15 results
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
dextroamphetamine, doxepin, ephedrine ... #FalsePositives
Ephedrine - Anesthesia Pharmacology
Trade Name: Ephedrine
Brand Name(s): Akovaz
Drug Type: Sympathomimetic Catecholamine
Time of Onset: Rapid
Duration of Action:
Ephedrine - Anesthesia ... Pharmacology Trade Name: Ephedrine ... countbackwardsfrom10 #Ephedrine
Hypotension in Anesthesiology - Differential Diagnosis and Management 

Initial checklist: 
 - Verify BP (e.g. surgeon
(ephedrine / phenylephrine
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
#Specificity #FalsePositive
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
Toxicology #Diagnosis #FalsePositive
False Positive Urine Drug Screens
Amphetamines - Amantadine, brompheniramine. bupropion, chlorpromazine, desipramine, ephedrine, isometheptene, isoxsuprine, labetalol, phentermine,
, desipramine, ephedrine
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
#FOBT #Guaiac #FalsePositives
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Desipramine • DMAA • Ephedrine
High Central Neuraxial Block - Guidelines for Crises in Anaesthesia
• Can occur with deliberate or accidental
phenylephrine or ephedrine
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Fungal #Testing #FalsePositives