14 results
Syphilis Diagnostic Algorithm
 • Syphilis (TP) EIA
 • RPR
 • A different treponemal specific test (TPPA)

ID
Syphilis Diagnostic ... Algorithm • Syphilis ... treponemal specific test ... #Algorithm #Testing ... #laboratory #RPR
COVID-19 Diagnostics In Context
Nucleic acid tests (NATs, for viral RNA)
1. Real time RT-PCR
2. Isothermal amplifcation
3. CRISPR
4.
Nucleic acid tests ... µNMR) Protein tests ... test (RDT) 2. ... #testing #laboratory ... #tests #pcr
Urine Drug Screens - Common drugs that may cause false positive tests 

Amphetamines:
Bupropion, Labetalol, Methylphenidate, Phenylephrine,
false positive tests ... DrugScreens #UDS #Laboratory ... #Toxicology #Diagnosis ... #FalsePositive ... #Testing
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Algorithm for Investigation ... of Abnormal Coagulation ... Tests - Prolonged ... #APTT #Laboratory ... #Hematology #Diagnosis
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
tests algorithm ... liver blood tests ... of liver blood tests ... of liver blood test ... indicates all the tests
Acromegaly Testing Algorithm
INDICATIONS FOR TESTING:
 • Adults – enlarged facial or acral features, abnormal musculoskeletal growth
acral features, abnormal ... linear growth Tests ... Glucose Tolerance Test ... Growth Hormone (GH) test ... #Algorithm #diagnosis
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
ACTH stimulation test ... CRH stimulation test ... - Serum tests that ... Insufficiency #Evaluation #laboratory ... #diagnosis #testing
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Algorithm - Evaluation ... then go to stim testing ... Standard Stim test ... this indicates normal ... #Stimulation #Test
Causes of Inaccurate Fecal Occult Blood Test Results 

False Positive gFOBT:
Ingestion of nonhuman heme (eg, meat
Fecal Occult Blood Test ... #OccultBlood #Testing ... #Laboratory #FalsePositive ... FalseNegative #Diagnosis
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
naproxen and modern tests ... #FalsePositives ... DrugScreening #UDS #Testing ... #Laboratory #diagnosis