Asthma Flashcards
Normal Value for FEV1
> 80%
Normal Value for FVC
Adults can empty 80% of air in 6 seconds
Normal Value for FEV1/FVC
Within 5% of predicted value (based on age, height, sex, gender)
Which spirometry test can be done at the patients home?
Peak Flow/ PEFR = Peak expiratory flow rate
Which Spirometry value determines if the disease is obstructive of restrictive
FEV1/FVC
what are obstructive diseases vs restrictive diseases of the lung
obstruct: asthma/COPD
restrict: pulmonary fibrosis
If the FEV1/FVC is low what kind of lung disease is it - obstructive or restrictive
obstructive
If the FEV1/FVC is normal what kind of lung disease is it - obstructive or restrictive
restrictive
If the FEV1/FVC is high what kind of lung disease is it - obstructive or restrictive
restrictive
Asthma or COPD - has DRY cough
asthma
Asthma or COPD - signs of atopy
asthma (atopy is basically allergies…)
Possible Asthma triggers
- Exercise
- Stress
- pets
- Emotions
- Pollution
- Insects/fecal matter
- Dust
How to Classify Asthma
Intermittent or Persistant
within Persistant - mild, moderate, severe
COPD - what 3 main factors cause the airflow limitation
- chronic bronchitis
- emphysema
- inflammation
Describe Emphysema
Abnormal enlargement of the airspaces in alveoli - leads to destruction of alveolar walls
- the structural changes/destruction of alveoli lead to REDUCED ELASTICITY
Definition of Chronic Bronchitis (number wise…)
Cough and Sputum production for at least 3 MONTHS in each of 2 CONSECUTIVE YEARS
Chronic bronchitis causes structural changes which will __________ the airways due to FIBROSIS
narrow
Inflammation in COPD - comes from irritants -
causes 2 things that will lead to making of fibroblasts
Oxidative stress (more oxidants) Protease - antiprotease imbalance (more proteases than antiproteases
Asthma or COPD - reversible
asthma
Asthma or COPD - irreversible
COPD
Hallmark symptoms of COPD
Chronic cough; dyspnea; SPUTUM PRODUCTION
Typically patient of COPD
> 40 years of age w/ common symptoms of COPD;
Hx of exposure to risk factors (smoke)
Family hx of COPD
COPD Signs
BARREL CHEST! Increase Resp. Rate Use of accessory muscles to breath Decreased breath sounds Prolonger Expiration Lips pursing on expiration
Particles that can cause COPD
CIGARETTE SMOOOOKE
Occupational dust/fumes
Indoor pollution
Spirometry is REQUIRED to diagnose _______
COPD
A post-bronchodilator FEV1/FVC has to be _______ to be diagnosed as COPD
< 0.7
Assessment Categories for COPD
- Spirometry
- Symptoms
- Exacerbation Risk
- Comorbidities
What do Inhaled beta agonists do
cause bronchodilation by relaxing bronchial smooth muscle
What are the SABAs (short acting beta 2 agonists)
Albuterol and Levalbuterol
What is the onset of action for SABAs
3 - 5 minutes
SABAs are best for _______ asthma symptoms
acute
Brand for Levalbuterol
Xopenex
Xopenex is what kind of asthma drug
SABA - short acting beta2 agonist (levoalbuterol)
What are the Long acting Beta 2 agonists (LABAs)
Salmeterol Formoterol Arformoterol Indacterol Olodaterol (there are combo products with inhaled corticosteroids and LAMAs)
What is the onset of action for LABAs (and peak effect time)
15 - 30 minutes - up to 3 hours for peak effect!!
Side effects of Beta 2 agonists for asthma
Hyped up pts = tachycardia, skeletal muscle tremors, palpitations
HYPOKALEMIA
HYPERGLYCEMIA
What is the Boxed Warning for LABAs
LABA canNOT be used as monotherpay for asthma patients!! Increased risk for asthma induced death
LABA monotherapy is OK for COPD patients tho
Brand: ?
Generic: Salmeterol
Serevent Diskus
Brand: ?
Generic: Formoterol
Foradil Aerolizer
Brand: ?
Generic: Arfomoterol
Brovana Nebulizer
Brand: ?
Generic: Indacterol
Arcapta Neohaler
Brand: ?
Generic: Olodaterol
Striverdi Respimat
Brand: Serevent Diskus
Generic: ?
Salmeterol
Brand: Foradil Aerolizer
Generic: ?
Formoterol
Brand: Brovana Neublizer
Generic: ?
Arformoterol
Brand: Arcapta Neohaler
Generic: ?
Indacterol
Brand: Striverdi Respimat
Generic: ?
