Chap 12 and 15 Flashcards
Connective tissue cells that contain heparin and histamine
Mast cells
Cromolyn is a
Mast cell stabalizer
Prophylactic is a
treatment for asthma
Chemical mediators that cause inflammation are called
leukotrienes
an agent that blocks the inflammatory response in asthma is called an
antileukotriene
IgE
is a gamma globulin that is produced by cells in the resp tract
Alternatives to low dose corticosteroids in step 2 asthma include
Cromolyn-like drugs and antileukotrienes
in infants and children, cromolyn sodium is an
alternative to inhaled corticosteroids in step 2 asthma because of their safety profiles
All the nonsteroidal antiasthma drugs described in this chapter are what and not what and should never be used when
Controllers, not relievers, and should never be used during an acute exacerbation of asthma
Describe a clinical situation in which the use of a controller medication is indicated
Patient is using a rescue B2 agonist more than 2x/week (i.e in step 2 asthma)
Controllers or relievers? Inhaled corticosteroids Oral corticosteroids Leukotriene modifiers cromlyn sodium Inhaled short-acting adrenergic bronchodilators
R C C C R
Inhaled corticosteroids
Relievers
Oral corticosteroids
Controllers
Leukotriene modifiers
Controllers
Cromolyn sodium
Controllers
Inhaled short acting adrenergic bronchodilators
relievers
3 compenents of asthma
Acute asthma attack, Hyperresponsiveness of airway to various stimule, persistent inflammation thats now appreciated or becomes worse
3 modes of action of cromolyn sodium
antiasthmatic, antiallergic, mast cell stabalizer
How lond does cromolyn sodium use before reducing the concomitant therapy of bronchodilator or steroid use
2 to 4 weeks
Cromolyn has no bronchodilating action and should not be used during acute bronchospasm T/F
false
3 antileukotriene agents that have been approved for use
Zileuton (zyflo), Montelukast (Singulair), Zafirlukast (Accolate)
Indication for Zileuton (Zyflo)
Prophylaxis and chronix treatment of asthma
Zyflo is approved for children ___ years of age and older
12
The recommended dosage of Zyflo for asthma is
600mg tab QID
Two drugs that Zyflo interacts with are
theophyline and warfarin
Accolate has been approved for children aged
5 years and older
Accolate inhibits asthma reaction induced by
exercise, cold air, allergen, and aspirin
The dose of accolate for children 5-11 is to take an oral ___ mg tab twice daily; and older, an oral ___mg tab to take twice daily is available
younger 10mg twice daily, older 20mg tab twice daily
Instruct the child to take accolate when
1 hour before eating or 2 hours after eating because food reduces mean bioavailability
Singular has been approved for ages
6 months and older- 5 years (2 or older)
Singulair is available in what forms
tablet and granule form and can be taken with or without meals
Singular metabolism is accomplished primarily by the ___ and exreted by the
metabolized-liver, exreted-bile
In moderate asthma, a combination of what results in greater lung function
steroids and antileukotrienes
Triggers for which antileukotrienes are particularly useful in controlling asthma
Exercise induced asthma, Aspirin Induced asthma, and allergen induced asthma
Asthma guidelines agree that corticosteroids..
are the most effective antiinflammatory drugs for use in asthma, and they have broader antiinflammatory activity than the more limited effect of the antileukotrienes
A link appears to exist between resp syncytial virus and asthma. The use of____ blocks these medicatiors in asthma, as well as in RSV infections
Montelukast
Briefly describe the mechanism of action of omalizumab (xolair)
Reduces the mediators that can be released in an allergic reaction by blocking the binding of IgE to IgE receptors on surfaces of mast cells and basophils
Xolair is not a replacement for corticosteroids T/F
True
Xolair is a prophylactic agent for uncontrolled moderate to severe persistent asthma T/F
True
Asthma rescue agens may need to be increased with the use of Xolair T/F
False
Exposure to cat asthma attack
Extrinsic
Airway obstruction that occurs with asthma is the resule of
- Bronchoconstriction
- Mucosal swelling
- Increased secretion prod
- Excessive blood flow to the lungs
- Bronchoconstriction
2. Mucosal swelling
Release of cytokines during an allergic response does what
Endothelial adhesion molecules are upregulated
Which of the following is a mast cell stabilizer
- Cromolyn sodium
- Montelukast
- Zatirlukast
- Omalizumab
- Cromolyn
- Montelukast
- Zatirlukast