1432 results
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
TP + FN) = true positives ... disease absent Positive ... TP + FP) = true positives ... / all positives ... #calculations #diagnosis
Positive FAST in the RUQ view demonstrating echogenic clot in Morison’s pouch with adjacent anechoic free
Positive FAST in ... (*) #Clinical #Diagnosis ... Trauma #Radiology #POCUS ... HepatorenalRecess #Positive
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Can Cause False Positives ... yielding false-positive ... can cause false positives ... Amphetamine false positives ... #differential #diagnosis
Free fluid + empty uterus + positive pregnancy test = better start looking for a mass!
If
empty uterus + positive ... pregnancy test = better ... Pregnancy #Ultrasound #POCUS
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Hemothorax - Thoracic ultrasound in trauma
False positive for consolidated lung- organized clot in pleural space after
trauma False positive ... pleural space after ... hemorrhagic #clinical #pocus
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POCUS Algorithm for Chest Pain

Integrating POCUS in crashing chest pain is complex. Know the views that
POCUS Algorithm ... Integrating POCUS ... the views that matter ... #ChestPain #POCUS ... Shock #Crashing #Diagnosis
Positive FAST exam - Morrison’s Pouch

Ever so often its nice to gaze upon a crisp &
Positive FAST exam ... crisp & clean positive ... got us hooked on POCUS ... pouch #Hemorrhage #pocus ... #trauma #FAST #Positive
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Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False Positives ... Rate of False Positives ... result in false positives ... enough to prevent positive ... Testing #Laboratory #diagnosis
Jugular Venous Pressure Measurement
Examiner places the patient in a reclined position and puts the base of
in a reclined position ... Positive: JVP > ... #Diagnosis #PhysicalExam
Positive DVT study showing thrombus in the femoral vein (v), adjacent to the femoral artery (a)
Positive DVT study ... #Clinical #Diagnosis ... Radiology #Vasc #POCUS ... #DVT #Positive