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PHRD5985 Pharmacotherapy Lecture 9 - Asthma
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what plays the biggest role in the occurrence of asthma?
genetics
3 criteria necessary to diagnose asthma
1) episodic sx of airflow obstruction
2) airflow obstruction is at least partially reversible (
12% & at least 200mL after SABA)
3) alternative diagnoses are excluded
goals of asthma therapy
1) reduce impairment (require
2 days/week of SABA)
2) reduce risk (prevent recurrence, loss of lung fcn)
4 components of asthma care
1) assessment & monitoring
2) patient education
3) control environmental factors & comorbid conditions
4) medications
4 important concepts in (1) assessment & monitoring
severity - used to initiate tx
control - used to monitor/adjust tx
impairment
risk
how often to monitor well-controlled asthma
every 1-6mos
how often to monitor asthma if step down therapy initiated
every 3 mos
Step 1 treatment
SABA prn
Step 2 preferred treatment
low-dose ICS
(+SABA prn)
Step 3 preferred treatment
low-dose ICS + LABA
OR
medium-dose ICS
(+SABA prn)
Step 4 preferred treatment
medium-dose ICS + LABA
(+SABA prn)
Step 5 preferred treatment
high-dose ICS + LABA
AND
consider omalizumab (for pts w/ allergies)
(+SABA prn)
Step 6 preferred treatment
high-dose ICD + LABA + oral CCS
AND
consider omalizumab (for pts w/ allergies)
(+SABA prn)
how long should short burst of systemic CCS be used in asthma treatment?
until pt continues 80% PEF personal best or sx resolve (usually 3-10 days)
list quick relief medication (used prn) for prompt reversal of asthma sx (3)
1) SABA
2) CCS (oral, IV)
3) anticholinergics (ONLY if SABA not working in emergency setting)
list long-term control medications (taken daily) for control of persistent asthma (6)
1) CCS (inhaled, oral)
2) cromolyn/nedocromil
3) immunomodulators
4) leukotriene modifiers
5) LABA
6) methyxanthines (theophylline)
-one's & -ide's
corticosteroids
most effective therapy for mild/moderate/severe
persistent
asthma
ICS
mainstay of therapy for any pt w/ persistent asthma
ICS
how long should it take to see improvement when treating with ICS?
1-2 weeks
daily use should not exceed ____ salmeterol
100mcg
daily use should not exceed ___ formoterol
24mcg
consider step down in asthma tx if well controlled for how long?
at least
3 months
most important thing to remember about theophylline
increased levels can cause DDIs & Cl changes =>
MUST MONITOR THEOPHYLLINE SERUM LEVELS
dosing of omalizumab
based on body weight and IgE levels (must be 30-700 IU/mL)
when are oral CCS used?
acute exacerbations or severe (Step 6) asthma
ideal candidate for theophylline
on Medicare & has nocturnal sx
what step does a pt >4yo need to be on to be referred to an asthma specialist?
Step 4
Author
daynuhmay
ID
269721
Card Set
PHRD5985 Pharmacotherapy Lecture 9 - Asthma
Description
asthma
Updated
2014-04-08T09:49:05Z
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