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So far we have retrieved the reticulocytes observation. This time we will test the value of that against a threshold, and if abnormal generate an onscreen comment.

This will be in the form of a new observation. This can be persisted if the mode metadata is changed to 'Server' .

Lets get the value of the observation, check it against a threshold and then generate the comment as a system generated observation. Replace the previous GELLO file with the following from the line that starts with "Let incoming_retic.."

Let incoming_retic_value: PQ = observations->select(observationCode.implies(retic_LN).value)
                                           ->sortedBy(dateTime).last().value.oclAsType(PQ)

--do Booleans or Tests
Let highRetics: Boolean = If incoming_retic_value.oclIsDefined() then 
                            if incoming_retic_value > PQ{value = 100, unit = '10*9/L'}
                              then true
                            else false endif
                           else false endif   

-- prepare comment
Let commentCode:CD = CD{code = '8251-1', 
                        codeSystem = '2.16.840.1.113883.6.1', 
                        codeSystemName ='LOINC', 
                        displayName = ST{value='Comment'}
                        }
Let highReticsCommentObs: Observation = Observation{observationCode = commentCode,
                                                    value = ST{value = 'Raised reticulocytes, consider haemolytic anaemia and blood loss as causes.'}
                                                   }
-- result

Let result:Sequence(Observation)
        = Sequence{highReticsCommentObs
                   }
 result


And after running this we can see the result in the variables on LHS:


The GELLO can be saved locally, then uploaded to the Decision Support Repository using a different top menu choice in Explorer Online. This then enables the script to run in the results UI.

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