15 results
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
drug screens (UDSs ... potentially yielding false-positive ... Protonix), may cause false-positive ... positives: • Coca ... #medications #UDS
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... Drug Screens (UDS ... Metabolites • coca ... NSAlDs resulting in false-positive ... DrugScreening #UDS
False Positive Urine Drug Screens
Amphetamines - Amantadine, brompheniramine. bupropion, chlorpromazine, desipramine, ephedrine, isometheptene, isoxsuprine, labetalol, phentermine,
False Positive Urine ... tolmetin Cocaine - Coca ... , quetiapine #False ... #Positive #UDS
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
Sensitivity Specificity False-Positive ... False-Negative ... Contingency Table ... #Contingency #Table
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
that may cause false ... positive tests ... #DrugScreens #UDS
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
breakthrough IFI in HM • False ... positives: ... not available in US ... recipients, CGD pts • False ... Positives:
Agents Causing Potential False-Positive Results With Urine Drug Screening 

#Urine #DrugScreens #UDS #Laboratory #Toxicology #Diagnosis #FalsePositive
Causing Potential False-Positive ... #DrugScreens #UDS
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Specificity and False ... Positives 1,3- ... BAL samples • False ... not available in US ... mold-active AF • False
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... Must exclude false ... positives from ... Differential #Diagnosis #Algorithm
Additional Modalities for Workup of GI Bleed (Other than EGD + Colonoscopy)

Pill endoscopy
 • Able to
endoscopy • Able ... Enterography • Able ... Noninvasive • False ... positives can be ... gastroenterology #table