CVR 31 Pulmonary pharmacology 2 Flashcards
In the management of an acute asthma attack begins with inhaled _____ as required, with single _____ for severe.
In Aand E a nebulised _____ with IV _______.
If life threatening use _____ iV with IV ______ and possible ________.
Beta 2 agonist nebuliser Beta 2 prednisalone magnesium sulphate salbuatmol intubation
Symtpoms of COPD
dyspnoea, cough, sputum, chest infections, emphysema.
Chronic bronchititis is decreased _____, ______, and ____ mucus.
luminal diameter
wall thickening
intraluminal
Emphysema is enlargment of______ distal to bronchioles. _____ destuction and loss of ______.
airways
acinar
lung recoil
Differences between stage 3 and 4 COPD
30-50% stage 3 with severe restraint of respiration
Lower than 30% very severe and risky .
Anti trypsin dificiency is an ______ disordery of the ______ gene on chromosome ___. The alpha 1 antitrypsin is a _____ inhibitor which is important for _______ neutrophil elastase and fights against ______. PAtients are also at risk of ______.
autosomal dominant serpina1 14 serine protease inactivating neutrophil elastase elastolytic burden liver disorders and skin disease and vasculitis.
What are some standard COPD treatments
augmentation - pooled anti 1 alpha
gene therapy
hepaptic secretion
inhibit elastase neutrophils
Differences in type 1 and type 2 respiratory failure?
type 1 is mismatched perfusion with 02 low and c02 low or normal from asthma or PE. high 02 Tx
Type 2 is hypoventilation with 02 low and co2 high from COPD. Low 02 tx
How do antitussives work
centrally, opiods increase threshold in medulla cough centre.
Codiene is a good suppressant but poor with _______.
Dextramethorphan does not cause _____ and ______ mucocillary clearance. Peripherallly acting ______ to cough receptords
mucocilliary clearance
addiction
lowers.
reduce sensitivity
Expectorants increase fluidity of secretions by ______ and causing ______ of _____. Examples are ____ ,_____ ._____.
irritating gastric mucosa reflex stimulation goblet cells iodide guaicols creosotes
________ break disulpide cross linking and reduce bronchial _______. Example.
mucolytics
carbocysteine
What is teh only mucolytic agent with proven benefit
Dornase alpha breaks down DNA tangles in mucus for CF.