Hemophagocytic Lymphohistiocytosis Induced by Severe Pandemic Influenza A (H1N1) 2009 Virus Infection: A Case Report

Table 1

Laboratory test results of the case on different days.

Variable	01/07/2010	01/08/2010	01/14/2010	01/20/2010
Days in the People’s Hospital of Guizhou Province	1	2	7	13
Pandemic influenza A (H1N1) 2009 virus (RT-PCR)	—	Positive	Negative	—
White blood cell (cells/L)	2.17×10^9	3.82×10^9	13.24×10^9	8.88
Differential count (%)
Neutrophils	22.5	74.2	86.5	68.4
Lymphocytes	76.5	7.9	8.8	24.1
Red blood cell (cells/L)	4.69×10^12	2.92×10^12	3.62×10^12	4.71×10^12
Hemoglobin (g/L)	116	75	103	127
Platelet (cells/L)	46×10^9	19×10^9	102×10^9	122×10^9
C-reactive protein (mg/L)	158.30	175.50	16.20	9.2
Albumin (g/L)	30.3	18.8	38.1	36.9
Triglyceride (mmol/L)	—	3.13	1.76	1.68
Creatinine (umol/L)	190.7	332.8	82.6	66.1
Urea nitrogen (mmol/L)	8.4	21.3	10.8	6.5
Alanine transaminase(u/L)	52	56	32	14
Direct bilirubin (mol/L)	12.7	11.9	5.9	5.0
NK-cell activity	—	2%	7.5%	20%
Blood cultures	Negative	Negative	Negative	Negative

“—”Denotes no data.