Respiratory diseases Flashcards
Signs of chronic bronchitis
JVD (blood beginning to back up in the vena cava due to increased workload of the heart/narrowed capillaries/pulmonary hyptertension)
Pedal edma
Acities
Blue bloater
What makes bronchitis chronic?
Symptomatic for several months over 2 years
How does bronchitis occurs?
Increased mucus production
Mucus blockes bronchioles which decreases ability to ventilate
Aveoli retain CO2, decreased oxygenation and decreased aveoli ventilation
This is due to the decreased concentration gradient
[CO2]->H+ and bronchitis
This is why bronchitis patients breathing fast, to blow off CO2 and increase blood acidity
How does chronic bronchitis lead to pulmonary hypertension?
Chronic bronchitis causes capillaries to narrow due to scar tissue (from surface tension at aveoli). Therefore, the resistance increases
The scaring to the type 1 and type 2 cells for emphysema causes___
The aveoli to become less stretchy
Decreased elastcity
Decreased recoil
Due to decreased elasticity-more
residual volume, because less elasticity and recoil
Polycyhemia
Increase in red blood cell production to become more oxygenated (see with emphysema patients)
Why do you have to be careful giving O2 to COPD patients?
Some (around 10% of) COPD patients have a desensitized hypercarbic drive so use hypoxic drive
Therefore, the O2 can knock out drive (look at the chemoreceptors on aortic/carotid arch)
S/S of respiratory infection
Febrile, cough (sputum-yellow/green), rhonchi, flushed/dry, wheezing? gradual onset
Infectous process causes ___ to secrete mucus
Goblet cells
What contributes to the color of mucus?
WBCs
Hemoptysis
Blood tinged sputum
Tb patient population
Immocompromized
Communial living
Poor healthcare
ARDS
Acute respiratory distress syndrome