Pulm PANCE review Flashcards
Acute bronchitis= inflammation of _______
large and small airways
Acute Bronchitis: Etiology?
MOSTLY viral!! 90% viruses; atypical bacterial infection (Mycoplasma, Chlamydia Pneumoniae, B. Pertussis)
Acute Bronchitis:
S/Sx?
Cough, +/- Wheezing
Acute Bronchitis: CXR will show?
tx?
CXR: Neg for PNA
Tx: Antitussive, expectorants, albuterol, +/- abx to cover atypical infx
Acute Bronchiolitis is a major cause of ______ infections in which population?
lower respiratory infections of newborns and children -very contagious! Mostly occurs in kids <2
Acute Bronchiolitis: etiology is mostly _____
s/sx?
viral – mostly **RSV
S/Sx: Low-grade fever, cough, respiratory distress. Preceded by 1-3 days of URI sx (ie: nasal discharge)
Acute Bronchiolitis:
dx?
tx?
clinical
Tx: supportive
Humidified air, oxygen, nasal suction
+/- albuterol, fluids, ribavirin **(STEROIDS NOT BENEFICIAL)
steeple sign is assoc with:
CROUP
Croup= inflammation of the _________
upper and lower respiratory tracts, mostly subglottic region
Croup: age group?
etiology?
Typically 3 months-5 yrs old
Etiology: Viral (**Parainfluenza), adenovirus, RSV
paracrouper
Croup: S/sx
Barking cough, inspiratory stridor, hoarseness
Croup: x-ray signs?
“Steeple sign” (subglottic narrowing)
Croup: Tx?
Palliative – Rest, hydration, calm child
- Steroids – Single dose of dexamethasone (IM or PO)
- Nebulized racemic epinephrine–> Reduces stridor and work of breathing
Influenza:
Etiology?
Viruses (A, B, C)
Influenza: S/sx
HA, F/C, myalgias, coryza, +/- sore throat
Influenza: dx
Rapid antigen test with nasal swab
Influenza: tx?
Consider antivirals (oseltamivir, rimantadine, zanamivir) within 48 hours of sx onset Supportive Care
Prevent: Annual vaccination
Pertussis aka _______
whooping cough
Pertussis: etiology?
-contagious- Y or N?
Bordetella pertussis
Highly contagious airborne disease that lasts ~6 weeks before subsiding
Pertussis: S/Sx (describe the 3 stages)
Catarrhal Stage: mild cough, sneezing, runny nose (similar to any URI)–> 1-2 weeks
Paroxysmal Stage: uncontrollable coughing spells. Inspiratory whoop. May have post-tussive vomiting–>2-6 weeks
Convalescent Stage: cough subsides over weeks to months
Pertussis: dx?
Clinical diagnosis, though nasopharyngeal cultures can confirm (PCR, bacterial cx, or serology)
Pertussis: tx?
Macrolides (erythromycin, azithromycin, clarithromycin) preferred or Bactrim (alternative for those who can’t take a macrolide)
Pertussis: vaccine-prevents
A 14 yo male presents with exudative tonsillitis, fever, and adenopathy for the last 5 days. Her primary care provider placed her on amoxicillin when her rapid strep test was positive. She developed a non-pruritic rash maculopapular rash. What is the most likely cause?
Mononucleosis
CAP is a _______ infection
Parenchymal lung infection
CAP: risk factors?
Inc. Age, ETOH/Tobacco use, asthma/COPD, Immunosuppression
CAP: Etiology? typical vs atypical (list ex’s)
Bacteria > Viruses
Typicals: S. Pneumo > H. flu , M. Catarrhalis
Atypicals: Mycoplasma, Chlamydia, Legionella, Kleb, S. Aureus, Viruses
CAP: S/Sx:
cough, sputum, dyspnea, tachycardia, pleuritic CP, +/-Fever/chills
CAP: labs
Leukocytosis with possible left shift
CAP: CXR?
Lobar or segmental infiltrates
CAP: tx? outpatient?
Tx: oxygen, abx, neb tx
Outpatient: (usually 5-7 days )
<65 and otherwise healthy: amoxicillin + macrolide (azithromycin or clarithromycin) or doxycycline
If comorbidities, amoxicillin/clavulanate (Augmentin) instead of amoxicillin
If can’t take amox: cephalosporin + macrolide or doxy
Or respiratory fluoroquinolone (levofloxacin, moxifloxacin, or gemifloxacin)
CAP: in patient tx? (list ex meds)
Beta lactam (penicillins, cephalosporins, carbapenems, monobactams) + macrolide –or- monotherapy with a respiratory fluoroquinolone
CAP–> pseudomonas infxn tx?
(currently or previously) or recent hospitalization with IV abx:
Pip/taz, or cefepime, or ceftazidime, or meropenem or imipenem + ciprofloxacin or levofloxacin
CAP: tx for MRSA positive or strongly suspected?
Add vancomycin or linezolid to the above regimens
Atypical Pneumonia: Sx? Pt population?
Milder sx’s in presentation ie low grade fever, nonproductive cough, myalgia, fatigue, mild pulmonary sx’s
vs CAP
–Usually occur in young healthy adults
Atypical Pneumonia: etiology?
