Ild,... Flashcards
The severity of ARDS is indicated by the ratio of?
PaO2/ FiO2
PaO2 decreases n leads to an increased fraction of inspired oxygen requirement this results in decreased ratio.
Ratio<300= ARDS, <200=moderately sever
<100= severe
When do u use thrombolitics as a rx of PE?
When there is hemodynamic instability; acute RV dysfunction
PFTs in restrictive lung diseases
Decrease of everything proportionately. FEV FVC TLC residual volume will all decrease. DLCO is also decreased.
FEV1/FVC ratio will b normal or increased
- impaired gas exchange results in increased alveolar arterial gradient
A patient presenting with moderate or severe resp distress, with a likely dx of PE, what should be the next step in the mx?
Start anticoagulation with LMW or unfractionated heparin even before running dxtic tests
Most accurate test in OSA?
Polysomnography (sleep study)
The best supportive therapy for ARDS is? How should it b provided? The goal of therapy is?
Mechanical ventilation.
Low tidal volume (6ml/kg); provide adequate oxygenation( increase PEEP 15-30cm H2O May b necessary, increase FiO2 but not for prolonged periods) goal is PaO2 55-80mm Hg or SaO2 88-95%
Mx of small primary spontaneous pneumothorax in a clinically stable pt
Observation and supplemental oxygen which enhances the speed of resorption
Non allergic rhinitis Vs allergic…; Rx
Non allergic rhinitis occurs without any specific trigger, eye sxs r usu absent.
Rx is by antihistamine, ICS…
A female with a previous hx of uveitis, has mild dyspnea n presyncope episodes likely due to conduction abnormalities. She most likely has?
Sarcoidosis with cardiac involvement
A pt with significant smoking hx, cough, hemoptysis, hyponatremia(<135meq/lit), wet oral mucosa, no peripheral edema
Most likely Dx
Rx of hyponatremia
Small cell lung ca with SIADH (ectopic ADH secretion)
Correct the hyponatremia by fluid restriction(<800ml/day is the best initial mx) if severe salt tablets can b given
