In-Hospital Onset of Pseudothrombocytopenia Days before Surgery

Figure 1

Platelet counts and histograms within normal limits in EDTA on hospital admission (a), in sodium citrate (c), and in heparin (d). The EDTA aliquot obtained six days after admission presented multiple peaks and a depressed curve’s height suggesting respectively platelet aggregation and thrombocytopenia (b). X-axis in femtoliters.

(a)

(b)

(c)

(d)