31 results
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
the screening test ... implies being able ... the screening test ... #Calculation #Table ... #PPV #NPV #Formulas
Lelli's Test (Lever Sign) for ACL Injury

A fist is placed under the proximal 3rd of the
Lelli's Test (Lever ... rises from the table ... rise from the table ... #Lellis #Test #Lever ... physicalexam #sports #msk
Thomas' Test for Hip Flexure Contracture

Thomas' Test assesses for hip flexure contracture.
One hip is maximally flexed
Thomas' Test for ... Contracture Thomas' Test ... rises off the table ... , the test is positive ... video #sports #msk
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Renal ultrasound, Tests ... standardized conditions (correction ... sodium loading test ... saline infusion test ... Screening #Workup #table
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms ... interval ≥ 120 ms ... rate • Bazett formula ... are multiple QTc correction ... formulas • Prolonged
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
systematic error Correlation ... perfect positive correlation ... perfect negative correlation ... , 0 = no correlation ... Biostatistics #formulas
Intraoperative Thompson Test - Assessing the Achilles’ tendon following a surgical repair for rupture. The calf
Intraoperative Thompson Test ... To perform the test ... the examination table ... patients may be able ... physicalexam #surgery #msk
ED Treatment of 
Abnormal Uterine Bleeding 

Hemodynamically unstable 
Resuscitation 
 • ABCs! 
 • Fluids +
transfusion • Correction ... coagulopathy Pregnancy test ... Hemodynamically stable
Ulnar Fovea Sign Test for Fovea Disruption

Useful for patients with pain along the ulnar aspect of
Ulnar Fovea Sign Test ... the elbow on a table ... The test is positive ... #Fovea #Sign #Test ... #orthopedics #msk
Positive Varus Stress Test in LCL Injury

Interesting knee injury in a young basketball player who landed
Positive Varus Stress Test ... injury, we are able ... collateral #ligament #msk