148 results
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Medications that Can Cause ... Drug Tests Urine ... medications can cause ... Desipramine • DMAA • Ephedrine ... Protonix), may cause
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... Positives on Urine ... (High Rate of False ... dextroamphetamine, doxepin, ephedrine ... FalsePositives #Urine
False Positive Urine Drug Screens
Amphetamines - Amantadine, brompheniramine. bupropion, chlorpromazine, desipramine, ephedrine, isometheptene, isoxsuprine, labetalol, phentermine,
False Positive Urine ... , desipramine, ephedrine ... , quetiapine #False ... Positive #UDS #Urine
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
Urine Drug Screens ... drugs that may cause ... false positive ... Diphenhydramine #Urine
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... in HbA1c == False ... Transfusions == False ... Transfusions #False
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria: Red/Dark urine ... 1ml blood/liter urine ... more RBC/HPF spun urine ... examination of urine ... RBC - Brown urine
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... Proteinuria (Negative urine ... Proteinuria (Positive urine ... albuminuria) - Active urine ... Diagnosis #Algorithm #Causes
Causes Abnormal Urine Color - Differential Diagnosis
Turbid White Urine (Albinuria):
 • Chyluria, Filariasis, Schistosomiasis, Malignancy, Phosphaturia,
Causes Abnormal ... listed under green urine ... * Green Urine: ... : • Purple Urine ... Syndrome - UTI caused
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Causes of Hematuria ... blood cells on urine ... Must exclude false ... RBCs and/or RBC casts ... Diagnosis #Algorithm #Causes
Causes of Abnormal Urine Colors - Differential Diagnosis
Blue-Green - Yellow - Orange - Pink - Red
Causes of Abnormal ... Urine Colors - ... White - Purple #Urine ... differential #diagnosis #causes