364 results
Thyroid Function Tests (TFTs) and Interpretation

 • TSH, Free T4, Free T3
 • T3 Uptake
 •
Thyroid Function Tests ... (TFTs) and Interpretation ... Thyroid #Function #Tests ... #TFTs #Interpretation ... laboratory #patterns #differential
Algorithm for the diagnosis of chronic diarrhea.
It is usually impractical to test and treat the many
diarrhea before testing ... reduce unnecessary testing ... pick specific tests ... the much smaller differential ... Diarrhea #Algorithm #Testing
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
has a positive TST ... to have their TST ... (TST) False-negative ... TST result may ... #Diagnosis #Workup
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 ... Anemia #Laboratory #Testing ... #workup #diagnosis
Syncope Diagnostic Testing and Evaluation: Cost Effectiveness
Frequency obtained - Abnormal findings - Helped determine etiology of
Syncope Diagnostic Testing ... etiology of syncope Tests ... Syncope #diagnosis #workup ... #testing #Cost
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea - Workup ... A/P, Consider testing ... celiac and/or testing ... Chronic #Diarrhea #Workup ... #diagnosis #differential
Ancillary Studies in the Workup of Syncope

#Syncope #Ancillary #Workup #Testing #Diagnosis
Studies in the Workup ... Syncope #Ancillary #Workup ... #Testing #Diagnosis
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Eosinophil Disorders Testing ... INDICATIONS FOR TESTING ... evaluation or workup ... 1,500 cells/µL Workup ... Disorders #Algorithm #Differential
Liver Function Tests (LFTs)
 - Aspartate aminotransferase (AST) 
 - Alanine aminotransferase (ALT) 
 - Alkaline
Liver Function Tests ... Liver #Function #Tests ... Laboratory #Diagnosis #Testing
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
Additional laboratory tests ... chronic kidney tests ... Non-invasive testing ... Gastrointestinal #Evaluation #workup