Exam 1: Asthma and COPD thangs Flashcards
(127 cards)
What are some asthma triggers
-viral respiratory infections
-allergens (pollen, fungal)
-food allergy
-air pollution
-seasonal changes (return to school)
-por adherence to ICS
what are factors that increase asthma-related death?
-hx of asthma requiring intubation and mechanical ventilation
-hospitalization or ED visit within 1 yr
-currently using (or recently using) oral corticosteroids
-not currently using inhaled corticosteroids
-over-use of SABAS: > 1 albuterol canister/month
-Psychiatric or psychosocial problems, food allergies
-poor adherence with ICS asthma medications or written asthma action plan
-comorbidities: pneumonia, diabetes, arrhythmias, after hospitalization for an asthma exacerbation
How to treat an acute asthma exacerbation?
1) SABA (Preferred: albuterol)
1) systemic corticosteroids (Prednisone)
1) oxygen: titrate O2 saturation of 94-98%
optional
-Ipratropium
-Magnesium
-ICS
SABA use in acute asthma tx
-MDI: 4-8 puffs every 30 mins up to 4 hours, then every 1-4 hours as needed
-Neb: 2.5-5mg every 20 mins x 3 doses, then every 1-4 hours as needed (titrate to response0
-SABA > IPRATROPIUM
-inhaled + spacer = neb
-dose dependent
-durations: 2-4 hours
Systemic Corticosteroid use in acute asthma tx
-Dose: 50 mg po daily for 5-7 days (prednisone)
-PO preferred unless vomiting, intubated, somnolence
-onset: 4 hours until improvement
Ipratropium use in acute asthma tx
optional
MDI: 8 puffs every 20 mins as needed up to 3 hours
Neb: 500 mcg every 30 mins x 3 doses, and then every 2-4 hours as needed
ED ONLY! –> in combo with a SABA showed fewer hospitalizations and improvement in PEF/FEV1, dose dependent
Magnesium in acute ashtma tx
-2mg IV x 1 (IF NOTHING ELSE IS WORKING)
-ED ONLY! failure to respond to initial treatment or have persistent hypoxemia, FEV1 < 25-30%
ICS use in acute asthma tx
-high dose ICS within 1 hr
-in the ED only! can reduce the need for admission if systemic steroids are not given
-if admitted, should be started on or continued
should be given on discharge home
Treatment of acute exacerbation on discharge
1) inhaled ICS: if not on, ADD ICD. If on, increase (step-up) the dose for 2-4 weeks
2) oral corticosteroids (OCS): 5-7 day total dose; re-evaluation should
what medications can you NOT use in asthma tx?
-aminophyline/theophyline
-leukotriene receptor antagonists
-hydration
-high-dose mucolytics
-antihistamines
-chest physiotherapy
-sedation
-antibiotics
medication efficacy/toxicity in acute asthma
-steroids: WBC, glucose (daily, could become hyperglycemic)–> consider short acting insulin if needed
-bronchodilators: HR, frequency of use (want them to get to PRN dosing)
Predisposing factors & allergens of allergic rhinitis
PFs: fam hx of allergic rhinitis, atopic dermatitis/eczema or asthma, allergen exposure, heavy exposure to secondhand smoke
Allergens: pollen grains, mold spores, dust mite fecal proteins, animal dander, cockroaches
Clinical presentations of allergic rhinitis
-clear rhinorrhea
-sneezing
-nasal congestion
-postnasal drip
-itchy eyes, ears, nose, or palate
-malise/fatigue
-pale or bluish discoloration and swelling of nasal mucosa
-conjunctivitis/watery ocular discharge
Mild Intermittent classification of AR
< 4 days per week OR < 4 weeks per year with NO interference with QOL
Moderate to severe intermittent classification of AR
< 4 days per week OR < 4 weeks per year with interference with QOL
Mild persistent classification of AR
> 4 days per week AND > 4 weeks per year with NO interference with QOL
Moderate to severe persistent classification of AR
> 4 days per week AND > 4 weeks per year with interference with QOL
Nonpharmacologic options for AR treatment
-nasal saline irrigations: improves nasal symptoms and reduce need for medications, well-tolerated and safe
-adhesive nasal strips: facilitate breathing and reduce nasal obstruction
Intranasal Corticosteroids for tx of AR (facts)
-reduce inflammation
-treat: congestion, rhinorrhea, sneezing, nasal itching, ocular symptoms
-onset ranges from 3-5 hrs to 36 hrs after first dose, assume efficacy should be reached after 1 week of continuous use
SEs: headache, dryness, burning, stinging, blood-tinged secretions and epistaxis *avoid use in those with nasal septum ulcers, recent nasal surgery or trauma
Intranasal Corticosteroids for tx of AR (drugs)
beclomethasone
budesonide
flunisolide
fluticasone propionate
fluticasone furoate
mometasone
triamcinolone
ciclesonide
Oral Antihistamine use for TX of AR (facts)
-most effective when administered prior to allergen exposure
1st gen: lipophilic, cross BBB, anticholinergic effects and excessive sedation
2nd gen: highly selective for H1 receptor, limited penetrations into CNS
–> treats: rhinorrhea, sneezing, nasal itching, ocular symptoms
SEs: sedation, anticholinergic side effects, changes in appetite and GI discomfort
–> caution with: elderly pts, use with other CNS depressants, urinary retentions issues, slowed GI motility, narrow angle glaucoma
Oral antihistamines used in tx of AR (drugs)
1st gen: chlorpheniramine, diphenhydramine
2nd gen: cetirizine, levocetirizine, loratadine, desloratadine, fexofenadine
Intranasal antihistamines used in tx of AR
-rapid onset 15-30 mins
–> treats: congestion, rhinorrhea, sneezing, nasal itching
SEs: bitter taste, epistaxis, headache, somnolence and nasal burning (taste and BID dosing may limit adherence)
Drugs: azelastine, olopatadine, azelastine/fluticasone
Ophthalmic antihistamines used in tx of AR
-relieves allergic conjunctivitis (ocular symptoms)
-appropriate as mono therapy or in combination with oral agents
SEs: headache, blurred vision, burning/stinging of the eyes, discomfort, bitter taste, pharyngitis
Drugs: ketotifen, azelastine, olopatadine, alcaftdadine, emedastine, epinastine