337 results
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing Sensitivity ... invasive dz • Sensitivity ... Fungal #Testing #FalsePositives ... #Laboratory #sensitivity
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
Sensitivity Specificity ... confusion matrix Sensitivity ... #Sensitivity #Specificity ... #FalsePositive
Urinalysis Testing - UTI Sensitivity and Specificity
 - Leukocyte esterase 
 - Nitrite 
 - WBCs
Testing - UTI Sensitivity ... Testing #Accuracy #Sensitivity ... #Specificity #Laboratory
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
DrugScreens #UDS #Laboratory ... Toxicology #Diagnosis #FalsePositive
Iron Deficiency Anemia vs Anemia of Chronic Disease - Laboratory Testing

SUMMARY:
 - RDW, FEP, serum iron,
Chronic Disease - Laboratory ... normal but poor sensitivity ... Chronic #Disease #Laboratory
Tuberculous Pleural Effusions - Tests and Biomarkers
Age + fever + red blood cells + ADA -
ADA - Very high sensitivity ... - Increase in sensitivity ... % + ADA - High sensitivity ... neutrophil ratio - High sensitivity ... #Tuberculosis #Laboratory
Agents Causing Potential False-Positive Results With Urine Drug Screening 

#Urine #DrugScreens #UDS #Laboratory #Toxicology #Diagnosis #FalsePositive
DrugScreens #UDS #Laboratory ... Toxicology #Diagnosis #FalsePositive
Woltman’s sign on Physical Exam - Hi-Res .mp4 version here: https://www.grepmed.com/images/13248

53-year-old man presented with fatigue and
with fatigue and sensitivity ... Woltman’s sign — and laboratory
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
#FalsePositives ... #UDS #Testing #Laboratory
Normal Laboratory Values

#Laboratory #Values #Labs #Reference #Normal #Chemistries
Normal Laboratory ... Values #Laboratory