Illustrates Domains
LB
Illustrates Variables
ABLFL
Illustrates Data Structures
ADAM OTHER
Content
Many qualifier variables for lab tests are expected per rules of the SDTM LB domain, and are therefore shown in the example below. Some of these may not be available in a retrospective query of real world data. Other permissible variables such as fasting status (LBFAST) are also shown. Any permissible variable can be added (or excluded) from the dataset as necessary. Expected variables are not required, but excluding them would result in a warning if the dataset is validated with validation software. Refer to the SDTMIG v3.4, section 6.3.5.6, Laboratory Test Results (LB) for a full description of these variables.
The following examples include for laboratory measurements and results including point of care glucose testing at home.
SMIS Item Numbers illustrated include: 5 - LDL-cholesterol, 6 - HDL-cholesterol, 8 - Serum creatinine, 9 - Urine protein, 10 - Blood glucose, 12 - HbA1c (NGSP), 13 - AST, 16 - Serum potassium, 18 - Triglyceride, 22 - Serum albumin, 23 - Hematuria (Occult blood in urine), 24 - Total cholesterol, 25 - Urine albumin/creatinine, 26 - AST, 28 - Urine glucose, 29 - y-GTP (GGT), 32 - Uric acid (Urate), 36 - Urine protein/creatinine, 37 - Urine protein/Day, 38 - Serum total protein, 39 - BUN, 40 - Hemoglobin, 41 - Cystatin C, 42 - Self-monitoring blood glucose
The row descriptions below only reference rows in the example that are notable for their use of variables or for their use of controlled terminology which differs from the SMIS Item Sets.
Example 3a
Example 3b
The following example shows how to represent self-monitoring of blood glucose performed at home by the participant using a glucometer point of care self-test at different times related to meals. The non-standard variable LBSETTNG indicates the setting as being either at home or in clinic.