I want you to clarify on a number of issues that I found insufficiently addressed. In spite of being proficient in this course, I fail to understand what you mean by saying that asthma is characterized by unrelenting airway hyperactivity and airway remodeling. Can you please provide me with an explanation of what you mean by these two phrases; airway remodeling and unrelenting airway hyperactivity? It is true that medics attribute asthma to genetic causes. Environmental factors too are very influential to the development of asthma particularly in children.
Regarding pulmonary oedema, I agree with you that the primary cause is the accumulation of fluid in the lungs. The fluid causes blockage that prevents the efficient exchange of gases across the alveoli. You have identified three factors; flow, filter, and fluid as the physiological factors of pulmonary oedema. Flow refers to the heart’s ability to pump blood for circulation, but what of the other two factors? How do they relate to the disease?
I have also learnt that it is difficult to differentiate asthma from mild pulmonary oedema. It, in fact, becomes complicated when a patient has both diseases. Treating asthma in such a case can be very hard, and it is only the presence of conditions such as acid reflux and heart failure that give leads. Medics can end up treating the symptoms that inadequately counters the disease. The last clarification I need is why the older people have a higher risk of contracting the diseases than the young ones?
