A boy with recurrent pneumonia

Table 1 Blood test results

White blood cells cells·mm⁻³	13,700
Polymorphonucleates %	73.8
Lymphocytes %	21.8
Monocytes %	7
Eosonophils %	0.62
Haemoglobin g·dL⁻¹	11.9
Haematocrit %	35.7
Platelets n·mm⁻³	248
Erythrocyte sedimentation rate mm·h⁻¹	57
C-reactive protein mg·dL⁻¹	12.6

Table 2 Repeat blood test results

White blood cells cells·mm⁻³	6,600
Polymorphonucleates %	42.9
Lymphocytes %	46.4
Monocytes %	7.2
Eosonophils %	2.87
Haemoglobin g·dL⁻¹	12.2
Haematocrit %	37.3
Platelets n·mm⁻³	281
Erythrocyte sedimentation rate mm·h⁻¹	18
C-reactive protein mg·dL⁻¹	0.31