33 results
Pivot-Shift Test in ACL-deficient Knee

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

Andrew Dold, MD @dr.dold.md

#Pivot #Shift #PivotShift #test #ACL #Knee
Negative) Pivot-Shift ... Test for ACL Knee ... Injury Andrew ... #PivotShift #test ... #ACL #Knee #Injury
Pivot Shift test for Knee Instability

The patient lies supine while the examiner grasps the leg by
Pivot Shift test ... indicating likely ACL Injury ... #PivotShift #test ... #ACL #Knee #Injury ... PhysicalExam #Sports #Orthopedics
Causes of HyperKalemia - Differential Diagnosis
Increased extracellular K+:
 • Tissue injury
 • Hemolysis
 • Rhabdomyolysis
 •
Causes of HyperKalemia ... - Differential ... K+: • Tissue injury ... glycosides • High ... #Differential #
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
patients with hypokalemia ... creatinine) • Cell shift ... : Hypokalemic periodic ... mmol creatinine) High ... urine #potassium #differential
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... phlebotomy High ... • Trauma/Crush injury ... Intracellular Shift ... #differential #
Rhabdomyolysis - Differential Diagnosis and Management Summary

Trauma:
 • Immobilization, Crush iniury, Compartment syndrome, Electrical injury
Exertional:
 •
Rhabdomyolysis - Differential ... Shift of extracellular ... fluid into injured ... Dialysis for severe hyperkalemia ... Rhabdomyolysis #Differential
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
associated with hypokalemia ... hypomagnesemia Hypokalemia ... - Shift from extracellular ... - Insulin (high ... #Medications #differential
Differential Diagnosis for ST Segment Elevations
 - ACUTE STEMI 
 - PULMONARY EMBOLISM 
 - LBBB
Differential Diagnosis ... PERICARDITIS - HYPERKALEMIA ... TRAUMATIC BRAIN INJURY ... ANEURYSM - LVH (HIGH ... STElevation #STEMI #Differential
Reverse Pivot Shift Test on Physical Exam

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

Kendall
Reverse Pivot Shift ... Test on Physical ... Reverse #Pivot #Shift ... #Test #PhysicalExam ... clinical #msk #video #orthopedics