-
Occurs when pleural fluid formation exceeds reabsorption
pleural effusion
-
for a pleural effusion to be seen on CXR generally requires ____
300-400 cc fluid
-
protein rich pleural effusions are
exudative
-
usually/always bilateral, occasionally R>>L
effusions due to CHF
-
pus in pleural space (abscess)
empyema
-
how do you treat an empyema
chest tube drain
-
causes of hemothorax
TB, tumor, trauma, thromboembolism
-
Acute hypoxemic respiratory failure that occurs after a direct or indirect pulmonary insult that cannot be attributed to heart failure
ARDS
-
ARDS chest x-ray is characterized by
bilateral widespread pulmonary infiltrates
-
ARDS is characterized by PaO2/FIO2 <= ____
200
-
Aspiration, Lung contusion and trauma, Inhalational injury, Pneumonia, Near -drowning
primary causes of ARDS
-
Sepsis, Pancreatitis, Hypotension (shock)
secondary causes of ARDS
-
associated with a poorer outcome
secondary causes of ARDS
-
upon auscultation of lungs in ARDS you will hear
crackles
-
Indications for Mechanical Ventilation typically involves a PaO2 <__mmHg, SaO2 <90% with a elevated PCO2
60
-
Treatment of ARDS induced hypoxemia usually requires
positive pressure ventilation
-
ARDS: Mechanical Ventilation Lung Protective Strategies use
small tidal volumes
-
ARDS: Mechanical Ventilation Lung Protective Strategies consider _____ to minimize elevated lung pressures
High Frequency Ventilation
-
Normal mechanical ventilator tidal volume (___ ml/kg IBW)
15-Oct
-
Large tidal volumes cause _____ in stiff lungs
high inflation pressures
-
mechanical ventilator tidal volume in ARDS patient (___ ml/kg IBW)
6
-
Positive End Expiratory Pressure
PEEP
-
Used to keep alveoli open during the exhalation phase of respiration
PEEP
-
Maintains the Functional Residual Capacity (FRC). The FRC prevents atelectasis
PEEP
-
Too much PEEP can lead to
decreased cardiac output and high airway pressure
-
ARDS has a ___% mortality rate
30-40
-
ARDS has a 90% mortality rate in those with
sepsis
-
Respiratory dysfunction resulting in abnormal oxygenation and ventilation severe enough to threaten the function of vital organs
respiratory failure
-
Arterial blood gas values consistent with RF: PaO2 value < 60 mmHg, PaCO2 value > __ mmHg, SaO2 value < 90%
50
-
The tip of the endotracheal tube should rest at the level of the
aortic arch
-
The tip of the endotracheal tube should rest at the level of the
2 cm above the carina
-
Does not allow the patient to breathe between ventilator delivered breaths
Controlled Mechanical Ventilation
-
Ideal mode for patients that are sedated and paralyzed
Controlled Mechanical Ventilation
-
low VT and respiratory rates – allow hypercapnia – minimize high inflation pressures – oxygenation is maintained)
permissive hypercapnia
-
method employed to decrease the incidence of barotrauma
permissive hypercapnia
-
results when the lung can no longer accomplish adequate gas exchange, often fatal if left untreated
acute respiratory failure
-
respiratory compromise is evident when the PaO2 is < __mm Hg on room air
60
-
respiratory compromise is evident when the PaCO2 is > __mm Hg
45
-
patients in respiratory failure with evidence of severe distress, mental deterioration, or hemodynamic instability usually require _____
intubation and mechanical ventilation
-
the adequacy of ventilator settings needs to be determined with repeated ____
arterial blood gas levels
-
the current preferred mode of ventilation is
assisted-control ventilation
-
in ____ the clinician sets the tidal volume and the lowest allowed respiratory rate, however each spontaneous breath is supported
assisted-control ventilation
-
considered the more physiologic ventilatory mode and is associated with a decreased work of breathing
assisted-control ventilation
-
the most popular mode of ventilation in the 1980's. often associated with asynchrony of spontaneous breaths and assisted breaths
intermittent mandatory ventilation
-
A chronic inflammatory disorder of the airways in which various cells and cellular elements play a role, in particular, mast cells, eosinophils, T lymphocytes, neutrophils, and epithelial cells
Asthma
-
PEF or FEV1, PEF Variability > 80%, 20-30%; > 2/wk but < 1/day / > 2 nights/month
Mild Persistent Asthma
-
