198 results
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... Does not change management ... to unnecessary testing ... #FOBT #Guaiac #FalsePositives ... #FalseNegatives
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
#Specificity #FalsePositive ... #FalseNegative
Causes of False-Positive and False-Negative IGRA and TST Results

#Diagnosis #TB #Tuberculosis #Tuberculin #SkinTest #TSTs #IGRA #FalseNegatives
SkinTest #TSTs #IGRA #FalseNegatives ... #FalsePositives
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
#OccultBlood #Testing ... #Laboratory #FalsePositive ... #FalseNegative
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
Toxicology #Diagnosis #FalsePositive ... #Testing
COVID-19 Diagnosis and Management Summary

 • Clinical Presentation
 • Testing
 • Imaging
 • Laboratory Findings
 •
Diagnosis and Management ... Presentation • Testing ... COVID19 #diagnosis #management ... #coronavirus #testing
Antenatal Visits - Testing and Schedule
At Every Visit:	
 • Gestational Age	
 • BP
 • Maternal Weight
Antenatal Visits - Testing ... Stillbirth GDM Management ... Glucose Tolerance Testing ... Well-being GBS Testing ... Antenatal #Visits #Testing
Acute Kidney Injury - Differential Diagnosis Framework
PRERENAL:
 - Intrarenal vasoconstriction-hemodynamically mediated
 - Systemic vasodilation
 - Volume
urinalysis, labs - Management ... renal biopsy - Management ... nephrotoxic drugs, treating ... ultrasonography - Manaqement ... percutaneous drainage, or stenting
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
#FalsePositives ... DrugScreening #UDS #Testing
Lyme Disease Pearls

Epidemiology: Ixodes scapularis carrying borrelia 
have spread and are now found in 
growing areas
days) is fine Treating ... #Diagnosis #Management ... #Pearls #Map #Testing