Respiratory Drugs Flashcards
What are respiratory diseases
Asthma, COPS, upper resp tract infection
Drug groups for treatment of RDs
Adrenergic drug for bronchodilation and corticosteroids for inflammation
What are the classifications of RDs
non-infectious (asthma and COPD), viral or bacterial respiratory infection
Difference between asthma and COPD (reversibility of airway obstruction)
A: reversible
C: irreversible
Causes of asthma attacks
Allergen, pollen, exercise, stress, or upper resp tract infection
What is status asthmaticus
Is the persistent life-threatening bronchospasm drug therapy
What are the signs of asthma
Wheezing and shortness of breath
What are the two main mechanisms of COPD
- chronic inflammation of the airway and excessive sputum production
- alveolar destruction with airway space enlargement and collapse
What controls respiration
Chemoreceptors, mechanoreceptors, behavioural
Chemoreceptors are the main stimulus for respiration. Breathing is stimulated by? And in COPD
By the increase of CO2 pressure.
By the decrease of O2 Pressure for COPD
Mechanorecptotes detect changes in
Flow, pressure or volume
Behavioural controls of receptors pertain to
Emotional affective condition of the client such as anxiety, pain, or general discomfort may cause ventilation that is excessive for the metabolic demand of the body
How are respiratory drugs delivered to the lungs? And what are they
Directly through inhalation devices.
Beta 2 agonists, anticholinergics/antimuscarinics, corticosteroids
Other resp drugs than direct
Leukotrine modifiers, methylxanthines, Anti-IgE antibodies
What is the difference between COPD and asthma drugs
When it is administered. As the same drugs are used for both
What are the advantages of inhalation devices
- directly to the bronchioles
- greater than oral dose
- accurate measurement
- rapid and predictable onset
- compact, portable and sterile
Beta agonists work by the stimulation of
Beta receptors in the lungs
The activation of beta receptors result in an accumulation of __________ in the smooth muscles, and causes ___________
Cyclic adenosine monophosphate (cAMP), relaxation of smooth muscles
This type of beta agonist produce fewer cardiac side effects
Selective
What are side effects of beta agonists
Nervousness, tachycardia, xerostomia
What are the two types of beta agonists
Short and long acting
Short acting beta agonists are used for the treatment of? What is the drug called
Both asthma and COPD. Salbutamol