Prolonged hemophagocytic lymphohistiocytosis syndrome as an initial presentation of Hodgkin lymphoma: a case report

Table 1 Admission laboratory studies

Test	Change	Value	Reference values
Sodium	H	126 mmol/liter	135–146 mmol/liter
Potassium		4.3 mmol/liter	3.5–5.0 mmol/liter
Chloride	L	94 mmol/liter	98–109 mmol/liter
Bicarbonate	L	21 mmol/liter	24–32 mmol/liter
BUN		7.5 mmol/liter	2.5–7.5 mmol/liter
Creatinine		62 μmol/liter	62–124 μmol/liter
Bilirubin, total	H	46 μmol/liter	3.4–21 μmol/liter
Bilirubin, direct	H	17 μmol/liter	0.0–7 μmol/liter
AST	H	78 U/liter	7–35 U/liter
ALT	H	53 U/liter	1–30 U/liter
Protein, total	L	39 g/liter	60–85 g/liter
Albumin	L	29 g/liter	32–49 g/liter
Triglycerides	H	4.2 mmol/liter	<2.3 mmol/liter
LDH	H	1068 U/liter	100–200 U/liter
Troponin		0.05 μg/liter	0.05–0.50 μg/liter
Iron		8.2 μg/dl	7.2–27.8 μg/dl
Iron binding capacity	L	32.8 μg/dl	44.8–71.6 μg/dl
Iron saturation		25%	20–55%
Ferritin	H	20,392 μg/liter	20–150 μg/liter
Haptoglobin	L	<0.6 μmol/liter	2–16 μmol/liter
White blood cell count	L	2.7 × 10⁹/liter	4–11 × 10⁹/liter
Hemoglobin	L	73 g/liter	125–150 g/liter
Hematocrit	L	0.21%	0.36–0.46
MCV		86 fl	80–99 fl
Platelets	L	15 × 10⁹/liter	140–400 × 10⁹/liter
PT	H	22.5 s	11.6–14.8 s
INR	H	1.93	0.85–1.15
PTT	H	51 s	225–33 s
Fibrinogen	L	<0.6 g/liter	2.0–4.4 g/liter
D-dimer	H	3.43 mg/liter	<0.53 mg/liter
Direct antiglobulin test		negative

H, high value; L, low value; BUN, blood urea nitrogen; INR, international normalized ratio; PT, prothrombin time; PTT partial thromboplastin time; Reference values are institutional standards converted to SI units.

ISSN: 1752-1947