73 results
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False Positives ... levofloxacin, ofloxacin, poppy ... seeds, poppy oil ... naproxen and modern tests ... DrugScreening #UDS #Testing
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
chronic kidney tests ... Test for celiac ... if serology is positive ... Non-invasive testing ... Gastrointestinal #Evaluation #workup
Syncope Diagnostic Testing and Evaluation: Cost Effectiveness
Frequency obtained - Abnormal findings - Helped determine etiology of
Syncope Diagnostic Testing ... Cost - Cost per test ... Cardiac stress test ... Syncope #diagnosis #workup ... #testing #Cost
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Can Cause False Positives ... on Drug Tests ... on drug tests? ... (Benadryl) • Poppy ... #drug #tests #differential
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... patient has a positive ... Tuberculin skin testing ... • The positive ... #Diagnosis #Workup
The following graph was prepared based on the latest information on Testing for the Diagnosis of
information on Testing ... There are NO tests ... giving a false positive ... likely a false positive ... InfectiousDiseases #HIVAIDS #Testing
Antenatal Visits - Testing and Schedule
At Every Visit:	
 • Gestational Age	
 • BP
 • Maternal Weight
Antenatal Visits - Testing ... Protein Blood Work ... Glucose Challenge Test ... Glucose Tolerance Test ... 30 weeks) • Position
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... ; if positive, test ... - Positive in ... - CCP antibody testing ... Arthritis #laboratory #workup
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea - Workup ... hydrogen breath test ... A/P, Consider testing ... celiac and/or testing ... Chronic #Diarrhea #Workup
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Used Diagnostic Tests ... reliable noninvasive test ... first-level screening test ... Celiac #Disease #Testing ... #Diagnosis #Workup