13 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Scapholunate Dissociation ... Thomas" sign to diagnosis ... scapholunate dissociation ... #Dissociation #TerryThomas ... Radiology #XRay #Diagnosis
The Shuck Test for Scapholunate Instability

The Shuck test assesses for scapholunate instability. 
With the wrist flexed,
Scapholunate Instability ... assesses for scapholunate ... instability. ... #Scapholunate # ... Instability #Hand
Watson's Test for Scapholunate Instability

1) The examiner places a thumb over the scaphoid tubercle, applying dorsal
Watson's Test for ... Scapholunate Instability ... considered a positive test ... #Scapholunate # ... Instability #wrist
Bradycardia - Differential Diagnosis Framework and Management
Narrow Complex Bradycardia:
 • Regular: Sinus Bradycardia, AFib w/ AV
- Differential Diagnosis ... Sinus Bradycardia, AFib ... Sinus Arrest, AFib ... Depending on degree of instability ... #Differential #Diagnosis
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
lead to carpal instability ... associated injuries: Scapholunate ... fracture, associated scapholunate ... Radiology #XRay #Diagnosis
Atrial Fibrillation (A-Fib) Summary

Symptoms:
• Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

Why?
Cardiac:
	• Valvular heart
control with early Afib ... (< 5% pts with afibb ... serum creatinine, test ... Hemodynamic instability ... #diagnosis #management
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
S1 => Weakened stability ... hyperextension test ... (Stork test) ... Spondylolisthesis #MSK #diagnosis
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... has a positive TST ... • The goal of diagnosing ... sputum • Improves diagnostic ... Tuberculosis #Testing #Diagnosis
Reverse Pivot Shift Test on Physical Exam

Dx: Posterolateral corner injury; but beware proximal tib/fib instability 

Kendall
Reverse Pivot Shift Test ... beware proximal tib/fib ... instability ... #Pivot #Shift #Test
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
confounding and inability ... disease who test ... then all negative tests ... then all positive tests ... #calculations #diagnosis