Pulm Case Wrap-Up (Jaynstein) (Midterm) Flashcards
Medications used for symptom control in a URI?
- Decongestants
- Pain and fever relievers
- Cough suppressants
- Cough expectorants
- Vitamins and supplements
Medications used for allergic rhinitis
- Antihistamines
- Intranasal corticosteroids
MOA for decongestants
- Directly stimulate alpha-adrenergic receptors of the respiratory mucosa causing vasoconstriction which reduces mucosal swelling and improves ventilation
- Directly stimulate beta-adrenergic receptors causing bronchial relaxation
S/E of decongestants
- Vasoconstriction and tachycardia can result in angina
- HTN
- Worsening of CV disease
- Increase in glycogenolysis and gluconeogenesis
- CNS stimulation
- Nervousness
- Insomnia
- Dizziness
- Drowsiness
- Urinary retention
Who should avoid taking decongestants
- Pts with HTN
- <6 YO
- During first trimester of pregnancy
Examples of decongestant medications and their duration of action
- Pseudoephedrine (Sudafed)
- Duration 4-6 hours
- 100% absorbed
- Phenylephrine (Sudafed PE)
- Duration 2-4 hours
- 30% absorbed
- Garbage medication that does not help most people
MOA cough suppressants/Antitussives
- Act at one of two sites
- Centrally on the medullary cough center
- Locally at the site of irritation
WHich cough suppressants act Centrally on the medullary cough center
- Dextromethorphan
- Opiates
- Benzonate (Tessalon)
- Does not cause drowsiness
- Many Pts report these do not help
Which cough suppressants act locally at the sight of irritation?
- Lozenges
- Viscous preparations
- Such as viscous lidocaine
- Menthol
- Camphor
What is dextromethorphan?
- A centrally acting D-isomer of codeine
- Lower addiction profile
S/E of dextromethorphan
- Serotonin syndrome
- Nausea
- Dizziness
- Drowsiness
Is dextromethorphan safe in pregnancy?
Yes
Who should avoid taking dextromethorphan?
- Pts on MAOIs
- Caution in Pts taking SSRIs but not contraindicated
Describe codeine
- Centrally acting
- High abuse potential
S/E of codeine
- CNS depression
- Respiratory depression
- Common allergen
Is codeine safe in pregnancy?
- Use with caution in pregnancy
- Category C
Benzonate (Tessalon) is?
- Centrally acting
- No addictive properties
S/E of Benzonate (Tessalon)
- Headache
- Dizziness
- Rarely causes drowsiness
Is Benzonate (Tessalon) safe in pregnancy?
Caution advised no data on safety profile
MOA of expectorants (mucolytics)
- Dissolve thick mucus
- Enhance airway clearing
- Promote cough
S/E of expectorants (mucolytics)
- Nausea
- Vomiting
- Rash
Are expectorants (mucolytics) safe in pregnancy?
Yes
Common expectorants (mucolytics)
- Mucinex
- Guaifenesin (Robitussin)
Who should avoid taking expectorants (mucolytics)?
- Children < 6 YO
- Guaifenesin may exacerbate nephrolithiasis
Robitussin DM is a mix of which two medications?
Dextromethorphan and guaifenesin
Common vitamins and supplements used in the treatment of URIs. Do they work?
- Vitamin C
- Anecdotal evidence only
- Echinacea
- EBM reveals benefit
- Appears most effective in Pts with compromised immune systems
- EBM reveals benefit
- Zinc
- EBM shows contradictory evidence
- S/E are common but not life-threatening
- Nausea
- Mouth irritation
Abx options for Mild to moderate bacterial sinusitis
- Amoxicillin/clavulanate 875mg PO BID X 7 days
- Doxycycline 100mg BID X 7 days
In cases of bacterial sinusitis where there is a concern for resistance of prior Abx failure which Abx may be used?
- Amoxicillin/clavulanate 2000mg BID X 10-14 days
- Levofloxacin 500mg QD X 5 days
- Moxifloxacin 400mg QD X 10 days
In cases of severe bacterial sinusitis where the Pt is hospitalized which Abx may be used?
- Ampicillin/Sulbactam 3gm IV QID
- Levofloxacin 500mg IV QD
- Ceftriaxone (Rocephin) 1gm IV BID
Why are macrolides (clarithromycin or azithromycin), trimethoprim-sulfamethoxazole, and second or third-generation cephalosporins NOT recommended for empiric therapy of bacterial sinusitis?