PEF or FEV1, PEF Variability > 80% < 20%;< 2 days/wk / < 2 nights/month
Mild Intermittent Asthma
-
Rules of Two: Quick-relief inhaler
> 2x/wk
-
Rules of Two: Awaken at night
> 2x/mo
-
PEF or FEV1, PEF Variability < 60% - > 30%Continual/Frequent
Severe Persistent Asthma
-
PEF or FEV1, PEF Variability > 60% - < 80%; > 30%; Daily /> 1 night/wk
Moderate Persistent Asthma
-
Rules of Two: Refill quick-relief inhaler
> 2x/yr
-
Inhaled corticosteroids (ICS)
Long-term Control Medications
-
Leukotriene modifiers
Long-term Control Medications
-
Mast cell stabilizers
Long-term Control Medications
-
Methylxanthines
Long-term Control Medications
-
Short-acting beta2 agonists
Quick-Relief Medications
-
Anticholinergics
Quick-Relief Medications
-
Systemic corticosteroids
Quick-Relief Medications
-
Potent anti-inflammatory agent
Corticosteroids
-
Primary agent in adults with persistent asthma
Corticosteroids
-
Prevent symptoms; suppress, reverse and control inflammation
Corticosteroids
-
Inhaled route used in long-term management of asthma, Similar efficacy between ICS agents when given in equipotent doses
Corticosteroids
-
Osteoporosis, Glucose intolerance, Fluid and electrolyte disturbances, Weight gain, Cushing’s syndrome, Peptic ulcers, Ocular cataracts, Behavioral disturbances
Corticosteroids: Adverse Effects - Systemic
-
Oral thrush (candidiasis), Dysphonia, Cough
Corticosteroids: Adverse Effects -Inhaled
-
Spacer, Rinse mouth, Use lowest effective dose, Monitor growth in children?
Corticosteroids: Adverse Effects - Ways to ¯ Risk
-
Only prescribe in combination with ICS in pts with moderate to severe persistent asthma
Long-acting Inhaled B2-agonists
-
Salmeterol (Serevent ®) and Formoterol (Foradil ®)
Long-acting Inhaled B2-agonists
-
Stimulate beta2 receptors in the airways smooth muscle relaxation, airway opening, decreased hyperresponsiveness
Long-acting Inhaled B2-agonists
-
ADR: tachycardia, tremor, EKG changes if OD, DO NOT USE FOR ACUTE SYMPTOMS
Long-acting Inhaled B2-agonists
-
Contains fluticasone and salmeterol
Advair®
-
Contains budesonide and formoterol
Symbicort
-
Antagonize pro-inflammatory effects of leukotrienes
Leukotriene Modifiers
-
ADR’s: rare; few cases of LFT changes
Leukotriene Modifiers
-
Onset more rapid than inhaled corticosteroids
Leukotriene Modifiers
-
Potential role as alternative to low-dose inhaled corticosteroids in mild persistent asthma
Leukotriene Modifiers
-
class: Montelukast (Singulair®)
Leukotriene Modifiers
-
Class: Zafirlukast (Accolate®)
Leukotriene Modifiers
-
class: Zileuton (Zyflo®)
Leukotriene Modifiers
-
approved for allergic rhinitis***
Singulair®
-
Mast Cell Stabilizers
Mast Cell Stabilizers
-
Inhibit inflammatory cell activation and mediator release, early and late allergen-induced bronchoconstriction
Mast Cell Stabilizers
-
Was first line anti-inflammatory agent in children due to safety profile (but now ICS)
Mast Cell Stabilizers
-
Takes 2 weeks for therapeutic response (4-6 week trial recommended)
Mast Cell Stabilizers
-
Takes 2 weeks for therapeutic response (4-6 week trial recommended)
Mast Cell Stabilizers
-
Potential beneficial effects include bronchodilation, attenuation of early and late phase response to allergen, steroid sparing effect, improved exercise tolerance
Theophylline
-
Role as an alternative to salmeterol for pts inadequately controlled on inhaled corticosteroids
Theophylline
-
Used as adjuvant to inhaled corticosteroids for management of nocturnal symptoms
Theophylline
-
ADR’s and toxicity…
Theophylline
-
Class: Albuterol (Ventolin®, Proventil®)
Short-acting Inhaled beta 2-agonist
-
Class: levalbuterol (Xopenex®)
Short-acting Inhaled beta 2-agonist
-
Class: pirbuterol (Maxair®)
Short-acting Inhaled beta 2-agonist
-
Indicated for intermittent episodes of bronchospasm
Short-acting Inhaled beta 2-agonist
-
Treatment of choice for management of EIB (albuterol 15 min before exercise)
Short-acting Inhaled beta 2-agonist
-
Used as needed for chronic asthma
Short-acting Inhaled beta 2-agonist
-
Increasing use or > 1 canister/month indicates need to intensify anti-inflammatory therapy
Short-acting Inhaled beta 2-agonist
-
Differences: Less forceful spray, Higher cost, Must be primed, Rinse actuator weekly in warm water, Equally efficacious
HFA Inhalers
-
