23 results
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... Drug Screens (UDS ... (High Rate of False ... DrugScreening #UDS ... #Testing #Laboratory
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
that may cause false ... #DrugScreens #UDS ... FalsePositive #Testing
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculin skin testing ... (TST) False-negative ... microscopy • Testing ... recommended because false-negative ... #Diagnosis #Workup
Hypereosinophilia Different Diagnosis and Workup
Secondary causes are broad so start with a med review, the most
Diagnosis and Workup ... common cause in the US ... inpatient setting ... Outside the US, ... Different #Diagnosis #Workup
Agents Causing Potential False-Positive Results With Urine Drug Screening 

#Urine #DrugScreens #UDS #Laboratory #Toxicology #Diagnosis #FalsePositive
Causing Potential False-Positive ... #DrugScreens #UDS ... FalsePositive #Testing
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup ... Eating disorders ... • Hypoplastic MDS ... #Pancytopenia #Workup
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup ... Eating disorders ... • Hypoplastic MDS ... #Pancytopenia #Workup
Pediatric Skull Fracture with Associated Hematoma on POCUS

Working with the challenges of risk stratification, management of
Associated Hematoma on POCUS ... the low resource setting ... , where skull pocus ... Making PECARN work ... Fracture #Hematoma #POCUS
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 ... Specificity and False ... BAL samples • False ... not available in US ... Galactomannan #Fungal #Testing
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
breakthrough IFI in HM • False ... not available in US ... recipients, CGD pts • False ... Frozen ice-pops (in setting