PANCE - pulm review Flashcards
when is the newborn screen for CF done
24-48 hrs after 1st feed
ALL neonates w meconium ileus should be evaluated
tx for CF
clear airway secretions:
- chest physiotherapy
- HYPER-tonic saline
dornase alpha:
- mucolytic
ivacaftor:
- CFTR modulator that increases chloride transport
pancreatic enzyme replacement and fat soluble vitamins
patho of chronic bronchitis
overproduction and hypersecretion of mucus by goblet cells
definition of chronic bronchitis
chronic productive cough for at least 3 mo out of the yr for at least 2 consecutive yrs
what is the DLCL in chronic bronchitis
NORMAL DLCL
*how to differentiate from emphysema
what is the DLCL in emphysema
DECREASED DLCL
how to dx chronic bronchitis
PFT
- decreased FEV1/FVC <70%
- NORMAL DLCL
hemoglobin in chronic bronchitis
increased hemoglobin and hematocrit
-due to chronic hypoxia
2 things that improve mortality rate in COPD
oxygen therapy and smoking cessation
only use oxygen in COPD IF
O2 sat is < 88%
OR
PaO2 < 55%
COPD Group A definition
minimal symptoms and infreq exacerbations
tx: SABA
COPD Group B definition
more severe symptoms, but infreq exacerbations
tx:
SABA + LABA (salmeterol)
or
SABA + LAMA (tiotropium)
*LAMA’s are preferred
COPD Group C definition
minimal symptoms, but freq exacerbations
tx: same as group B
SABA + LAMA
or
SABA + LABA
COPD Group D definition
severe symptoms and freq exacerbations
tx:
SABA + LABA + LAMA
or
SABA + LABA + inhaled CS
acute COPD exacerbation tx
macrolides (azithro)
SABA + ipratropium as breathing tx
emphysema patho
enlarged air spaces due to alveolar septae destruction
*structural changes occur distal to terminal bronchioles
centrilobular emphysema
MC in smokes
affects UPPER lobes
panacinar emphysema
MC in alpha-1 antitrypsin def
affects LOWER lobes
*A1 sauce in the PAN
CXR findings in emphysema
- flattened diaphragm
- bullae > 1cm
- hyperinflation
- small-thin heart
ABG of PE
respiratory alkalosis
what is the westermark sign or hampton hump
triangular or rounded pleural based infiltrate adjacent to hilum
seen in PE
tx of PE
anticoagulation for 3 mo MINIMUM
heparin, followed by rivaroxaban after acute phase
CXR findings of asbestosis
- interstitial fibrosis
- pleural thickening
- calcified pleural plaques* (on diaphragm or lateral chest wall)
CXR findings of silicosis
- calcification of hilar nodes
“eggshell calcifications”
how to dx pneumoconiosis
PFT
- restrictive pattern w reduced diffusing capacity
*FEV1/FVC >80% or decreased FVC
CT findings for idiopathic pulmonary fibrosis
- diffuse patchy fibrosis w pleural based honeycombing
- ground glass opacities on fine reticular pattern
tx for idiopathic pulmonary fibrosis
antifibrotic drugs:
- pirfenidone
- nintedanib
oxygen therapy
lung transplant
patho of sarcoidosis
systemic granulomatous dz characterized by NON-caseating granulomas
lupus pernio is pathognomonic for what condition
sarcoidosis
violaceous plaques on cheeks, nose, and eyes