Asthma/COPD

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1
What are H1 antihistamines used for?
allergic reactions and mast cell mediated disorders
2
Which generation of H1 antihistamines have a central and sedative effect?
first generation
3
Which generation of H1 antihistamines have less of a central effect and primarly used as anti-allergic drugs?
second generation
4
What effect does H1 antihistamines have on capillaries?
it increases dilation and permeability of capilaries causing hypotension and edema
5
What effect does H1 antihistamines have on bronchilar smooth muscle? What does it do this through? What does it cause?
increases bronchiolar smooth muscle contraction via IP3 and DAG release causing bronchoconstriction
6
What effect does H1 antihistamines have on peripheral nociceptive recptors and what does this cause?
increased activation of peripheral nociceptive receptors which causes increased pain and pruritus
7
What are the 2 other effects H1 antihistamines have on the body?
increases nasal and bronchiol mucus production
decreases conduction though the AV node
8
Most H1 and H2 antihistamines are contraindicated for?
pregnancy
children
9
When are both first and second generation H1 antihistamines contraindicated?
angle closure glaucoma and pyloric stenosis
10
What are the three first generation H1 antihistamines?
diphenhydramine
meclizine
dimenhydrate
11
What are the three second generation H1 antihistamines?
loratadine
desloratadine
cetirizine
12
Aside from closed angle glaucoma and pyloric stenosis when are second generations also contraindicated?
BPH
13
Which H1 antihistamines have the biggest antiallergic effect?
cetirizine
loratadine
fexofenadine
14
Which H1 antihistamines have the most muscarinic effect and most sedation effect?
diphenhydramine
promethazine
15
Which H1 antihistamines have the most anti-motion sickness effect?
diphenhydramine
meclizine
16
Oxymetazoline and pseudoephedrine are?
adrenergic agonist/decongestants
17
What is oxymetazoline used for?
eye redness
epistaxis
nasal congestion
rosacea-associated erythema
18
How does pseudophedrine work?
constricts blood vessels in the nose and thereby reduces edema,hyperemia and congestion
19
MOA for oxymetazoline
selective alpha 1 adrenergic agonist and alpha 2 adrenergic receptor partial agonist
20
Is psuedophedrine act more as an alpha 1 or alpha 2 agonist?
alpha 1
21
Compared to COPD asthma is
reversible
22
What exposure in childhood increases the risk of developing asthma?
second hand smoke
23
When diagnosing asthma vs COPD what rules out COPD?
complete reversibility of bronchial obstruction after bronchodilator administration
24
What is the key to long term asthma management?
continuous cycle of clinical assessment and treatment adjustment
25
Albuterol is a
SABA
26
Levalbuterol is a
SABA
27
alformoterol, formoterol, indacaterol and saleterol are
LABA
28
What medication is a SAMA?
ipratropium
29
What are the LAMA meds?
aclidinium
tiotropium
umeclidinium
30
SABA/SAMA?
albuterol/ipratropium
31
LABA/LAMA?
formoterol/aclidinium
vilanterolmeclidinium
32
Theophylline and aminophylline are?
methylxanthines
33
Which drugs are LABA/ICS?
formoterol and beclomethasone
formoterol and budesonide
formoterol and mometsone
salmeterol and fluticasone
vilanterol and fluticasone
34
LABA/LAMA/ICS?
fluticasonemedclidinium/vilanterol
35
Which medication is the PDE-4?
roflumilast
36
What is the MOA for LABA?
dilation of bronchial smooth muscles
37
What receptors do LABA work on?
beta 2 agonists
38
What are the interactions with LABA?
beta blockers
adrenergic drugs
increase digoxin serum levels
39
When are LABAs CI?
hypersensitivity
hyperthyroidism
glaucoma
diabetes
40
What are the adverse effects of LABAs?
arrhythmias
tachy
tremor
hyperglycemia
hypokalemia
41
What might young children with asthma require?
nebulizers since inhalers can be more difficult to use
42
What are the two SABA medications
inhaled: albuterol
oral: terbutaline
43
What are the three inhaled corticosteroids?
budesonide
fluticasone
mometasone
44
What is the MOA for inhaled corticosteroids?
inhibit transcription factors which decrease expression of proinflammatory genes
45
When are inhaled corticosteroids CI?
hypersensitivity
status asthmaticus
46
What is the DDI with inhaled corticosteroids?