**Mycoplasma MC, Chlamydia, Legionella,
Atypical Pneumonia: labs
CXR?
Minimal Leukocytosis
-Not reliable with differentiating typical vs atypical findings – use clinical picture
Atypical Pneumonia: tx?
Macrolides (ie: azithromycin), fluoroquinolones (ie: Levaquin), tetracyclines (ie: doxycycline)
Hospital Acquired Pneumonia: occurs _____ hours after hospital admission
> 48
Hospital Acquired Pneumonia: etiology
Organisms that colonize ill patients, staff and equipment
S. Aureus, P. Aeruginosa, Klebsiella, Enterobacter, Acinetobacter, E. coli
Hospital Acquired PNA: Dx?
New CXR opacity
-Fever, leukocytosis, purulent sputum
Lab: Sputum culture, blood cultures
Hospital Acquired Pneumonia: tx?
culture sensitive antibiotics (depends on local resistance rates, patient risk factors for MDR pathogens)
Viral Pneumonia: etiology?
Influenza A or B, RSV, adenovirus, Herpes (newborns), CMV (immune deficient)
Viral Pneumonia: S/Sx?
Fever, rhinitis, myalgia, HA, nonproductive cough
Viral Pneumonia: Tx?
RSV: Ribavirin
HSV: acyclovir
CMV: ganciclovir
Fungal Pneumonia: increased incidence in ______ PTs
immunocomp
Fungal Pneumonia: Etiology?
-Histoplasmosis?
Histoplasmosis: “Caves, Ohio Valley, & Lower Mississippi region”, grows in soil with bird/bat droppings.
tx: Itraconazole (mild-mod) or Amphotericin B (mod-severe)
Fungal Pneumonia: Etiology?
Coccidiomycosis?
“California desert, valley fever”, SW US
Tx: Fluconazole or itraconazole
Fungal PNA:
PCP?
Pneumocystis jirovecii (PCP): ↑ HIV
Fungal Pneumonia: Blastomycosis?
Endemic around Great lakes, Ohio River Basin and Mississippi River.
Fungal PNA: Blastomycosis
- Sx?
- Tx?
Can have extrapulmonary lesions: skin (verrucous lesion with irregular borders), bone (osteomyelitis), prostatitis, CNS involvement
Tx: oral itraconazole (mild-mod), amphotericin B (mod-severe)
Fungal Pneumonia: Cryptococcus? is it fatal?
tx for mild mod?
tx for severe?
Potentially fatal, most patients immunocompromised. (OI in AIDS)
Mild-mod: fluconazole 6-12 months. Alternatives: itraconazole or voriconazole.
Severe: Amphotericin B + Oral Flucytosine
HIV Pneumonia (PJP): etiology? S/Sx?
PCP- Pneumocystis jiroveci pneumonia
S/Sx: fever, dry cough, fatigue, night sweats, hypoxia
HIV Pneumonia (PJP):
- PE:?
- Labs?
50% normal exam
-Lab: **Sputum for silver stain is gold standard, but PCR testing replacing this. LDH increased in 90%
HIV Pneumonia (PJP)
- CXR/CT classic finding?**
- Tx?
Classic finding is bilateral diffuse hilar opacification.
Tx: Bactrim (for prophylaxis and treatment) KNOW that it’s bactrim!!!!!!
Aspiration Pneumonia is caused by ______
Exogenous substances or endogenous secretions end up in the lower airways
Aspiration Pneumonia:
Requirements?
Compromise in usual defenses for lower airway
–Cough reflex, glottis closure
-Bacterial infection, obstruction (from uncleared fluid/particles), or irritant (ie: gastric fluid) in the lower airway
Aspiration Pneumonia: common bacteria?
Peptostreptococcus
Fusobacterium nucleatum
Prevotella
Bacteroides
Aspiration Pneumonia: clinical features?
Cough Fever Dyspnea Purulent sputum ***Putrid-smelling sputum considered diagnostic of anaerobic infection** Crackles, wheezes, or rhonchi
Aspiration PNA: dx?
CXR: Infiltrates
-If chemical pneumonitis
Bronchoscopy could show erythema of bronchi
Aspiration PNA: tx?
-If aspiration was observed: suction ASAP
Antibiotic Therapy:
–Parenteral: Pip/taz (Zosyn) or Ampicillin/sulbactam (Unasyn)
–PO: Augmentin –or-
Flagyl + amoxicillin (or pen G [IV])
TB= Pulmonary infx caused by_____
inhaling aerosol droplets containing Mycobacterium tuberculosis
TB: ___% form immune response to prevent progression of dz
95%
5% → Active TB within 2 years
TB: S/Sx
Cough, F/C, night sweats, anorexia, fatigue, wt. loss, hemoptysis
Primary TB tx:
New TB infection. Fever most common (and often only sx)
CXR finding: cavitary infiltrate in posterior apical segment of upper lobe, patchy or nodular infiltrates,
dx=?
TB**
TB skin test: is called?
Skin: Mantoux test (+PPD);
quantiferon gold Sputum: +/- acid-fast bacilli
TB:
**calcified nodules=
active infection**
Reactivation TB/LATENT TB is a previous focus of mycobacterial containment that was ______
seeded at the time of primary TB gets reactivated
Latent TB: ______ segments of the lung are MC involved
apical segments