High rates of resistance of S. pneumoniae
Define well-controlled asthma
- Symptoms: < / = 2 days/week
- Nighttime awakenings: = 2x/month
- Interference with normal activity: None
- Short-acting beta2-agonist use for symptom control: = 2 days/week
- FEV1 or peak flow: > 80% predicted/personal best
- Exacerbations requiring oral systemic corticosteroids: 0-1/year
Recommended action for the treatment of well-controlled asthma?
- Maintain current step
- Regular follow-up at every 1-6 months to maintain control
- Consider step down if well controlled for at least 3 months
Define not well-controlled asthma
- Symptoms: > 2 days/week
- Nighttime awakenings: 1-3x/week
- Interference with normal activity: Some limitation
- Short-acting beta2-agonist use for symptom control: > 2 days/week
- FEV1 or peak flow: 60-80% predicted/personal best
- Exacerbations requiring oral systemic corticosteroids: >/= 2/year
Define very poorly controlled asthma
- Symptoms: Throughout the day
- Nighttime awakenings: >/= 4x/week
- Interference with normal activity: Extremely limited
- Short-acting beta2-agonist use for symptom control: Several times per day
- FEV1 or peak flow: > 60% predicted/personal best
- Exacerbations requiring oral systemic corticosteroids: >/= 2/year
Recommended action for the treatment of well-controlled asthma
- Maintain current step
- Regular follow-up every 1-6 months to maintain control
- Consider step down if well controlled for at least 3 months
Recommended action for the treatment of not well controlled asthma
- Step up 1 step
- Reevaluate in 2-6 weeks
- For side effects consider alternative treatment options
Recommended action for the treatment of very poorly controlled asthma
- Consider short course of oral systemic corticosteroids
- Step up 1-2 steps
- Reevaluate in 2 weeks
- For side effects, consider alternative treatment options
In the stepwise approach to the treatment of asthma, how many steps are there?
6
What does step 1 in the treatment of asthma consist of?
- Recommended for intermittent asthma
- SABA PRN
What does step 2 in the treatment of asthma consist of?
- Recommended starting point for persistent asthma
- SABA PRN
- Low-dose ICS
For all of these step questions I omitted the alternative treatment options
What does step 3 in the treatment of asthma consist of?
- SABA PRN
- Low-dose ICS + LABA
- OR medium-dose ICS
What does step 4 in the treatment of asthma consist of?
- SABA PRN
- Medium-dose ICS + LABA
What does step 5 in the treatment of asthma consist of?
- SABA PRN
- High-dose ICS + LABA
- And consider omalizumab for Pts with allergies
What does step 6 in the treatment of asthma consist of?
- SABA PRN
- High-dose ICS + LABA + oral corticosteroid
- Consider omalizumab for Pts with allergies
Before stepping up the treatment of asthma what should you first check?
- Adherence
- Environmental control
- Comorbid conditions
At what step in the treatment of asthma should you consult an asthma specialist?
When Pts require step 4 or higher
Typed of inhalation devices used in the treatment of asthma
- Metered-Dose Inhalers (MDI)
- Dry Powder Inhalers (DPI)
- Nebulizers
- HFA - Diskus
Classes of drugs used in the treatment of asthma
- Inhaled Beta-2-Agonists
- Short and long-actingLeuko
- Inhaled Corticosteroids (ICS)
- Leukotriene Modifiers
- Mast Cell Stabilizers
- Anticholinergics
- Anti-IgE Antibodies
- Theophylline
Describe the MOA, Onset, Peak, and Duration for inhaled Short-Acting Beta-2-agonists (SABA)
- MOA: Beta-2 agonist
- Onset: 5 minutes
- Peak: 30-60 minutes
- Duration: 4-6 hours
S/E of inhaled Short-Acting Beta-2-agonists (SABA)
- Tachycardia
- QTc prolongation
- Tremor
- Anxiety
- Hyperglycemia
- Hypokalemia
- Hypomagnesemia
The higher the does the more likely the S/E
Are Long-Acting Beta-2-agonists (LABA) recommended as monotherapy for the treatment of asthma?
- NO!!
- Black box warning
- LABA use was associated with an increased risk of asthma-related hospitalizations, intubation, and death.
- The greatest risk was in children 4-11 YO
- LABA use was associated with an increased risk of asthma-related hospitalizations, intubation, and death.
