Pulm Infxs Flashcards
MC serious viral airway infxn of adults
Respiratory secretions
Freq in winter
Influenza (A & B)
Signs/Sxs (Flu)
Acute/SUDDEN onset
HA, FEVER, chills, sore throat, myalgias, arthralgias
Progressive dyspnea -> resp. failure
Dx / Tx / Prevention (Flu)
Rapid tests (nasopharyngeal) A & B
Supportive (rest, hydration, Tylenol)
Oseltamivir - within 3-4 days
Annual vaccine
Self-limited inflamm of trachea, bronchi, bronchioles 2/2 infxn
Mucus formation
90% viral
Acute Bronchitis
Etiology (Acute Bronchitis)
Rhinovirus, coronavirus
Mycoplasma pneum
Chlamydophila pneum
Bordetella pertussis
Signs/Sxs (Acute Bronchitis)
Cough +/- sputum
Concurrent URI
Fever rare (unless flu or PNA)
Dx / Tx (Acute Bronchitis)
CXR (for abnml VS / pulm findings) - NML!!!
NO ABX; no cough supp or expectorants
Reassurance, NSAIDS/APAP, decongest.
Etiology of acute exacerbation of COPD
Infxn (70-80%): H. flu, S. pneum, flu, paraflu, coronavirus, rhinovirus
Non-infxn: smoking, meds, non-compliance, HF, allergens
Signs/Sxs (AE COPD)
Chng sputum (volume, character) Chng cough (freq, severity) Inc dyspnea, RR
Dx (AE COPD)
Sputum gram stain / cx
Viral studies (NP swab)
CXR (r/o PNA if fever, hypoxia)
Tx (AE COPD)
O2
Bronchodilators (albut + ipratropium)
Systemic steroids
Abx (Uncomplicated: Doxy, Bactrim, Zpack; Complicated: Augmentin, Levoflox)
1 ID cause of death
CAP
Etiology (CAP)
Typicals: S.pneum (fever, rigors, multi-lobar consolidation), H.flu, M.cat
Atypicals: Legionella, Mycoplasma, Chlamydophila (interstitial; not consolidated)
Signs/Sxs (CAP)
Typicals -
Atypicals -
- High Fever, Rigors, Sweats, Productive Cough, Lobar consolidation
- Fever, Fatigue, Non-productive Cough, Patchy infiltrates
+/-
Dyspnea, Myalgia, HA, Anorexia, Abd cramp, Tachypnea, Tachycardia, Adventitious BS
PNA - MC High fever Single rigor Productive cough - rust colored / purulent Pleurisy Lobar consolidation - white out on CXR Gram + diplococci Lancet shaped
S.pneum
PNA
Unimmunized
Underlying obstructive lung dz (COPD)
Gram - coccobacillus
H.flu
High fever
Hyponatremia
DIARRHEA
Appearance worse than CXR
Legionella
Bullous myringitis
COLD AGGLUTININS
Young, healthy pop. (“walking PNA”)
Mycoplasma
Laryngitis
Older pts
Interstitial
Chlamydophila
Dx (CAP)
CXR +/- :
Sputum analysis
Blood cx
Antigen detection (urinary, NP swab)
Gram - diplococci
only seen in M.cat and Gonorrhea mening.
Tx (CAP)
OUT.PT: Doxy, Zpack (macrolide), Levoflox (FQ) IN.PT: cover for S.PNEUM and LEGIONELLA Ceftriaxone (gold stnd for S.pneum) \+ Zpack (gold stnd for Legionella); FQ for B-lactam allergy (? elderly)