Accepted at 10:14 p.m. Apr, 01, 2024 by Ahmed7
Author: shmuelsash
Related Note: 1555365674043
Rationale for change

pt in QID has exudative pleural effusion which is helpful in figuring out the answer

Text
Exudative pleural effusions must meet one of Light's criteria, which are:

Pleural protein / serum protein > {{c1::0.5}}
Pleural LDH / serum LDH > {{c1::0.6}} or
Pleural LDH >{{c1::2/3}} upper limit of normal serum LDH
Extra
"Exudative has extra stuff" - LDH, protein - due to increased microvascular permeability and cell destruction

Light's Criteria
Transudative pleural effusionExudative pleural effusion
Protein
(pleural / serum)
≤ 0.5> 0.5
LDH
(pleural / serum)
≤ 0.6> 0.6
Common causes- Cirrhosis (low albumin)
- Nephrotic syndrome (low albumin)
- Congestive heart failure
- Infection (TB, fungal, empyema, parapneumonic)
- Malignancy
- Pulmonary embolism

Emma Holiday:

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Photo Credit: James Heilman, MD, CC BY 3.0, via Wikimedia Commons, modified by cropping
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Changed Tags
#AK_Step2_v12::#UWorld::16239
#AK_Original_Decks::Step_2::Cheesy_Dorian_(M3) #PANCE::PULM::pleural_diseases !AK_UpdateTags::Table::Light's_Criteria #AK_Step2_v12::#UWorld::12419 #AK_Step1_v12::#UWorld::COMLEX::26311 #AK_Step2_v12::Original_decks::Dorian::peds::uw::pulm_cc #AK_Step2_v12::#Resources_by_rotation::Surgery::emma AnkiHub_ImageReady::Text #AK_Step2_v12::#Resources_by_rotation::IM::emma #AK_Step2_v12::#SketchyIM::03_Pulmonology::04_Intrapulmonary_Shunt_Processes::05_Parapneumonic_Effusion_&_Empyema_SOAP AnkiHub_ImageReady::Extra #AK_Step2_v12::#OME::01_Medicine::02_Pulmonology::03_Pleural_Effusion #AK_Step2_v12::#Subjects::Pulmonology::05_Lungs::Pleural_Effusion::Exudative::*Basics #AK_Other::Card_Features::^One_By_One #AK_Step2_v12::Original_decks::Dorian::step2::sa1 #AK_Step1_v12::#UWorld::COMLEX::26303 #AK_Step1_v12::#AMBOSS::Respiratory #AK_Step2_v12::Original_decks::Dorian::im::emma #AK_Step2_v12::#Resources_by_rotation::Peds::uworld::pulm_critical_care::pulm_critical_care_dorian !AK_UpdateTags::^temporary::ImageFix::20::done #AK_Step1_v12::#UWorld::Step::15420 #AK_Step2_v12::#Resources_by_rotation::IM::ome::pulm::pleural_effusion #AK_Step2_v12::#SketchyIM::03_Pulmonology::04_Intrapulmonary_Shunt_Processes::04_Pleural_Effusion_Ddx #AK_Step2_v12::Original_decks::Dorian::surg::emma #AK_Step2_v12::!Shelf::Surgery::no_dupes !AK_UpdateTags::Step2decks::Cheesy-Dorian-(M3)::Internal-Medicine::2-Emma-Holiday-Review #AK_Step1_v12::#OME_banner::Clinical::02_Pulmonology::03_Pleural_Effusion #AK_Step1_v12::#UWorld::Step::15430 #AK_Step2_v12::#B&B::14_Pulmonary_Critical_Care::03_Other_Topics::03_Pleural_Disease #AK_Step2_v12::#Resources_by_rotation::tests_dorian::sa1 #AK_Step2_v12::!Shelf::#Cards_AnKing_Skipped