MSH|^~\&|LAB|DH|||201911141334||ORU^R01|4105629|D|2.3|||AL|NE PID|1||DH00002172|DH2135|LABTEST^DHDXHFEMALEADULTADULTA^||19840327|F||||||||||DH000029/19|9875062107 OBR|1|35179^LAB|00027021^1411:HC00001R^LAB^141119:HC1^35179|231.2500^PF4^Anti-Platelet Factor 4 Group^^^34701-3||201911141331|201911141000|||||||201911141331||||||||||LAB|I|||| OBX|1|ST|231.2485^HIT R^Platelet PF4 Antibodies^^45155-9^45155-9|1|4.5^^Y|U/mL|<1.0|HH||A^S|F|||201911141334 NTE|1||* CRITICAL VALUE NTE|2||This assay has a sensitivity of at least 95% and a NTE|3||specificity of 75% at the 1.0 U/mL cut-off. For results NTE|4||>4.0 U/mL the specificity is 95%. HIT remains a clinical NTE|5||diagnosis and results should be interpreted using the 4T's NTE|6||probability score.