21 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
Normal (Negative) Pivot-Shift Test for ACL Knee Injury

Andrew Dold, MD @dr.dold.md

#Pivot #Shift #PivotShift #test #ACL #Knee
Normal (Negative) Pivot-Shift ... dr.dold.md #Pivot ... #Shift #PivotShift
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
(ACL), Lateral pivot ... shift, Apley compression ... #Diagnosis #Sports
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
- Differential Diagnosis ... Transcellular Shift ... Transcellular shifts ... #Differential #Diagnosis ... nephrology #low #potassium
Pivot Shift test for Knee Instability

The patient lies supine while the examiner grasps the leg by
Pivot Shift test ... PT_yuu_mizu628 #Pivot ... #Shift #PivotShift
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
- Differential Diagnosis ... Excretion (IV potassium ... Transcellular Shift ... #Differential #Diagnosis
Lateral pivot shift test: Valgus stress on knee plus internal/external rotation of knee during knee flexion
Lateral pivot shift ... knee flexion #Diagnosis
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
- Differential Diagnosis ... Transcellular Shift ... #Differential #Diagnosis ... Algorithm #causes #potassium
Causes of Hyperkalemia

Hyperkalemia is caused by excess potassium intake, impaired potassium excretion, or transcellular shifts. The
caused by excess potassium ... intake, impaired potassium ... transcellular shifts ... adapt to excess potassium ... dysfunction is common #Diagnosis
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
• Increased EC shift ... #differential #diagnosis ... #pharmacology #potassium