week 13 asthma and inflammation Flashcards
what do asthma patients experience
increase residual volume and decrease in forced expiratory volume
what are the two things that happen in someone who has asthma
the lining of the airways becomes red and swollen (inflammation)
the smooth muscle around the airways tighten
what are the 4 main categories of things that cause asthma attacks
allergens
irritants
exercise
viral infections
what are some aspects of the early phase of asthma pathogenesis
- bronchoconstriction
what are some aspects of the late phase of asthma pathogenesis
- inflammation
such as mucus hypersecretion - airway hyper-responsiveness
what are the 2 pharmacological interventions
- relievers (bronchodilators
- preventors (anti-inflammatory) stops it
what are the main relievers
- inhaled beta 2 agonists
they cause smooth muscle relaxation
SABA - short-acting beta 2 recptor agonist causes bronchodilation 2-5 hours VENTOLIN
LABA - long acting beta 2 receptors
12+ takes 40min to react - methylxanthines
can easily reach toxicity so not as commonly used - muscarinic antagonist
prevent by another mechanism bronchodilator
what are the main preventors
- leukotriene antagonist
relaxes smooth muscle - corticosteriods
blocks inflammation
what are the relievers for people who are very sensitive to and need more the other relievers and preventors?
- antibody treatment to immunoglobin which reduces the stimulations of mast cells and release of inflammatory mediators