29 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
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
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Transcellular Shift ... Transcellular shifts ... nephrology #low #potassium
Lateral pivot shift test: Valgus stress on knee plus internal/external rotation of knee during knee flexion
Lateral pivot shift
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
Excretion (IV potassium ... Transcellular Shift
Hyperkalemia Treatment Options
Stabilize cardiac membrane:
 • IV Calcium (peaks 5-10 minutes)
Decrease potassium concentration:
 • IV Fluids
Shift
minutes) Decrease potassium ... • IV Fluids Shift ... potassium intracellularly ... Sodium bicarbonate Potassium ... Hyperkalemia #management #potassium
Reverse Pivot Shift Test on Physical Exam

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

Kendall
Reverse Pivot Shift ... injury #Reverse #Pivot ... #Shift #Test #PhysicalExam
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Transcellular Shift ... Algorithm #causes #potassium