- Black box warning
If a LABA is required for the treatment of asthma what should it be used in combination with?
- An ICS
- Preferably in the same inhaler
MOA for inhaled corticosteroids (ICS)
- Inhibits inflammatory cytokines via the glucocorticoid receptor
S/E of ICS
- Oral candidiasis (Thrush)
- Dysphonia
- Reflex cough
- Reflex bronchospasm
Of all the medications used in the treatment of asthma which is the most effective for long-term control of symptoms?
ICS
Common ICS medications
- Qvar
- Pulmicort
- Flovent
Updated asthma guidelines now recommend what?
PRN ICS at initial asthma Dx
S/E of LABA+ICS combos
- Tremor
- Muscle cramps
- Tachycardia
- Other cardiac effects
These S/E are more likely if the LABA+ICS combo is used in higher-than-recommended doses
Common LABA+ICS medications
- Salmeterol/fluticasone (Advair)
- Formoterol/budesonide (Symbicort)
- Formoterol/mometasone (Dulera)
Are leukotriene modifiers ever used as first-line treatment of asthma?
No
MOA of leukotriene modifiers
- Inhibits physiologic actions of LTD4 at the CysLTI receptor without any agonist activity
- AKA block the actions of leukotrienes
- Leukotrienes cause constriction and mucus production
- AKA block the actions of leukotrienes
S/E of leukotriene modifiers
- Abdominal pain
- Nausea
- JAundice
- Itching
- Lethargy
When are leukotriene modifiers used?
- Alternative to low-dose ICS when Pts are unable or unwilling to use an ICS
- Less effective than ICS
- Used as an alternative therapy instead of LABA for Pts not well controlled on an ICS alone
- Less effective than LABA
What medication is a leukotriene modifier?
Singular
MOA of Mast Cell Stabilizers
- Alters function of delayed Cl- channels and inhibits cell activation
- Inhibition of cough
- Inhibition of early response to antigens (mast cells)
- Inhibition of late response to antigens (eosinophils)
S/E of Mast Cell Stabilizers
- Throat irritation
- Cough
- Dry mouth
- Wheezing
- Chest tightness
Common Mast Cell Stabilizer medication
Cromolyn
Failure of pharmacologic treatment in asthma can usually be attributed to?
- Lack of adherence to prescribed medications
- Most common cause of treatment failure
- Continued exposure to tobacco smoke and other airborne pollutants, allergens, or irritants
- Smoking and exposure to second-hand smoke can cause airway hyperresponsiveness and decrease the effectiveness of ICS
- Some Pts with asthma may be concurrently be taking aspirin or other NSAIDs, or other medications that can cause asthma symptoms
- Samter’s triad
- Oral nonselective beta-adrenergic blockers, such as propranolol, timolol, etc, can precipitate bronchospasm in Pts with asthma and decrease the broncho-dilating effect of Beta-2agonists
Oh shit, your Pt with asthma also suffers from migraines, what are some migraine prophylaxis options that will not interfere with their asthma medications?
- Non-dihydropyridine CCB
- Verapamil
- Beta-1-selective Beta-blocker
- Metoprolol
- Atenolol
- Anticonvulsant
- Valproic acid
- Topiramate
- If Pt is on an OCP anticonvulsants can decrease their efficacy
- TCA
- Amitriptyline
- Nortriptyline
How can Pts who use ICS reduce the risk of developing thrush?
- Rinse mouth after using ICS
- Use a spacer
Will thrush related to ICS use go away without treatment?
No, it must be treated
Recommended treatment for oral thrush associated with ICS use
Nystatin 5 mL whish and swallow QID X 7-14 days
Define COPD
A preventable and treatable disease state characterized by airflow obstruction that is not fully reversible
Primary cause of COPD
Cigarette smoking
The airflow obstruction in COPD is defined as?
- FEV1 < 80% predicted and FEV1/FVC < 0.7
Using the GOLD criteria define mild COPD
- In Pts with FEV1/FVC < 0.70
- GOLD1
- FEV1 > 80% predicted
Using the GOLD criteria define moderate COPD
- In Pts with FEV1/FVC < 0.70
- GOLD2
- 50% < FEV1 < 80% predicted
Using the GOLD criteria define severe COPD
- In Pts with FEV1/FVC < 0.70
- GOLD3
- 30% < FEV1 < 50% predicted
Using the GOLD criteria define very severe COPD
- In Pts with FEV1/FVC < 0.70
- GOLD4
- FEV1 < 30% predicted
There are 4 stages of COPD for all stages what is the recommended treatment?
