13 results
Agents Causing Potential False-Positive Results With Urine Drug Screening 

#Urine #DrugScreens #UDS #Laboratory #Toxicology #Diagnosis #FalsePositive
Toxicology #Diagnosis #FalsePositive ... #Testing
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
Toxicology #Diagnosis #FalsePositive ... #Testing
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... the ambulatory setting ... to unnecessary testing ... #OccultBlood #Testing ... #FOBT #Guaiac #FalsePositives
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
#FalsePositives ... DrugScreening #UDS #Testing
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
#OccultBlood #Testing ... #Laboratory #FalsePositive
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing ... Galactomannan #Fungal #Testing ... #FalsePositives
Constrictive Pericarditis on Echocardiogram
A 55-year-old female marathon runner presents to clinic w/ 6-months of worsening breathlessness
expiration not meeting ... Echocardiogram #a4c ... #pocus #clinical
Catheter in the Aorta Mimicking Dissection on Echocardiogram
An easy case for POCUS / FoCUS lovers.
easy case for POCUS ... / FoCUS lovers. ... catheter, as we were getting ... Catheter #Aorta #a4c ... clinical #cardiology #pocus
Intrapericardial Hematoma on POCUS Echocardiogram - S4C
Patient with worsening chest pain 1 week after discharge for
Intrapericardial Hematoma on POCUS ... Echocardiogram - S4C ... Underwent additional testing ... Intrapericardial #Hematoma #POCUS ... clinical #cardiology #s4c
Hemopericardium in Cardiac Arrest on POCUS Echocardiogram
GSW to left chest. Prehospital arrest. Note has hemopericardium-isoechoic to
Cardiac Arrest on POCUS ... echogenic in acute setting ... Cardiac #Arrest #POCUS ... clinical #trauma #s4c