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

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
that may cause false ... Amphetamines: Bupropion ... Toxicology #Diagnosis #FalsePositive ... #Testing
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... brompheniramine, bupropion ... hemp products are low ... #FalsePositives ... DrugScreening #UDS #Testing
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 ... #FOBT #Guaiac #FalsePositives
Agents Causing Potential False-Positive Results With Urine Drug Screening 

#Urine #DrugScreens #UDS #Laboratory #Toxicology #Diagnosis #FalsePositive
Causing Potential False-Positive ... Toxicology #Diagnosis #FalsePositive ... #Testing
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing ... QFT) • 5 y/o + low ... (TST) False-negative ... recommended because false-negative ... #Tuberculosis #Testing
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 ... Specificity and False ... clinical situations, low ... Galactomannan #Fungal #Testing ... #FalsePositives
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
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Uric Acid - Low ... Acid → renal salt wasting ... Differential #Diagnosis #Algorithm ... nephrology #sodium #low
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... , hypoglycemia Testing ... Baseline plasma ACTH Low ... insufficiency • Low ... Differential #Diagnosis #Algorithm