117 results
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
Diagnosis Algorithm 4 tests ... Direct palpation ... after cross-arm test ... Diagnosis #Algorithm #MSK
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
Afferent Pupillary Defect ... Optic nerve* (main cause ... neuritis due to MS ... How to test it? ... Afferent #Pupillary #Defect
Rotator Cuff Syndrome - SITS
Supraspinatus, Infraspinatus, Teres minor, and Subscapularis.
Causes: Calcific supraspinatus tendinitis 
Signs: painful abduction
Causes: Calcific ... arm, empty can test ... diagnosis #sports #MSK
Relative Afferent Pupillary Defect

This maneuver of intermittent light stimulus is called the alternating light test or
Afferent Pupillary Defect ... alternating light test ... swinging-flashlight test ... afferent pupillary defect ... regarding the cause
Positive Lachman test in ACL Injury

Here is an exam of a patient under anesthesia with an
Positive Lachman test ... That causes the ... #Lachmans #test ... cruciate #ligament #msk
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... disease who test ... then all negative tests ... then all positive tests ... Type I (α) error: reject
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
whispered voice test ... and stroke may affect ... Sensorineural problems affect ... cause unknown) ... Noise trauma ○ MS
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
Froment’s Test for ... Palsy This tests ... grip weakness caused ... Froments #Sign #Test ... #physicalexam #msk
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... Disease trigger - Direct ... vertigo Diagnostic tests ... - Ice cube test ... , TempTest test
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
by cells as a direct ... / hypoxemia -> focus ... or diagnostic tests ... B3: Hereditary Defects ... myopathies - Defects