149 results
Laboratory Testing in Hemolytic Anemia

Intravascular vs Extravascular Hemolysis
Reticulocytes
Unconjugated bilirubin
LDH
Peripheral smear
Haptoglobin
Urine hemosiderin
Urine hemoglobin
Carboxyhemoglobin

#Hemolytic #Anemia #Laboratory #Testing #workup
Laboratory Testing ... Haptoglobin Urine ... hemosiderin Urine ... Anemia #Laboratory #Testing ... #workup #diagnosis
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Hematuria Workup ... mimics, repeat testing ... WBCs, or urine ... → Urine culture ... Diagnosis #Algorithm #Workup
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False ... Positives on Urine ... (High Rate of False ... FalsePositives #Urine ... DrugScreening #UDS #Testing
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
Urine Drug Screens ... that may cause false ... Diphenhydramine #Urine ... FalsePositive #Testing
Diagnostic algorithm for the workup of hypercalcemia. The diagnostic workup for patients presenting with hypercalcemia rests
algorithm for the workup ... The diagnostic workup ... Urine calcium-creatinine ... from a 24-hour urine ... Thus, further testing
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculin skin testing ... (TST) False-negative ... microscopy • Testing ... recommended because false-negative ... #Diagnosis #Workup
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... evaluation • False ... cauliflower, ETOH • False ... to unnecessary testing ... #OccultBlood #Testing
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
that Can Cause False ... Drug Tests Urine ... Amphetamine false ... Cannabinoid false ... Benzodiazepine false
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
Pathogens, and Testing ... and pneumocystis False ... other fungi • False ... Galactomannan #Pathogens #Testing
Antenatal Visits - Testing and Schedule
At Every Visit:	
 • Gestational Age	
 • BP
 • Maternal Weight
Antenatal Visits - Testing ... Maternal Weight • Urine ... Protein Blood Work ... Well-being GBS Testing ... Antenatal #Visits #Testing