Olodaterol
What are the SAMAs (short acting Antimuscarinics)
Ipratropium; Ipratropium + Albuterol
What are the LAMAs (long acting Antimuscarinics)
Tiotropium Umeclidinium Aclidinium Glycopyrrolate (there are combo products with LABAs)
Brand: ?
Generic: Tiotropium
Spiriva
Brand: ?
Generic: Umeclidinium
Incruse Elipita
Brand: ?
Generic: Aclidinium
Tudorza Pressair
Brand: ?
Generic: Glycopyrrolate
Seebri Nebulizer
Brand: Spiriva
Generic: ?
Tiotropium
Brand: Incruse Elipta
Generic: ?
Umeclidinium
Brand: Tudorza Pressair
Generic: ?
Aclidinium
Brand: Seebri Neohaler
Generic: ?
Glyccopyrrolate
remmeber this one bc seebri - like sebring and glyccopyrolate normally for GI -and mom has a sebring and GI issues…
Brand: ?
Generic: Ipratropium
Atrovent
Brand: ?
Generic: Ipratropium and Albuterol
Combivent
Brand: Atrovent
Generic: ?
Ipratropium
Brand: Combivent
Generic: ?
Ipratropium and Albuterol
If a COPD patient is Group A - how do you treat it?
bronchodilator —> try another class
If a COPD patient is Group B - how do you treat it?
Long acting bronchodilator –> LABA + LAMA
If a COPD patient is Group C - how do you treat it?
LAMA –> LABA + LAMA
can go to LAMA + ICS but try to hold off on ICS as much as possible in COPD pts
If a COPD patient is Group D - how do you treat it?
LABA + LAMA –> LABA + LAMA + ICS
Maybe Dalrisep or Macrolide Abx
An asthma patient that is intermittent will fall into Step ___ for asthma treatment
1
An asthma patient that is persistent - mild will fall into Step ___ for asthma treatment
2
An asthma patient that is persistent - moderate will fall into Step ___ for asthma treatment
3 or 4
An asthma patient that is persistent - severe will fall into Step ___ for asthma treatment
5 or 6
Asthma Treatment Guidelines:
Step 1
No control agent; Use SABA prn
Asthma Treatment Guidelines:
Step 2
Low ICS as control agent; SABA prn
Asthma Treatment Guidelines:
Step 3
Low ICS/LABA; SABA prn
Asthma Treatment Guidelines:
Step 4
Med or high ICS/LABA; SABA prn
Asthma Treatment Guidelines:
Step 5
Med or high ICS/LABA; SABA prn and maybe add on:
- tiotropium
- Anti-IgE
- Anti-IL5
Alternate Controller Options for Asthma:
When would a leukotriene modifier be utilized?
Steps 2 - 4
Alternate Controller Options for Asthma:
When would low dose oral corticosteroid be utilized?
Step 5
3 main treatment strategies for Asthma
Bronchodilation; anti-inflammation; Inhibit mast cell degranulation
Treatment strategies for Asthma:
What drugs are used for bronchodilation
- Beta2 agonists
- Anticholinergics
- Methylxanthines
Treatment strategies for Asthma:
What drugs are used for anti-inflammation
Glucocorticoids
Antileukotriene Agents
Treatment strategies for Asthma:
What drugs are used to inhibit mast cell degranulation
Cromolyn- like drugs
Xolair (Omalizumab)
what does LTRA stand for
leukotriene receptor antagonist
what does A1R stand for
adenosine receptor
what does CysLT stand for
cysteine leukotrienes
what does CystLT-1R stand for
cysteine leukotriene receptor
what does MAO stand for
monoamine oxidase
what does COMT stand for
catechol-O-methyltransferase
Sympathomimetic Amines aka
B2 adrenergic receptor agonists
Primary activity of sympathomimetic amines
relax bronchial smooth muscle
Secondary activities of sympathomimetic amines
inhibit release of mediators from mast cells, inhibit microvascular leakage, increase microcilliary transport of mucus
what pathway do B2 agonists stimulate/what is the pathway
they stimulate the GaS pathway - which increases the amount of cAMP –> more PKA –> PKA will phosphorylate MLCK to make it inactive –> causes relaxation
SABAs are resistant to (COMT/MAO/BOTH)
COMT
LABAs are resistant to (COMT/MAO/BOTH)
BOTH
Patients should not be using albuterol more than ____ times per week unless its for exercise induced asthma
2
inhalational drugs allow for more _____ action and fewer _______ effects
local; systemic
Adverse effects of Selective B2 adrenergic agonists
- tachycardia/palpitations
- skeletal muscle tremors