Lungs Flashcards
What is ARDS?
Noncardiogenic pulmonary edema caused by increase permeability of capillary vasculature
Sick person w/sudden SOB, widespread pulmonary edema, white out on CXR
Dx? Tx?
ARDS = PCWP norm or down, LVF normal or up = not a heart prob!
Tx: PEEP
Treatment for COPD long term
“COPD’ER”
=Corticosteroids, Oxygen, Prevention(no smoke,flu vac, pneumo vac), Dialators(SABA:Albu+Ipatro), Experimental, Rehab
Tx for COPD EXACERBATION
O2, Nebulizer(ipratropium>albuterol) + IV steroids(125mg Methyprednisone) + Abx if sputum(Amox, Bactrim, Azithromycin, Doxy)
Virchows Triad
Venous stasis, hypercoaguble state, endothelial dmg
PE causes respiratory alkalosis how?
Decrease blood to alveoli, decrease gas exchange, increase PVR(shunts blood), increase R-heart strain, increase diffusion distance due to Inflammatory shit = dec O2 in but same CO2 out =resp alk
Lite’s Criteria for Transudate pleural effusions
- LDH < 2/3 normal
- LDHeff/LDHser <0.6
- PROTEINeff/PROTEINser < 0.6
Lite’s criteria for EXUDATE pleural effusions
- LDH > 2/3 normal
- LDHeff/LDHser > 0.6
- PROTEINeff/PROTEINser > 0.6
Which type of lung cancer responds well to chemo + radiation? What paraneoplastic syndrome is associated with this?
Small/Oat cell
Para: ADH=SIADH, ACTH=cushing
*mets early!
SC lung cancer is associated with which paraneoplastic syn?
PTH = Hypercalcemia
Peripheral lung cancer stuck to pleura causing pain
Dx?
Adenocarcinoma = asbestos
Salt & pepper lung cancer found anywhere on lung.
Dx? Paraneoplastic?
Carcinoid!
Serotonin syndrome
Screening criteria for lung cancer
55-80yoa w/30pk/y his + currently or quit <15 yr ago gets annual LD CT of lungs
Whats the total FEV1 needed in order to remove a lung due to shit?
Need min of 800 FEV1 left so total min wiht both lungs must be 1600.
Ex: if FEV1 = 1200 when you remove 1 lung will have FEV1 = 600 = not enough! Cant take lung out.
How do you Dx asthma w/PFT?
Decreased FEV1/FVC or dec by 20% on methacholine challenge test