- Avoidance of risk factors
- Influenza/Pneumococcal vaccination
There are 4 stages of COPD for stage I what are the characteristics and the recommended treatment?
- Characteristics
- FEV1/FVC < 70%
- FEV1 > 80% predicted
- With or without symptoms
- Recommended treatment
- Short-acting bronchodilator PRN
There are 4 stages of COPD for stage II what are the characteristics and the recommended treatment?
- Characteristics
- FEV1/FVC < 70%
- 50% < FEV1 < 80% predicted
- DOE
- With or without cough and sputum production
- Recommended treatment
- Short-acting bronchodilator PRN
- Regular treatment with one or more long-acting bronchodilators
- Rehabilitation
There are 4 stages of COPD for stage III what are the characteristics and the recommended treatment?
- Characteristics
- FEV1/FVC < 70%
- 30% < FEV1 < 50% predicted
- Increased dyspnea
- Reduced exercise capacity
- Fatigue
- Repeated exacerbations
- Recommended treatment
- Short-acting bronchodilator PRN
- Regular treatment with one or more long-acting bronchodilators
- Rehabilitation
- Inhaled glucocorticoids if significant symptoms, lung function response, or if repeated exacerbations
There are 4 stages of COPD for stage IV what are the characteristics and the recommended treatment?
- Characteristics
- FEV1/FVC < 70%
- FEV1 < 30% predicted OR < 50% plus respiratory failure
- Recommended treatment
- Short-acting bronchodilator PRN
- Regular treatment with one or more long-acting bronchodilators
- Rehabilitation
- Inhaled glucocorticoids if significant symptoms, lung function response, or if repeated exacerbations
- Treatment of complications
- Long-term O2 therapy if chronic failure
- Consider surgical treatment
Using the ABCD classification of COPD what does A indicate and what are the recommended treatments?
- A
- Low risk
- Less symptoms
- Treatment
- SABA or SAMA
For these I’m omitting the alternative treatments, they can be found in the power point.
Using the ABCD classification of COPD what does B indicate and what are the recommended treatments?
- B
- Low risk
- More symptoms
- Treatment
- LABA or LAMA
Using the ABCD classification of COPD what does C indicate and what are the recommended treatments?
- C
- High risk
- Less symptoms
- Treatment
- ICS + LABA or LAMA
Using the ABCD classification of COPD what does D indicate and what are the recommended treatments?
- D
- High risk
- More symptoms
- Treatment
- ICS + LABA plus/or LAMA
Goals of treatment for COPD
- Reduce symptoms
- Control dyspnea
- Improve exercise tolerance and quality of life
- Decrease complications of the disease such as acute exacerbations
Which COPD Pts get a SABA?
- All of them
A SABA can be combined with what to have an additive effect?
- Ipratropium
- The combination of ipratropium/albuterol has been found to be more effective than either drug alone and is available in a single inhaler; Combivent
For Pts with evidence of significant airflow obstruction and chronic symptoms of COPD, regular treatment with what is recommended?
- A long-acting inhaled bronchodilator
- Either
- Long-acting Beta-2-agonist (LABA)
- Or a Long-acting muscarinic antagonist (LAMA)
Commonly used LABAs
- Formoterol (Foradil)
- Salmeterol (Serevent)
Commonly used LAMA
- Tiotropium (Spiriva)
- Jaynsein’s reccomendation
Which COPD Pts are ICS recommended for?
- Pts with severe COPD (FEV < 50%) who experience frequent exacerbations while receiving one or more long-acting bronchodilators
- Addition of an ICS is recommended to reduce the number of exacerbations
Name some LABA/ICS combo medications
- Formoterol/Budesonide (Symbicort)
- Salmeterol/Fluticasone (Advair)
- Vilanterol/Fluticasone (Breo Ellipta)
- Memetasone/Formoterol (Dulera)
Name some LAMA/ICS combo medications
- Vilanterol/Umeclidinium (Anoro Ellipta)
- Olodaterol/Tiotropium (Stiolto Respimat)
Is long-term treatment with oral corticosteroids recommended for COPD Pts?
- No the treatment can lead to:
- Myopathy
- Glucose intolerance
- Weight gain
- Immunosuppression
When should oral corticosteroids be used in COPD Pts?
