The definition of asthma has been ever changing throughout the past few decades, as new information and levels of understanding are comprehended. Currently, asthma is defined as a form of bronchial disorder caused by inflammation of bronchi. Asthma …show more content…
Patient normally experiences this when they are trying to exhale so in that symptom it is similar to emphysema and chronic bronchitis or COPD. It is characterized by spasmodic contraction of airway smooth muscle, difficulty breathing, wheezing and coughing. In the pathogenesis of asthma, there is a triad of issues includes airways obstruction, smooth muscle hyperplasia with hyperactivity and finally inflammation. In pathophysiology of asthma, Smooth muscle constrict and dilate, when it constricts that narrows the lumen of that airway so not a lot of air is go through and it can dilate to allow air to flow through. Inside the structure of bronchi and the bronchioles, that have a mucosal lining which has the special cells called goblet cells, they are really helpful on the surface, because they produce mucus which collects the irritants in the bacteria and prevents it from going any further in the airway. The mucosal lining …show more content…
Zach and his mother arrived at the children’s ward. Sally reported his symptoms to the nurse and told Zach to try to breath slowly and sit straight, but he was unable to slow down his breath. The nurse meet sally and learn that the patient has medical history of asthma but he was never being hospitalized for that. The nurse observed rapid breathing, pale skin and provide him comfortable position. The nurse under-looks a set of general observations on Zach like chest and trachea observation, in which she noticed slight tracheal tug but not any chest wall recession. She heard expiratory wheeze and prolonged expiration by stethoscope in auscultation. During physical exam, his vital signs were, temperature 37.5, his pulse rate was 130 beats per minute, indicates tachycardia, respirations 37 breaths per minute, indicates tachypnoea, oxygen saturation was 92% and nurse administered 6 litre oxygen by face mask for 45 minutes and decreased the level of oxygen at 4 litres for