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Respiratory - Lawes
Chapter 76 Key Points
25
Nursing
Undergraduate 3
09/03/2014

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Term
Asthma is a chronic inflammatory disease characterized by
Definition
inflammation of the airways, bronchial hyperreactivity, and bronchospasm.
Term
What is often an underlying cause of Asthma?
Definition
Allergies
Term
How are most drugs administered for asthma?
Definition
inhalation
Term
Why are drugs for asthma administered by inhalation?
Definition
Because this route increases therapeutic effects, reduces systemic effects, and facilitates rapid relief. of acute attacks.
Term
What are the 3 devices used for inhalation?
Definition
metered dose inhaler(MDI)
dry powder inhaler (DPI)
nebulizer
Term
What are the most effective antiasthma drugs available?
Definition
Glucocorticoids
Term
What do Glucocorticoids do?
Definition
reduce symptoms of asthma by suppressing inflammation.
Term
What is an added bonus of Glucocorticoids?
Definition
they promote synthesis of bronchial beta2 receptors, and increase their responsiveness to beta2 agonists.
Term
WHY are Glucocorticoids used?
Definition
longterm prophylaxis of asthma... not for aborting aborting an ongoing attack. Administered on a fixed schedule, not a PRN.
Term
Glucocorticoids should only be administered by inhalation if?
Definition
Asthma is not severe.
Term
What are the principal side effects of glucocorticoids?
Definition
oropharyngeal candidisis and dysphonia.
Term
How do you minimize the effects of oropharyngeal candidisis and dysphonia when administering glucocorticoids?
Definition
By using a spacer and gargling after use.
Term
How do you minimize bone loss during clucocorticoids use?
Definition
Dosage should be as low as possible. patients should perform regular weight-bearing exercise and should insure adequate intake of calcium and vitamin D.
Term
How do inhaled clucocorticoids effect growth?
Definition
Can slow growth rate of children, but they do not reduce adult height.
Term
Prolonged therapy with oral glucocoritcoids can cause serious adverse effects. What are they? (5)
Definition
adrenal suppression
ostioporosis
hyperglycemia
peptic ulcer disease
growth suppression
Term
Due to oral glucocorticoids,how do you supplement for adrenal suppression during times of stress?
Definition
supplemental does of oral or IV glucocorticoids
Term
Cromolyn is an inhaled anti-inflammatory drug used for???
Definition
prophylaxis of asthma.
Term
How does Cromolyn reduce inflammation?
Definition
by preventing release of mediators from mast cells.
Term
When is Cromolyn given on a daily fixed schedule?
Definition
long-term prophylaxis
Term
For prophylaxis of exercise-induced bronchospasm, Cromolyn should be administered how long before anticipated exertion?
Definition
15 minutes
Term
What is the safest drug for asthma?
Definition
Cromolyn
Term
How do Beta2 agonists work?
Definition
By promoting bronchodilation by activating beta2 receptors in bronchial smooth muscle.
Term
what is the most effective drug for relieving acute bronchospasm and preventing exercise induced bronchospasm.
Definition
SABA's
Term
What are the 3 inhaled beta2 agonists?
Definition
arformoterol
formoterol
salmeterol
Term
Inhaled beta2 agonists are used for
Definition
long duration of action and are indicated for long-term use.
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