MSH|^~\&|LAB|SMH|||201910291138||ORU^R01|4092789|D|2.3|||AL|NE PID|1||SM00044280|SM44111|LABTEST^AIR^PRESTO||19870323|M||||||||||SM005225/18|9875450974 OBR|1|31594^LAB|00024325^1908:CE00001R^LAB^190819:CE1^31594|500.3050^TPMT^TPMT RBC Enzyme Activity Pheno^^^21563-2||201908191032|201908191031|||||||201908191031||||||||||LAB|F|||| OBX|1|ST|500.3060^TPMT R^TPMT RBC Enzyme Activity Pheno^^21563-2^21563-2|1|< 2.5^^Y|U/mL RBC|>12.0|L||A^S|F|||201910291138 NTE|1||Patients with low RBC TPMT enzyme activity are at high risk NTE|2||of AZA or 6-mercaptopurine induced leucopenia. NTE|3||Low: <4.0 U/mL RBC NTE|4||Intermediate: 4.0-12.0 U/mL RBC NTE|5||Normal: >12.0 U/mL RBC