81 results
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
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
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
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
Hepatitis B Virus Serology and Interpretation
HBsAg - Anti-HBs - Anti-HBc - HBeAg - Anti-HBe
 - Acute
carrier state (low ... (immunity) - False-positive ... diagnosis #laboratory #hepatology
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
Interpretation of Hepatitis B Serologies 
HBsAg - HBcAb (total) - HBcAb (IgM) - HBsAb
Susceptible to HBV
Immune
infection vs "Low ... serology #diagnosis #hepatology ... interpreation #testing
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Differential Diagnosis Algorithm ... Production - Flow ... Eating disorders ... Differential #Diagnosis #Algorithm ... #Hematology
Complement Deficiency Testing Algorithm
 • Normal CH50 and AH50 AND High suspicion for complement deficiency
 •
Complement Deficiency Testing ... Algorithm • Normal ... deficiency • Low ... Complement #Deficiency #Testing ... #Algorithm #hematology