5 results
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
drugs that may cause ... false positive tests ... #Toxicology #Diagnosis ... #FalsePositive ... #Testing
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
Pathogens, and Testing ... Glucan-containing gauzes ... nutrition), Foods (tea ... #Specificity #Laboratory ... #InfectiousDiseases
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
*, hemp foods: tea ... naproxen and modern tests ... #FalsePositives ... DrugScreening #UDS #Testing ... #Laboratory #diagnosis
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Causes of Inaccurate ... Fecal Occult Blood Test ... #OccultBlood #Testing ... #Laboratory #FalsePositive ... FalseNegative #Diagnosis
The Stages of Syphilis 

Primary Syphilis 
- The chancre lesion is the hallmark of primary syphilis.
soles in 50% of cases ... with positive testing ... within the last year ... have positive serology ... Latent #Tertiary #Diagnosis