During severe exacerbations
For COPD Pts with severe hypoxemia what medication has been shown to both increase survival and quality of life?
Long-term supplemental O2
In COPD Pts with mild or moderate hypoxemia what might O2 therapy help with?
- Increase exercise capacity
- Effects of long-term benefits in this population are unclear
Which COPD Pts should you consider home O2 therapy for?
- Resting O2 < 88% on RA
- Evidence of pulmonary HTN, CHF or polycythemia
What is the hardest thing you will ever do has a PA?
Get a Pt approved for home O2
The benefits of pulmonary rehab for COPD Pts are well established, what are the benefits?
- Reduce dyspnea
- Improve functional capacity
- Improve the quality of life
- Reduce number of hospitalizations
- An ABG comes back with the following:
- pH: 7.38
- PaCO2: 29
- HCO3: 15 mEq/L
This indicates?
Something probably, but for the exam it’s unimportant. Won’t be any ABG questions.
Which organisms make up 60% of community acquired pneumonia (CAP)?
Streptococcus pneumoniae and Mycoplasma pneumoniae
Which Abx are no longer considered first line in the treatment of S. pneumoniae PNA due to high levels of resistance?
- Penicillins
- Pen VK
- Amox
- Augmentin
- First and second-generation cephalosporins
Which ABx are good choices for the treatment of CAP caused by S. pneumoniae
- Third-generation cephalosporins
- Ceftriaxone
- Ceftazidime
- Macrolides
- Azithromycin
- Clarithromycin
- Fluoroquinolones
- Levofloxacin
- Moxifloxacin
- Tetracycline
- Doxycycline
- Jaynstein’s go-to for CAP monotherapy
- Doxycycline
ABx options for treatment of CAP caused by Mycoplasma
- Tetracyclines
- Doxycycline
- Macrolides
- Erythromycin
- Fluoroquinolones
- Levofloxacin
ABx options for CAP caused by H. flu
- Macrolides
- Clarithromycin
- Azithromycin
- Fluoroquinolones
- Levofloxacin
- Moxifloxacin
ABx options for CAP caused by Chlamydohilia pneumonia
- Macrolides
- Clarithromycin
- Azithromycin
- Fluoroquinolones
- Levofloxacin
ABx options for CAP caused by Legionella
- Macrolides
- Clarithromycin
- Azithromycin
- Fluoroquinolones
- Levofloxacin
- Tetracyclines
- Doxycycline
When determining whether to give an Abx IV or PO what should you consider?
- Bioavailability of the drug
- Fluoroquinolones have good bioavailability so there is no difference in their efficacy between IV and PO
- ICU Pts are usually on antimicrobials that only come in IV form
When should you switch a Pt from IV Abx to PO?
As soon as it is safe to do so
Which criteria determine whether a Pt is stable enough to switch from IV ABx to PO?
- Normal VS for 24 hours
- Afebrile
- RR < / = 24 breaths/minute
- HR < / = 100 bpm
- Systolic BP >/= 90 mmHg
- O2 sat > 90% on RA
- No respiratory distress
Early transition from IV Abx to PO decreases what?
- Length of hospital stay
- Cost
40-50% of Pts admitted for IV ABx can be switched to PO within what time frame?
2-3 days
Just because a Pt is hospitalized for CAP does not mean they need IV ABx, what other reasons might they be hospitalized for?
- Hypoxia/respiratory distress
- Monitoring for improvment
- Moderate to high risk of decompensating
What are the criteria of the CURB-65 score?
- Each is worth 1 point (max 5 points)
- Confusion
- Urea (>7 mmol/L)
- Respiratory rate (>/=30/min)
- BP (SBP <90 mmHg or DBP <60 mmHg)
- Age (=65 years)
Which CURB-65 scores indicate outpatient treatment of CAP may be appropriate?
- 0-1
- Score of 0 indicates a 0.7% mortality rate
- Score of 1 indicates a 2.1% mortality rate
A CURB-65 score of 2 indicates?
- A short hospital stay or supervised outpatient treatment
- Score of 2 indicates a 9.2% mortality rate
Which CURB-65 scores indicate the need for hospital admission and possible admission to the ICU?
- CURB-65 scores of 3-5
- Score of 3 indicates a 14.5% mortality
- Score of 4 indicates a 40% mortality
- Score of 5 indicates a 57% mortality