Parameter (International Systems of Mean SD Median Units) Erythrocytes (x[10.sup.12]/L) 5.65 0.97 5.75 PCV 0.39 0.31 0.39 Hemoglobin (g/L) 121.00 13.00 121.00 Mean corpuscular volume (fL) 69.70 10.00 68.10 Mean corpuscular hemoglobin 31.40 2.20 31.40 concentration (%) Leucocytes (x [10.sup.9]/L) 9.70 3.88 8.67 Band neutrophils
(x [10.sup.9]/L) 7.57 0.11 0.00 Segmented neutrophils (x [10.sup.9]/L) 4.93 3.24 4.04 Eosinophils (x [10.sup.9]/L) 0.21 0.33 0.09 Basophils (x [10.sup.9]/L) 0.01 0.03 0.00 Lymphocytes (x [10.sup.9]/L) 4.08 2.23 3.456 Monocytes (x [10.sup.9]/L) 0.46 0.87 0.27 Platelets (x [10.sup.9]/L) 270.72 52.12 268.60 Parameter (International Systems of Min.-Max.
Within 1 week after receiving doxycycline, the patient's symptoms and hematologic abnormalities had resolved (neutrophil count 4,378 cells/[micro]L, no band neutrophils
, and platelet count of 320,000/[micro]L).
The elevated white blood cell count, elevated erythrocyte sedimentation rate, increased presence of band neutrophils
, elevated concentrations of neutrophils and the increased concentration of acute phase proteins demonstrate this immune response.
Cells were pre-classified into: band neutrophils
, segmented neutrophils, lymphocytes, monocytes, eosinophils, basophils, metamyelocytes, myelocytes, promyelocytes, blast cells, lymphocyte variant forms and plasma cells.
On the following day, laboratory studies revealed leukopenia with lymphocytosis and absence of band neutrophils
, thrombocytopenia, decreased erythrocyte sedimentation rates (ESR), hyperbilirubinemia, mostly due to an increase in direct bilirubin, a large increase in liver enzymes levels, and anti-HIV serology and dengue fever antigen both negative.
There are 5 types of WBCs, each with different functions, that make up the differential: neutrophils (band neutrophils
and segmented neutrophils), monocytes, lymphocytes, eosinophils, and basophils.
The white blood cell differential revealed the following values: 0.63 segmented neutrophils; 0.02 band neutrophils
; 0.13 lymphocytes; 0.15 monocytes; 0.02 basophils; 0.03 myelocytes; and 0.02 metamyelocytes.