Why it worked
The post provides highly valuable, concise, and visually organized medical information that is directly relevant to a specific audience (medical students and residents). The use of clear criteria and scoring systems makes complex topics easily digestible and shareable, driving engagement and saves.
Summary
This is a multi-slide post presenting medical criteria relevant to internal medicine rotations. It covers criteria for pleural effusions (Lights), pulmonary embolism (Wells), systemic inflammatory response syndrome (SIRS), community-acquired pneumonia severity (CURB-65), atrial fibrillation stroke risk (CHADS-Vasc), and bleeding risk in atrial fibrillation patients (HAS-BLED).
Structure
- 1Introduction to Internal Medicine rotation criteria
- 2Lights Criteria for pleural effusions
- 3Wells Criteria for pulmonary embolism
- 4SIRS Criteria
- 5CURB-65 Criteria for pneumonia
- 6CHADS-Vasc Criteria for anticoagulation
- 7HAS-BLED Criteria for bleeding risk
On-screen text
Top 6 criteria you should know before starting your Internal Medicine rotation
LIGHTS CRITERIA
for exudative pleural effusions
1. Pleural protein/serum protein > 0.5
2. Pleural LDH/serum LDH > 0.6
3. Pleural LDH >2/3 upper limit of normal for serum LDH
If any of these are met, it is automatically exudative
WELLS CRITERIA
for pulmonary embolism
• clinical signs of DVT (+3)
•PE is most likely dx (+3)
•HR > 100bpm (+1.5)
•Immobilization >3d or surg within previous 4wks (+1.5)
•Previous DVT or PE (+1.5)
•Hemoptysis (+1)
•Malignancy (+1)
<2 = low probability
2-6 = moderate probability
>6 = high probability
SIRS CRITERIA
systemic inflammatory
response syndrome
Temperature >100.4F or <96.8F
HR >90 bpm
Resp Rate > 20 bpm
WBC count >12,000, <4,000, or >10% bands
2+ meets criteria
Current infection + SIRS =
SEPSIS
CURB-65 CRITERIA
community acquired
pneumonia severity
Confusion
Urea (BUN > 19mg/dL)
Respiratory Rate 30+ bpm
Blood Pressure (systolic <90 or diastolic <60)
Age 65+
1 point each.
0-1 = outpatient tx
2 = consider hosp admit
3-5 = hospitalization
CHADS-Vasc CRITERIA
Afib stroke risk anti-
coagulation
CHF (+1)
HTN (+1)
Age 75+ (+2)
DM (+1)
Stroke, TIA, embolism (+2)
Vascular disease (+1)
Age 65-74 (+1)
Sexual Category (female) (+1)
2+ in men or 3+ in women->
Oral anticoagulation
recommended
HAS-BLED CRITERIA
1yr risk major bleeding in
Afib patients
HTN (+1)
Abnormal renal fxn (+1)
Abnormal liver fxn (+1)
Stroke hx (+1)
Bleeding hx (+1)
Labile INR (if on warfarin)
(+1)
Elderly >65 (+1)
Drugs with bleeding
predisposition (+1)
Alcohol 8+ drinks/wk (+1)
3+ = high bleed risk