Pulmonary Flashcards
what can dullness on percussion indicate?
effusion or pneumonia
What can hyperresonance on pulmonary exam indicate?
emphysema or pneumothorax
what does increased tactile fremitus indicate?
pneumonia or tumor
what does decreased tactile fremitus indicate?
effusion/ pneumothorax
total volume of air exhaled after maximal inspiratin
forced vital capacity (FVC)
normal amount of air with each breath
tidal volume
normal pH for ABGs
7.35-7.45
Normal HCO3 for ABG
22-26
4 main conditions that can cause respiratory acidosis
COPD, asthma, CHF pneumonia
3 main conditions that can cause respiratory alkalosis
hyperventilation, fever, anxiety
Conditions that cause metabolic acidosis (MUD piles)
methanol uremia DKA Propylene glycol isoniazid lactic acidosis ethylene glycol salicylates
2 conditions that can cause metabolic alkalosis
vomiting, NG suction
triad of asthma
airflow obstruction
bronchial hyperreactivity
inflammation
prolonged, severe asthmatic attack
that does not respond to treatment with patient at risk
for ventilatory failure
Status asthmaticus :
what will PFTs look like with asthma
Decreased FEV1, decreased FEV1/FVC, increased residual volume and TLC
Drugs that – Reverse vagally mediated bronchospasm but not allergen
or exercise induced bronchospasm
anticholinergics
Destruction of alveolar walls produces widely
dilated air spaces
emphysema
Excessive mucus secretion in the bronchial tree
causing mucus plugging and inflammation,
peribronchiolar fibrosis, narrowing and
obliteration
• Productive cough for at least 3 months during
each of two successive years
chrnoic bronhcitits
ABX that help with uncomplicated COPD exacerbations (not >65, FEV1 >50%, >3 exacerbations/year)
doxycycline, batrim, macrolide, cephalosporin
ABX good for complicated COPD
fluoroquinolones (floxacins), augmentin
abnormal dilataion of the bronchi, chronic purulent sputum, hemoptysis. Ausculatory crackles, digital clubbing
Bronchiectasis
Drugs for influenza A
rimantadine
drug for influenza A or B
zanamivir, or oseltamivir
Major cause of lower respiratory infections of
newborns and children
• Often an epidemic during winter months
• Causes bronchiolitis – inflammation of small
airways
RSV? acute bronchiolitits