135 results
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Medications that Can Cause ... False Positives ... medications can cause ... Protonix), may cause ... levofloxacin (Levaquin
Algorithm for the diagnosis of chronic diarrhea.
It is usually impractical to test and treat the many
Algorithm for the ... many possible causes ... In most cases, it ... reduce unnecessary testing ... Chronic #Diarrhea #Algorithm
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
is Fecal Occult Blood ... Testing (FOBT) ... evaluation • False ... - Ingested blood ... cauliflower, ETOH • False
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... in HbA1c == False ... Transfusions == False ... turnover • Acute blood ... Transfusions #False
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
Pathogens, and Testing ... and pneumocystis False ... Glucan-containing gauzes ... other fungi • False ... Galactomannan #Pathogens #Testing
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Algorithm INDICATIONS ... Peripheral blood ... for secondary causes ... eosinophilia (common causes ... Eosinophil #Disorders #Algorithm
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Causes of Hematuria ... Differential Diagnosis Algorithm ... Red blood cells ... Must exclude false ... #Causes
The following graph was prepared based on the latest information on Testing for the Diagnosis of
information on Testing ... Viruses in the blood ... chance of giving a false ... it is likely a false ... InfectiousDiseases #HIVAIDS #Testing
Acute Kidney Injury - Differential Diagnosis Framework
PRERENAL:
 - Intrarenal vasoconstriction-hemodynamically mediated
 - Systemic vasodilation
 - Volume
Glomerular (red blood ... eosinophils/white blood ... nephrotoxic drugs, treating ... underlying cause ... percutaneous drainage, or stenting
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
and Diagnosis Algorithm ... mimics, repeat testing ... Nephrology if cause ... Hematuria #Diagnosis #Algorithm ... Workup #urology #blood