Table 1. Laboratory test results for 4 dates during illness of patient presumably ill with tick-borne relapsing fever, Los Angeles County, California, USA, 2006.

Test	Sep 21	Oct 1	Oct 2	Oct 3	Reference range
Hematocrit, %	43.3	42.3	33.7	33.3	39–55
Erythrocyte count, 10–6/mm3	4.6	4.6	3.6	3.6	4.3–5.9
Platelet count/mm3	114	145	127	162	130–450
Leukocyte count/mm3	8.8	11.5	12.8	9.5	4.8–10.8
Neutrophils, %	83	86	64	58	50–70
Band cells, %		5	11	5	0–4
Urea nitrogen, mg/dL	16	10	11	9	6–20
Creatinine, mg/dL	1.2	1.1	1.1	1.0	0.5–1.2
Aspartate aminotransferase, U/L		32	25	29	10–42
Alanine aminotransferase, U/L		68	52	55	10–60
Total bilirubin, mg/dL		2.2	1.5	1.2	0–1.5
Alkaline phosphatase, U/L		206	143	140	42–121
Sodium, mg/dL	134	133	138	140	135–145
Potassium, mg/dL	3.1	3.6	4.5	4.3	3.6–5.0
Glucose, mg/dL	133	112	119	107	70–110
Albumin, g/dL		2.7	2.1	2	3.2–5.5