Types of Qualifier variables

Example :

Subject   AB-125   cholesterol measures 229  mg/dL  on  June 26,2004

In SDTM , this data goes into LB Domain with following variables

Identifier : USUBJID=’AB-125’

Topic : Lab test short name  LBTESTCD=’Cholesterol’

Qualifiers:

Result Qualifier:Result or finding in Original units   LBORRES=’229’

Variable Qualifier : Units in LBORRESU=’mg/dL’

Timing : Date or time of measurement is LBDTC=2004-06-24

Additional timing and qualifiers may be added as required as per SDTM LB Domain model