Reference intervals for serum amyloid A, haptoglobin, ceruloplasmin, and fibrinogen in apparently healthy neonatal lambs.

Background: Acute-phase proteins (APPs) are considered biomarkers for diagnoses, prognoses, and treatment and health status monitoring. Reference intervals (RIs) are an integral part of diagnostic laboratory testing and clinical decision-making. The RIs for neonatal lambs are lacking.