5 results
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
drugs that may cause ... false positive tests ... DrugScreens #UDS #Laboratory ... Toxicology #Diagnosis #FalsePositive ... #Testing
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Causes of Inaccurate ... Fecal Occult Blood Test ... #OccultBlood #Testing ... #Laboratory #FalsePositive
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
run-down or tired • Fevers ... adults • Blood tests ... Pulmonary function tests ... Bronchoscopy Laboratory ... Sweat chloride test
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 ... the use of this test ... post-2010 almost never ... #FalsePositives ... #Laboratory #sensitivity
A blood test and/or 24 hour urine collection for the breakdown product of adrenaline & noradrenaline
A blood test and ... blood or urine testing ... In certain cases ... the tumor should never ... Pheo #Diagnosis #Algorithm