Table 1.

Initial Laboratory Investigations

Test	Patient's Admission Value	Institutional Reference Range
International normalized ratio	1.4	2-3
Erythrocyte sedimentation rate, mm/h	98	0-20
C-reactive protein, mg/dL	7.3	0-1
Hemoglobin, g/dL	5.4	12-15
Iron, μg/dL	37	50-150
Total iron binding capacity, μg/dL	188	270-440
Iron saturation, %	20	20-250
Ferritin, ng/mL	540	7-292