Rule description: Systolic Blood Pressure must be greater than the corresponding Diastolic Blood Pressure.

Rule expression

if (SYS>DIA)
{
return true;
}
else
{
return false;                //System sends query when return false condition is met
}

Query Message: Systolic Blood Pressure is less than or equal to Diastolic Blood Pressures. Please correct or confirm.

Definitions

SYS

Corresponds to Systolic Blood Pressure item from rule description.

DIA

Corresponds to Diastolic Blood Pressure from the rule description.

Return value

Boolean

Returns either true or false. System raises query when return false condition is met.

Verification steps

1. Using a subject for testing, go to the given visit and form containing the items to check, in this example the systolic blood pressure <SYS> and diastolic blood pressure <DIA>.
2. Update the form items SYS and DIA as in the following table and verify the result is as listed:

   SYS	DIA	Result
   120	Null	No query
   120	120	Query
   120	119	No query
   120	121	Query
   123	121	No query
   115	121	Query
   Null	121	No query
   125	121	No query