May have added benefit with beta-agonist in severe exacerbations
Anticholinergics
-
Ipratropium (Atrovent®) Short-acting
Anticholinergics
-
Tiotropium (Spiriva®), Long-acting, No role defined for asthma
Anticholinergics
-
Same mechanism as ICS
Systemic Corticosteroids
-
PO to gain prompt control
Systemic Corticosteroids
-
class: Prednisone
Systemic Corticosteroids
-
class: prednisolone
Systemic Corticosteroids
-
class: methylprednisolone
Systemic Corticosteroids
-
Continue until patient achieves 80% of personal best or symptoms resolve (usually 3-10 days)
Systemic Corticosteroids
-
Use of this to remove the need for good hand-breath coordination
Spacers (Holding Chambers)
-
Results in decreased oropharyngeal deposition and enhanced delivery to the lungs
Spacers (Holding Chambers)
-
Recommended for all patients using ICS
Spacers (Holding Chambers)
-
Turn liquid medication into a fine mist that is easily inhaled
Nebulizers
-
Pulmicort®, Xopenex®, albuterol, ipratropium available in
nebulizer form
-
Monitoring device that measures peak expiratory flow
Peak Flow Meters
-
Fastest speed at which one can blow air out of the lungs
Peak Flow Meters
-
Should be done in the am and between noon and 2:00pm for 2-3 weeks to establish personal best, then QD
Peak Flow Meters
-
>80%: : continue meds as prescribed
green zone
-
50-80%: : double ICS and schedule short-acting beta-agonist
yellow zone
-
<50%: Go to ER; start PO steroid
red zone
-
URI, Smoke, Dust, Mold, Pollen, Exercise, Cockroaches, Cold air, Emotional extremes, Pet dander, Some foods, GERD, Allergies, Etc…
Asthma Triggers
-
a preventable and treatable disease with some significant extrapulmonary effects
COPD
-
Characterized by airflow limitation that is not fully reversible, Progressive, Abnormal inflammatory response of the lungs to noxious particles or gases
COPD
-
characterized by chronic and recurrent excess mucus secretion into the bronchiole tree
Chronic Bronchitis
-
occurs on most days during at least 3 months/year for at least 2 consecutive years
Chronic Bronchitis
-
characterized by abnormal, permanent enlargement of the airspaces distal to the terminal bronchiole
Emphysema
-
accompanied by destruction of bronchiole wall, without obvious fibrosis
Emphysema
-
COPD Staging: FEV1/FVC < 0.70, FEV1 > 80% predicted
Stage 1 or Mild
-
COPD Staging: FEV1/FVC < 0.70, 50% < FEV1 < 80% predicted
Stage 2 or Moderate
-
COPD Staging: FEV1/FVC < 0.70, 30% < FEV1 < 50% predicted
Stage 3 or Severe
-
COPD Staging: FEV1/FVC < 0.70, FEV1 < 30% predicted, or FEV1 < 50% + chronic resp failure
Stage 4 or Very Severe
-
double the chance of patients quitting smoking
Provider intervention
-
Reduce risk factors; influenza and pneumo vaccination, Short-acting bronchodilator PRN
Mild (Stage 1)
-
Scheduled long-acting bronchodilator(s), Rehab
Moderate (Stage 2)
-
Inhaled steroids (esp. if mult exac)
Severe (Stage 3)
-
Oxygen, Consider surgery
Very Severe (Stage 4)
-
beta 2-agonists - Albuterol
Short-acting bronchodilators
-
Anticholinergics - Ipratropium
Short-acting bronchodilators
-
beta 2-agonists - Salmeterol, Formoterol
Long-acting bronchodilators
-
Anticholinergics - Tiotropium
Long-acting bronchodilators
-
produce less bronchodilation in COPD patients compared to patients with asthma
beta 2-agonists
-
Bronchodilator of choice for acute exacerbations
Rapid-Acting beta 2-agonists
-
Produces greater bronchodilation than inhaled beta 2-agonists in COPD pts with fewer side effects; slower onset of action
Ipratropium (Atrovent®)
-
Use has not been associated with mortality benefit, 2 puffs QID
Ipratropium (Atrovent®)
-
Some studies have shown an improvement in FEV1 as compared to ipratropium, No acute relief of bronchospasm, One inhalation QD
Tiotropium (Spiriva®)
-
Combination of albuterol and ipratropium
Combivent®
-
Toxicities: 60% of pts experience adverse effects at serum concentrations of 20-30 mg/LN,V,D, headache, nervousness, Arrhythmia, seizures (conc. > 35 mg/L)
Theophylline
-
Shown to improve lung function and reported to improve symptoms
Theophylline
-
Role is 2nd line: use in pts inadequately controlled on optimal bronchodilatory therapy
Theophylline
-
Role is 2nd line: use in pts inadequately controlled on optimal bronchodilatory therapy
Theophylline
-
Defined as Low TLC, VC and normal FEV1/FVC.
