Figure 1.
Neutrophil serum level from 22nd of January to 10th of December 2018. Figure 1 displays the neutrophil level by serum testing from 22nd of January to 10th of December 2018. The x axis demonstrates dates of sampling, and the y axis corresponds with absolute neutrophil count (ANC) ×109/L. Initially, there is a period of neutropenia (1.0 × 109/L-2.0 × 109/L). Filgrastim, G-CSF 30 MU, was prescribed on February 10th resulting in an ANC which increased from 1.78 × 109/L to 4.8 × 109/L one day later. A further neutropenic episode occurred on March 4th with ANC 1.64 × 109/L. Lithium was commenced on March 10th. Clozapine rechallenge in September corresponded with further deterioration in ANC measurements prompting close liaison with hematology to devise a filgrastim treatment protocol.