Reading a Chest X-Ray
- Airway and Appliances
- Bones
- Cardiac
- Diaphragm
- Everything Else
- Masses
- Pulmonary Vasculature
- Lung Parenchyma
Wells' Criteria for Pulmonary Embolism
- Clinical Symptoms of DVT (+3)
- Pulmonary Embolism Most Likely Diagnosis (+3)
- Tachycardia (+1.5)
- Immobilization > 3 Days (+1.5)
- Previous DVT or PE (+1.5)
- Hemoptysis (+1)
- Malignancy (+1)
- > 6 = High
- 2-6 = Moderate
- < 2 = Low
Light's Criteria
- Determines Transudative vs. Exudative Source of Pleural Effusion
- Effusion/Serum Protein Ratio > 0.5
- Effusion/Serum LDH Ratio > 0.6
- Effusion LDH > Two-thirds Upper Serum LDH Range
Systemic Inflammatory Response Syndrome (SIRS) Criteria
- Temperature < 36C or > 38C
- Pulse > 90 beats per minute
- Respirations > 20/min or PCO2 < 32
- WBC < 4,000 or > 12,000 or 10% bands
- Subset of Cytokine Storm and Related to Sepsis
Winter's Formula
- Evaluates Respiratory Compensation
- Used in Metabolic Acidosis
- (HCO3 x 1.5 ) + 8 plus-minus 2 = PCO2
- Bicarbonate (HCO3) x 1.5
- + 8
- ± 2
- = Expected Value for PCO2
Duke Criteria for Infective Endocarditis
- Blood Culture Positive
- Endocardial Involvement
- Fever
- Immunologic Phenomena
- Vascular Phenomena
- Predisposition
- Microbiological Evidence
- Two Major Criteria, or
- One Major and Three Minor Criteria, or
- Five Minor Criteria
TIMI Score (Thrombolysis In Myocardial Infarction)
- Mortality Predictor
- Unstable Angina or NSTEMI
- 2 Week Risk of Death and Ischemic Events
- Age Greater or Equal to 65
- Markers Elevated
- EKG ST Changes (Greater or Equal to 0.5mm)
- Risk Factors for CAD (Coronary Artery Disease)
- Ischemia (2 Anginal Events in 24 Hours)
- Coronary Artery Disease (CAD)
- Aspirin Use in the Last 7 Days
CHA2DS2-VASc for Stroke Risk in Atrial Fibrillation
- CHF (+1)
- Hypertension (+1)
- Age 75 + (+2)
- Diabetes (+1)
- Stroke or TIA or Thromboembolism History (+2)
- Vascular Disease (+1)
- Age 65-75 Years (+1)
- Sex Female (+1)
- 0 = No Anticoagulation
- 1 = Consider Anticoagulation
- 2 = Anticoagulation
Calcium Correction for Hypoalbuminemia
- 0.8 * (Normal Albumin - Patient Albumin) + Calcium
- Multiply * 0.8
- Subtract (Normal Albumin - Patient Albumin)
- Add Calcium
Corrected Na+ for Hyperglycemia
- [(Glucose-100) * 0.016 ] + Na+
- Glucose-100
- Multiply * 0.016
- Add Na+
Quad Screen Results Interpretation
- AFP
- Estriol
- hCG
- Inhibin A
- Increased hCG + Inhibin A (HIgh)
- Down Syndrome
- Decreased hCG + Estriol + AFP (Low HEAp)
- Edward Syndrome
- Increased AFP
- Neural Tube Defects
- Abdominal Wall Defects
Salter-Harris Fracture Classification
- SMACK
- Slipped Across Physis (Type 1)
- Metaphysis and Physis (Type 2)
- Articular-Epiphyseal (Type 3)
- Complete Metaphysis and Epiphysis (Type 4)
- Krushed Physis (Type 5)