Laboratory Tests
- Maryam Abdallah
Overview: i2b2 allows users to search for whether a patient has completed a specific laboratory test. Users can also restrict queries to only include patients with specific laboratory test results. You can search for exact lab values, specify a range of values, or search for values greater or less than a specified number.
Laboratory tests are based on the Logical Observation Identifiers Names and Codes (LOINC®) universal coding system. Each laboratory test corresponds to a unique LOINC code. More information on the LOINC coding system can be found on the LOINC webpage.
Dates: Laboratory tests in i2b2 are available from 2011 to present
Laboratory tests are grouped as follows in i2b2:
Category | Subcategories |
|---|---|
Chemistry | Bicarbonate Calcium Chloride Creatinine Glucose Phosphate Potassium Sodium Urate Urea nitrogen ALP ALT AST GGT LDH Cholesterol in HDL Cholesterol in LDL Cholesterol non HDL Cholesterol Total Cholesterol/HDL Ratio Triglyceride Bilirubin Myelin basic protein Albumin C reactive protein Protein |
Hematology/Coagulation | Basophils Eosinophils ESR Hematocrit Hemoglobin Hemoglobin A1c Lymphocytes MCH MCHC MCV Monocytes Neutrophils Platelet Count RBC Count RDW WBC Count |
Microbiology | Reagin Ab in CSF Reagin Ab in serum Mycobacterium tuberculosis Mitogen stimulated gamma interferon Mycobacterium tuberculosis stimulated gamma interferon |
Urinalysis | Protein [Mass/Time] in 24 hour Urine Protein [Mass/Volume] in 24 hour Urine Protein in Urine Protein in Urine by Test strip |
Virus | Hepatitis B virus core Hepatitis B virus core Ab Hepatitis B virus core IgG Hepatitis B virus core IgM Hepatitis B virus surface Ab Hepatitis B virus surface Ag Hepatitis C virus Ab Hepatitis C virus IgG Hepatitis C virus IgM Hepatitis C virus RNA |
Note that laboratory tests considered sensitive (such as HIV) cannot be queried in i2b2