Week 3- Breathlessness Flashcards
What is a reliever inhaler?
Relieves symptoms of asthma once they’ve come on
Beta 2 agonist
What is a preventer inhaler?
Prevents symptoms from coming on
Inhaled corticosteroid
What is meant by breathlessness/dyspnoea?
“Uncomfortable need to breathe”
Patient senses respiratory rate increasing and the extra effort they’re making to seek more air
What are the most likely reasons for someone to be breathless? LUNGS
Problem with lungs- COPD, PE, pneumothorax
What are the most likely reasons for someone to be breathless? HEART + CIRCULATION
Problems with the heart or circulation- previous MI leaving issue with left ventricle causing fluid overload in lungs, arrhythmia
What are the most likely reasons for someone to be breathless? OXYGEN TRANSPORT
Problems with oxygen transport- poisoning e.g. CO
What are the most likely reasons for someone to be breathless? ACID-BASE
Problems with acid-base balance- metabolic or respiratory, if enough acid builds up body senses this and puts respiratory rate up, respiratory failure so buildup of carbon dioxide because you’re not breathing it out
What does acute mean and what are some acute causes of breathlessness?
Sudden onset, something changes rapidly
PE, pneumothorax, anaphylaxis, anaemia, MI, COPD, asthma
What does chronic mean and what are some chronic causes of breathlessness?
Over time
Often described as breathlessness when exercising but can eventually occur at rest, increased oxygen requirements can’t be delivered
COPD, asthma, anaemia, heart failure, lung cancer
What is COPD?
Persistent airflow limitation, lungs themselves are damaged, increased mucus and inflammation in airways, progressive
Beta 2 agonist will not cause improvement
Irreversible
Progressive
How does COPD present?
Breathlessness on exertion
Cough
Recurrent chest infections
What are the environmental risk factors for COPD?
Smoking- accounts for 90-95%
Environmental dusts, particles, fumes
Women more susceptible
Asthma
How is COPD diagnosed?
History
Spirometry
Chest X-Ray
Treatment of COPD
Stop smoking
Vaccinate against Influenza, pneumococcus, Covid-19
Pulmonary rehabilitation
Lose weight
Inhalers