81 results
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Medications that Can Cause ... False Positives ... on Drug Tests ... on drug tests? ... #tests #differential
False Positive Lung Point on POCUS
Lung-Cardiac Point and Lung-Diaphragm Point
These images highlight selected differentials to pleural
False Positive Lung ... Point on POCUS ... UAlberta_Sono #False ... #LungPoint #POCUS ... lungdiaphragam #ultrasound
RPR - False Positives
Causes of a false positive RPR that are not syphilis. (False-negative treponemal tests
RPR - False Positives ... Causes of a false ... treponemal tests ... are rare; case ... #Positives #differential
Hemothorax - Thoracic ultrasound in trauma
False positive for consolidated lung- organized clot in pleural space after
Hemothorax - Thoracic ultrasound ... in trauma False ... positive for consolidated ... Hemothorax #Thoracic #ultrasound ... hemorrhagic #clinical #pocus
Positive Lachman test in ACL Injury

Here is an exam of a patient under anesthesia with an
Positive Lachman ... test in ACL Injury ... That causes the ... #Lachmans #test ... cruciate #ligament #msk
Klebsiella Thigh Abscess on Point of Care Ultrasound (POCUS)

Redness over the thigh. POCUS shows this.
Point of Care Ultrasound ... POCUS shows this ... Interestingly this was a false ... positive. ... #MSK #Clinical
Deep Vein Thrombosis Ultrasound Pocket Card
Deep Vein Thrombosis Scanning Sites:
 • Common Femoral Vein 
 •
Vein Thrombosis Ultrasound ... Vein Thrombosis False ... Positives: • ... Hematoma - POCUS ... Thrombosis #DVT #pocus
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
with vascular causes ... positional episodes caused ... test (posterior ... test Méniére's ... Vertigo #Algorithm #differential
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Hypertension - Differential ... disease - Renal ultrasound ... Duplex Doppler ultrasound ... conditions (supine position ... #Hypertension #Differential
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... positive: TP / ... null when it’s false ... when it is indeed false ... but not on the causal