Cystic Fibrosis: Symptoms, Diagnosis and Physiotherapy

Causes and symptoms of cystic fibrosis

NHS cystic-fibrosis information describes an inherited genetic condition in which thick mucus affects the lungs and digestive system. A child with CF inherits an altered gene copy from each parent; carriers can have no symptoms. Genetic counselling can help families understand testing and reproductive options.

Symptoms may include persistent cough, repeated chest infections, digestive problems and difficulty gaining weight or growing. These symptoms have other possible causes, so they need clinical evaluation rather than diagnosis from an online checklist.

How cystic fibrosis is diagnosed

The Cystic Fibrosis Foundation testing guide explains that diagnosis combines clinical evaluation with tests such as sweat chloride and genetic testing. Newborn screening can identify babies who need further assessment; a positive screen is not itself a confirmed CF diagnosis.

Screening programmes and access to testing vary by location. Ask a clinician about symptoms or family history even if the condition was not found at birth. Bring previous test results and ask how uncertain findings will be followed up.

Treatment is coordinated by the CF team

Specialist care may involve doctors, nurses, a physiotherapist and a dietitian. Depending on assessed needs, treatment can include CFTR-modulator medicines, inhaled treatment, antibiotics for infection, airway clearance and nutritional support. The treating team decides which options are suitable.

Keep an up-to-date treatment list and ask how medicines and physiotherapy fit together. Discuss difficulty completing the plan, changes in appetite or weight, and symptoms that affect school, work or sleep. A generic home routine cannot replace the specialist plan.

Airway-clearance techniques need teaching and review

The Cystic Fibrosis Foundation airway-clearance guide describes techniques such as active cycle of breathing, positive expiratory pressure and assisted chest physiotherapy. They aim to help move mucus so it can be cleared by coughing or huffing.

Your CF team should recommend a technique, teach it and review whether it works for you. Children may need caregiver assistance. Ask about the order of inhaled treatments, how to care for equipment and how the plan changes when you are unwell. Do not choose a device or copy a drainage position without that advice.

• Can someone watch my technique and check it?
• What should I do if treatment causes discomfort or is difficult to complete?
• Which changes in cough, mucus or breathing should I report?
• How will the treatment burden and plan be reviewed?

Plan activity and reduce cross-infection risk

Cystic Fibrosis Foundation fitness-planning guidance recommends working with the CF team to select activities that fit health, ability and interests. Discuss exercise progression and any monitoring needed. Exercise belongs alongside your prescribed treatment plan.

Cystic Fibrosis Foundation infection-prevention information explains how germs can pass between people with CF. Follow your centre's precautions, including hand hygiene and separation from other people with CF in clinical settings. Ask about practical precautions at school, work or the gym.

If your CF team recommends additional rehabilitation support, our respiratory rehabilitation service can discuss suitability alongside that plan. The home physiotherapy guide helps you prepare instructions and questions. Our HMPV guide discusses respiratory infection and when symptoms need medical care.

Breathing symptoms needing urgent medical attention

Seek prompt medical advice for worsening breathing or a change from your usual condition, and follow your CF team's instructions. NHS breathlessness guidance identifies severe breathing difficulty, blue or grey lips and sudden confusion as emergencies.

NHS coughing-up-blood guidance advises urgent assessment even for small blood streaks. More than a few spots, or blood with breathing difficulty, chest pain or a very fast heartbeat, needs emergency care. Do not treat these symptoms by increasing airway-clearance exercises yourself.