OBX 8 is the field for abnormal flag.
The source may use
'0' for 'normal'
'1' for 'higher than normal range'
'2' for 'lower than normal range'
Yet the destination software mat expect:
'H' for 'higher than normal range'
'L' for 'lower than normal range'
In this case, a simple Javascript switch function can
be used to convert '1' to 'H' and '2' to 'L'.
(Thanks to Mr Amarnath Krishnan for the Code)