter for travel.
• Check your skin where tubing or a mask touches. Ask your team about sore areas.
• Keep creams, oils, and sprays away from oxygen equipment. Ask your team if you are unsure about a product.

Medical treatments

Your care team treats the condition causing low oxygen. This may include exercise-based pulmonary rehabilitation, help to stop smoking, vaccines, and treatment for lung or heart disease. Oxygen is added only when tests show it can help. Your team sets the flow rate and hours, and reviews the plan regularly.

When is surgery considered?

Surgery is not a usual part of home oxygen treatment. In some severe lung conditions, specialists may discuss lung transplant or other procedures. This is rare and decided case by case.

Living with this condition

Plan your day around your oxygen. Use a portable system if one is prescribed so you can go out. Keep paths clear to avoid trips. Tell visitors and carers not to smoke near you. Have a plan for power cuts and equipment problems, and carry your oxygen supplier's contact details.

Lifestyle tips

• Do not smoke or vape near oxygen, and avoid second-hand smoke
• Keep oxygen away from open flames, candles, gas stoves, and sparks
• Avoid aerosol sprays and strong fumes near your equipment
• Stay as active as you safely can
• Get regular sleep and rest
• Ask your team which vaccines are right for you
• Plan travel ahead and ask about portable oxygen
• Tell all healthcare staff that you use home oxygen

Diet and exercise

Eat regular, balanced meals. If breathlessness makes eating hard, try smaller meals more often. Gentle activity, such as short walks, can help your muscles use oxygen better. Ask your team about pulmonary rehabilitation, a supervised exercise and education programme. Stop and rest if you feel chest pain, severe breathlessness, or dizziness.

Mental health and emotional wellbeing

Using oxygen can feel embarrassing or isolating. It may cause anxiety about going out or power cuts. These feelings are common. Talk to your team; counselling and support groups can help. If you feel hopeless or have thoughts of harming yourself, contact your local emergency number or a crisis support service right away.

Prevention

Home oxygen treatment itself cannot be prevented because it is a treatment. The need for it may be lowered by not smoking, avoiding lung irritants, staying active, and treating heart and lung conditions early. Some causes cannot be prevented.

Vaccines

Ask your healthcare team which vaccines are recommended for you. Vaccines can help prevent lung infections that can make low oxygen worse.

Screening programmes

There is no routine screening test for needing home oxygen. If you have a long-term lung or heart condition and notice new breathlessness, tiredness, or confusion, ask your team to check your oxygen levels.

Complications

If left untreated

• Low oxygen can strain the heart and worsen heart failure
• It can cause confusion, poor memory, and extreme tiredness
• It can reduce sleep quality and make daily activity harder
• Over time, continued low oxygen can damage organs and increase the risk of serious illness

Long-term outlook

Many people live well with home oxygen. It can improve energy, breathlessness, and quality of life, and in some conditions it helps people live longer. Your team will review you regularly to make sure it is still helping and to adjust the plan.

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