Restrictive” Pattern on PFT’s
-
Increased permeability, Disruption of basement membrane
Alveolar Epithelial Injury.
-
Intra- alveolar, Interstitial
Fibrin Deposition.
-
leading to fibrosis.
Alveolitis
-
asbestos, silica, CWP, and avian and organic antigens
Occupational/Environmental - Exposures Interstitial Lung Disease
-
bleomycin, methotrexate, cyclophosphamide, amiodarone, and nitrofurantoin
Drug-induced Conditions - Interstitial Lung Disease
-
SLE, RA, Scleroderma, and Polymyositis.
Collagen Vascular Diseases - Interstitial Lung Disease
-
2+ hospitalizations/3+ ED visits in past year
Risk of Asthma-related Death
-
2+ canisters SABA per month
Risk of Asthma-related Death
-
Poor awareness of asthma symptoms; Lower socioeconomic status; Prior exacerbation
Risk of Asthma-related Death
-
Illicit drug use; Major psychosocial or psychiatric illness; Other co-morbidities (CV disease, other lung disease)
Risk of Asthma-related Death
-
Frequent assessment; Maintain O2 sat; Use SABA frequently/continuously; Use of corticosteroids
Asthma Exacerbations
-
should be integrated into every step of care including:
Patient education
-
-
ProAir HFA, Proventil HFA, Ventolin HFA
Albuterol
-
-
-
-
-
Combivent
Albuterol/ipratropium
-
NasalCrom
Cromolyn sodium
-
Beconase AQ, QVAR
Beclomethasone
-
Rhinocort Aqua, Pulmicort Respules
Budesonide
-
-
Flovent HFA, Veramyst
Fluticasone
-
Nasonex, Asmanex
Mometasone
-
Nasacort AQ
Triamcinolone
-
Advair Diskus
Fluticasone - Salmeterol
-
Symbicort
Budesonide - Formoterol
-
-
-
-
-
-
-
CLASS: Albuterol
β-2 agonist, short acting
-
CLASS: Levalbuterol
β-2 agonist, short acting
-
CLASS: Formoterol
β-2 agonist, long acting
-
CLASS: Salmeterol
β-2 agonist, long acting
-
CLASS: Ipratropium
Anticholinergic, short acting
-
CLASS: Tiotropium
Anticholinergic, long acting
-
CLASS: Albuterol/ipratropium
β-2 agonist-Anticholinergic
-
CLASS: Cromolyn sodium
Mast-cell stabilizer
-
CLASS: Beclomethasone
Corticosteroid
-
CLASS: Budesonide
Corticosteroid
-
CLASS: Flunisolide
Corticosteroid
-
CLASS: Fluticasone
Corticosteroid
-
CLASS: Mometasone
Corticosteroid
-
CLASS: Triamcinolone
Corticosteroid
-
CLASS: Fluticasone - Salmeterol
Long acting β-2 agonist Corticosteroid
-
CLASS: Budesonide - Formoterol
Long acting β-2 agonist Corticosteroid
-
CLASS: Theophylline
Methylxanthine
-
CLASS: Montelukast
Leukotriene modifier
-
CLASS: Zafirlukast
Leukotriene modifier
-
CLASS: Zileuton
Leukotriene modifier
-
CLASS: Isoproterenol
β-2 agonist, short acting
-
CLASS: Omalizumab
Immunomodulator
-
ORAL drugs
Theophylline, Montelukast, Zafirlukast, Zileuton
-
INJECTION drugs
Isoproterenol, Omalizumab
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