Pulmonary Flashcards

1
Q

What is the GOLD mild/moderate/severe/very severe classification/GRADING of COPD based on?

A

FEV1 scoring on PFTs; Grade 1-4

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2
Q

What is the GOLD ABCD tool based on?

A

Based on symptoms (A vs B) on x-axis and based on exacerbations on y-axis (C vs D). So if mild symptoms and few exacerbations, A, but if mild symptoms but more exacerbations C. If severe symptoms but few exacerbations, than B; if severe symptoms but more exacerbations, then D.

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3
Q

What is the first step after short-acting inhalers for COPD?

A

LAMA or LAMA/LABA

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4
Q

What is the next best option after LAMA or LAMA/LABA and symptoms persist with COPD patient?

A

LAMA/LABA/ICS - Trelegy Ellipta

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5
Q

What are other options beyond inhalers for COPD?

A

rofilumast (if eos < 100), chronic azithromycin, pulmonary rehab

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6
Q

What are the 3 cardinal symptoms for COPD?

A

more dypsnea, increased sputum volume, or sputum purulence

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7
Q

For patients without PsA risk in COPD exacerbation while hospitalized, what abx should be used?

A

For most inpatients without risk factors for Pseudomonas infection, we select either a respiratory fluoroquinolone (ie, levofloxacin 500 mg orally or intravenously [IV] once daily or moxifloxacin 400 mg orally or IV once daily) or a third-generation cephalosporin (eg, ceftriaxone or cefotaxime).

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8
Q

For OUTpatients without PsA risk in COPD exacerbation, what abx should be used?

A

a macrolide (ie, azithromycin, clarithromycin) or a second- or third-generation cephalosporin (eg, cefuroxime, cefpodoxime, cefdinir).

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9
Q

Who should get abx in COPD exacerbations?

A

Moderate to severe COPD exac with increased in 3 cardinal symptoms (dyspnea, sputum purulence, sputum amount)

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10
Q

For OUTpatients with risk factors for poor outcomes (increased co-morbidities, exacerbations), what is best abx for COPD?

A

For outpatients who have risk factors for poor outcomes (but no increased risk for Pseudomonas infection), we broaden the initial regimen to include treatment for macrolide-resistant S. pneumoniae and to enhance eradication of H. influenzae. For these patients, we select either amoxicillin-clavulanate or a respiratory fluoroquinolone (ie, levofloxacin or moxifloxacin).

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11
Q

What are risk factors for PsA infection in COPD patients? (5 factors)

A

Chronic colonization or previous isolation of Pseudomonas aeruginosa from sputum (particularly in the past 12 months);
Very severe COPD (FEV1 <30% predicted)
Bronchiectasis on chest imaging;
Broad-spectrum antibiotic use within the past 3 months;
Chronic systemic glucocorticoid use

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12
Q

What are risk factors for poor outcomes in COPD exac patients? (6 factors)

A

Comorbid conditions (especially heart failure or ischemic heart disease);
Severe underlying COPD (eg, FEV1 <50%);
Frequent exacerbations of COPD (ie, ≥2 exacerbations per year);
Hospitalization for an exacerbation within the past 3 months;
Receipt of continuous supplemental oxygen
Age ≥65 years*

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13
Q

For OUTpatients with COPD exacerbation and risk factors for PsA, which abx?

A

Cipro - For outpatients who have risk factors for poor outcomes and a risk for Pseudomonas infection (table 3), we generally treat with ciprofloxacin.

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14
Q

What is the duration of abx treatment in COPD exac patients? Outpatient vs inpatient?

A

The duration of therapy for patients who are clinically improving is generally three to five days for outpatients and five to seven days for hospitalized patients.

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15
Q

When should you screen for lung cancer?

A

adults aged 50 to 80 years who have a 20 pack-year smoking history and currently smoke or have quit within the past 15 years.

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16
Q

How should you screen for lung cancer?

A

annual low dose chest CT

17
Q

When should screening for lung cancer be discontinued?

A

Screening should be discontinued once a person has not smoked for 15 years or develops a health problem that substantially limits life expectancy or the ability or willingness to have curative lung surgery.

18
Q

What are the main symptoms of COPD exacerbation that require antibiotics?

A

1) Increased sputum volume
2) Increased sputum purulence
3) Worsening dyspnea

19
Q

Do biomarkers help with antibiotics in COPD exacerbation?

A

Not really – CRP might help reduce abx use (if greater than 40 and additional piece of data in grey area), but no diff in outcomes; procal use actually trend towards more hospitalization rate

20
Q

What are the abcx for COPD exacerbation?

A

1) if no hx of abx resistance, psA - consider azithro, resp quinolone, 3rd gen cephalosporin
2) hx of psA, resistant gram neg rods - cefipime, ceftaxidime, Zosyn
Total treatment course 5-7 days

3) consider sputum culture
Can get CXR or chest CT if treatment not working

21
Q

When is NIPPV, BiPAP indicated for severe COPD?

A

RR< 25-30; acute hypercarbia, acidosis pH < 7.35

as long as good mental status, pH < 7.3

22
Q

What is the course of steroids in COPD exacerbations?

A

5 days, or individualized taper

23
Q

Can consider MgS for COPD?

A

yes, esp for COPD/asthma overlap, or fore more severe COPD

some evidence it helps

24
Q

What are the most important crtieria for treatment selection?

A

Exercise capacity/dyspnea (do family/friends have to stop on level ground to wait for you?)

Exacerbations per year

GOLD criteria

25
Q

How do you use FEV1 in Gold criteria?

A

You grade the FEV1 - so could be GOLD GROUP C, grade 2

26
Q

What is the anchor treatment for COPD?

A

Tiotropium in COPD

Key trial: POET-COPD (tio vs salmeterol)

27
Q

What is the step up therapy progression>

A

SAMA/SABA&raquo_space; LAMA&raquo_space; LAMA + LABA (+ ICS if exacerbations persist)

28
Q

Indications for supplementatal O2

A

REsting O2 < 88%

does NOT support supplemental O2 for exertional hypoxemia (LOTT study in NEJM 2016)

Can consider NIPPV if frequent exacerbations and hypercarbic resp failure

29
Q

What o2 therapy can work well in hospitalized patients in COPD besides NIPPV?

A

Hi-flo O2 - get CPAP effect, also “jet ventilation” that cycles Co2; esp post-extubation is the best evidence

only for hypoxemia, not for hypercarbia, however, - Needs NIPPV

30
Q

What are the six causes of hypoxemia?

A

Normal A-a gradient: alveolar hypoventilation (mechanical restriction/neuro dx/can’t get air in); low mixed O2 content (anemia, low cardiac output); low inspired O2 (altitude)

Increased A-a gradient (pulmonary causes): V/Q mismatch (pulm edema, PE), shunt (non-responsive to supp O2), diffusion limitation (fibrosis)

31
Q

What goes into the A-a gradient?

A

PaO2 - get it from ABG

PAO2 - you need FiO2 estimate, as well as PaCO2 from ABG and plug it into equation

32
Q

What are the levels of supplemental O2?

A

NC&raquo_space; NRB mask (short-term)&raquo_space; HFNC (10-60 LPM, up to 100% FiO2)&raquo_space; NIPPV&raquo_space; intubation