Skip to main content
. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Transfusion. 2018 Dec 17;59(3):931–934. doi: 10.1111/trf.15105

Figure 1. IVIg treatment led to prompt recovery of platelet counts.

Figure 1.

Left ordinate denotes PEA (green), PEA (Low PF4; orange), SRA (red) and zero-heparin SRA (blue) test results. Right ordinate depicts platelet count (dashed black line and open boxes). PEA and PEA, Low PF4 results shown are the average of duplicate measurements, while SRA and platelet counts shown are single determinations. Solid arrows denote IVIg treatment (1g/kg body weight). The assay cut-offs for the PEA (35%) and PEA, Low PF4 (10%) have high specificity for HIT (96% and 98%, respectively, manuscript in preparation). Serotonin release of 20% was used as the positive cut-off for the SRA. The asterisks denote PF4 ELISA OD of 2.782 (day 4) and 2.023 (day 12). Arrows indicate IVIg treatment at a dose of 1gm/Kg. Eno, Enoxaparin; UFH- Unfractionated porcine heparin.