166 results
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
that Can Cause False ... Amphetamine false ... Cannabinoid false ... levofloxacin (Levaquin ... #drug #tests #differential
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Uric Acid - Low ... Acid → renal salt wasting ... #Diagnosis #Algorithm
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... evaluation • False ... cauliflower, ETOH • False ... , extended LOS ... #OccultBlood #Testing
Algorithm for the diagnosis of chronic diarrhea.
It is usually impractical to test and treat the many
Algorithm for the ... reduce unnecessary testing ... the much smaller differential ... Chronic #Diarrhea #Algorithm ... #Testing
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
QFT) • 5 y/o + low ... Tuberculin skin testing ... (TST) False-negative ... microscopy • Testing ... recommended because false-negative
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Insufficiency Differential ... Diagnosis Algorithm ... , hypoglycemia Testing ... Baseline plasma ACTH Low ... insufficiency • Low
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... (High Rate of False ... not result in false ... hemp products are low ... DrugScreening #UDS #Testing
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
Hypophosphatemia Diagnostic Algorithm ... - 1° Renal PO4 wasting ... Hypophosphatemia #phosphorus #low ... #diagnosis #Algorithm ... #differential #
Syphilis Serologic Testing - Treponemal and Non-Treponemal Testing Algorithms
Treponemal Testing:
 • Confirmatory or Screening - Detection
Syphilis Serologic Testing ... Non-Treponemal Testing ... Algorithms Treponemal ... Testing: • Confirmatory ... Definitive • Low
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 • Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Cushing Syndrome Testing ... Algorithm INDICATIONS ... FOR TESTING: • ... Cortisol, Saliva • Low ... Syndrome #diagnosis #algorithm