Respiratory Flashcards
COPD, Asthma
which patients with copd need inhaled steroids?
ones where FEV1 < 50% of predicted AND
have had at least 2 exacerbations in 1 year (that needed treatment with abx or steroids)
Long term oxygen therapy is needed in which copd patients?
with;
PaO2 < 7.3kpa and stable
pao2 ; 7.3 - 8 with complications i.e;
polycythaemia (v. high Hb), pulmonary hypertension, peripheral oedema, nocturnal hypoxaemia
What is part of a patients CO2 self management plan?
- Lifestyle changes;
First step = stop smoking, nicotine replacement.
Healthy diet. breathing and coughing excercises. excercise plan. - Drug list + instructions
what to take when
Pupose of inhaled steroids in copd?
reduce the median annual EXACERBATION rate!
What does pulmonary rehabilitation involve?
its a course where patients are taught exercises and knowledge to help manage breathlessness
What is asthma
generalised airway narrowing that goes with treatment or spontaneously
How does one diagnose asthma?
History Tests; 1. Peak flow - variability by time 2. Spirometry w/inhaled bronchodilators 3. Peak flow - oral steroids 4. Exercise test
Some features of asthma uncommon in COPD?
FH of asthma or allergic diseases
Being woken at night due to breathlessness
improvement of FEV1 by 400mls on use of bronchodilators or prednisolone
peak flow shows diurnal or daily variation
Treatment for asthma?
Outdated as of 2022
1
What a important features that signify that asthma is under control
doesnt disturb sleep
peak flow above 85% of personal best
doesnt restrict daily activities
if peak flow falls between 70-85% asthma getting worse!
Severe asthma is characterised by what peak flow % ?
name an steroid that can be taken in this instance?
50-70%
prednisolone
What constitutes an emergency situation in relation to asthma?
what should a patient do?
worsening symptoms. peak flow 50% or less.
take 8 (5mg) prednisolone tablets and contact ambulance
What tests to do to differentiate asthma and COPD?
spirometry
home peak flow
excercise test
low/high dose steroid + peak flow
Superior Vena Cava syndrome occurs due to SVC-Obstruction name some common causes of this?
malignancy - i.e. breast cancer with mets.
pacemaker leads
central venous lines
Symptoms of svc obstruction?
exacerbation factors?
Common symptoms are facial swelling and arm swelling as seen, as well as dyspnoea, cough and facial plethora.
lying down or bending forward