CYP3A4 inhibitors decreases clearance of corticosteroids
47
What are the AE of inhaled corticosteroids?
increase BP, insulin resistance, gluconeogenesis and appetite
decrease fibroblast activity, bone formation and immune response
48
What do you worry about with inhale corticosteroids and what should you tell the patient to do after inhaling the medication?
canida albicans infections
must rinse and spit after admin
49
What are the oral corticosteroids?
methylprednisolone
prednisone
50
What is an ICS-LABA?
budesonide-formoterol
51
how does an ICS-LABA work?
it inhibits transcription factors which decreases expression of proinflammatory genes and bronchodilation
52
What are the leukotriene receptor antagonists?
montelukast
zafirlukast
53
What is the MOA of montelukast?
prevent leukotrienes from binding to their receptors (cysLT1) which decreass bronchoconstriction and inflammation
54
What is the MOA of zafirlukast?
competitively inhibits LTD4/LTE4 receptors
55
What is a CI with leukotriene receptor antagonists?
hypersensitivity
56
What are some AE of leukotriene receptor antagonists?
upper respiratory infections
pharyngitis
h/a
fever
cough
57
What are leukotriene receptor antagonists used for?
exercise induced asthma
aspirin induced astha
long term maintanence
58
What are long acting muscarinic antagonists?
tiotropium bromide
59
What is the MOA of LAMA?
competatively inhibits postganglionic muscarini receptors (M3) in bronchial smooth muscles causing bronchodilation
60
What is a DDI with tiotropium bromide?
anticholinergic drugs
61
What are some AE or tiotropium bromide?
dry mouth
bitter taste
alter taste
62
What is the short acting muscarinic antagonists?
Ipratropium bromide
63
What are SAMAs used for?
severe and life threatening asthma exacerbations
64
What are leukotriene pathway modifiers?
zileuton
65
What is zileuton used for?
exercised induced asthma and aspirin induced asthma
66
What is the MOA for zileuton?
inhibit 5 lipoxygenase which decreases production of leukotriens and decreases bronchoconstriction and inflammation
67
What are the adverse affects with leukotriene pathway modifiers?
hepatotoxicity
excessive fatigue
68
What are the CIs with zileuton
hypersensitivity
liver disease
69
Which drug does zileuton interact with and increases its concentration?
propranolol
70
What are the mast cell stabilizers/chromones used for?
preventative treatment prior to exercise
71
What is the MOA of chromones/mast cell stabilizers?
prevent release of inflammatory mediators from mast cells
no intrinsic anti-inflammatory, antihistamine or vasoconstrictive effects
72
What are the AE of chromones?
throat irritation
cough
sneezing
nasal congestion
73
Which methylxanthine is used out patient/long term?
theophylline
74
Which methylxanthine is used for inpatient/short term IV?
aminophylline
75
What is the MOA of methylxanthines?
inhibit PDE which increases cAMP levels causing an anti-inflammatory and mild bronchodilatory effect
76
What are the AE or methylxanthines?
n/v
h/a
insomnia
toxicity
77
what are the s/s of theophylline toxicity?
persistent vomitting
arrhythmias
intractable seizures
78
What are the DDI for methylxanthines?
adenosine receptor blocker
alcohol
nonselective bb
phenytoin
lithium
79
What causes increased clearance of theophylline?
enzyme induction
smoking
barbecued meat
80
What causes decreased clearance of theophylline?
CYP inhibition
congestive HF
liver disease
81
What is COPD?
perisistent respiratory symptoms and airflow limitation
82
What defines chronic bronchitis?
productive cough for atleast 3 months each year for 2 consecutive years
83
What defines emphysema?
permanent dilation of pulmonary air spaces distal to the terminal bronchioles which causes destruction of the alveolar walls and pulmonary capillaries required for gas exchange
84
What is mild COPD?
equal to or greater than 80% FEV1%
85
What is moderate COPD?
between 50% and 79% FEV1
86
What is severe COPD?
between 30% and 49% FEV1
87
Which type of COPD patient is usually over weight?
chronic bronchitis
88
PACO2 is increased early in which type of COPD?
chronic bronchitis
89
What is roflumilast?
PDE4 inhibitor
90
What is roflumilast used for?
improved lung function and prevent exacerbations in patients with severe cases of COPD
91
What are some AE of PDE4 inhibitors?
gi upset
weight loss
sleep disturbances
anxiety/depression
92
What is the MOA for theoplylline?
adenosine receptor blockate and nonspecific PDE inhibition
93
When is theophylline indicated for COPD?
severe and refractory COPD
94
When do you use atbx for COPD exacerbation?
2 or more are present:
increased dyspnea
increased sputum proction
increased sputum purulence
on mechanical vent
95
What are the 2 smoking cessation drugs?
bupropion SR
varenicline
96
What do you worry about with bupropion SR?
lowers seizure thresholds and can cause/worsen neuropsychiatric disorders
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