77 results
Pivot-Shift Test in ACL-deficient Knee

This patient has pathologic varus alignment across the knee and a chronic
Pivot-Shift Test ... dr.dold.md #Pivot #Shift ... #PivotShift #test ... Sports #Ortho #msk
Normal (Negative) Pivot-Shift Test for ACL Knee Injury

Andrew Dold, MD @dr.dold.md

#Pivot #Shift #PivotShift #test #ACL #Knee
Negative) Pivot-Shift ... dr.dold.md #Pivot #Shift ... #PivotShift #test ... cruciate #ligament #msk
5th metatarsal distal shaft fracture - Fracture detection on MSK ultrasound

The Ultrasound Site - MSK ultrasound
metatarsal distal shaft ... Fracture detection on MSK ... Ultrasound Site - MSK ... #metatarsal #shaft ... #fracture #MSK
Oxygen-Hemoglobin Dissociation Curve

Left Shift (↓ O2 unloading to tissue), Left = Lower:
 • ↓ H+ (↑
Curve Left Shift ... Temperature Right Shift ... Dissociation #Curve #pathophysiology
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
Curve Left Shift ... Hypophosphatæmia Right Shift ... Dissociation #Curve #Pathophysiology ... #Left #Right #Shift
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
Lateral pivot shift ... #Drawer #Test #msk
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Transcellular Shift ... potassium #low #pathophysiology
Conceptual Relationship between Volume Responsiveness and Volume Tolerance

Assessing for volume responsiveness would only tell you that
Causes of "Left Shift ... Tolerance #IVFluids #Shift ... #Differential #Pathophysiology
Jaundice - Pathophysiology and Causes

- Amy Chung, MD, MSc @AmyChung 

#Jaundice #Pathophysiology #Differential #Unconjugated #Causes #Diagnosis
Jaundice - Pathophysiology ... Amy Chung, MD, MSc ... #Jaundice #Pathophysiology
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
• Increased EC shift ... differential #diagnosis #pathophysiology