Case Report
Copyright ©The Author(s) 2019.
World J Hepatol. Nov 27, 2019; 11(11): 735-742
Published online Nov 27, 2019. doi: 10.4254/wjh.v11.i11.735
Table 1 Laboratory testing done to investigate acute liver failure etiology
Laboratory testReference rangeResults
Liver function tests
Alanine aminotransferase15-41 U/L981 (H)
Aspartate aminotransferase3-34 U/L1062 (H)
Alkaline phosphate45-117 U/L248 (H)
Total bilirubin0.2-1.3 mg/dL1.3 (N)
Conjugated bilirubin0.0-0.30 mg/dL0.73 (H)
Total Protein6.3-8.2 g/dL6.8 (N)
Albumin3.5-5.0 g/dL2.8 (L)
Ammonia level0-32 μmol/L44 (H)
Coagulation Studies
Prothrombin time10-13.5 s19.0 (H)
International normalized ration0.8-1.21.6 (H)
Viral serologies
Hepatitis A, IgMNonreactiveNonreactive
Hepatitis A, IgGNonreactiveReactive
Hepatitis B, core IgMNonreactiveNonreactive
Hepatitis B, surface antigenNonreactiveNonreactive
Hepatitis C antibodyNonreactiveNonreactive
Human immunodeficiency virus 1 and 2 antibody/antigenNonreactiveNonreactive
Herpes simplex virus 1 and 2 IgMNegativeNegative
Cytomegalovirus, IgMNegativeNegative
Cytomegalovirus, IgGNegativeNegative
Epstein Barr virus, IgMNegativeNegative
Parvovirus B19, IgM/IgGNegativeNegative
Rapid plasma regain (RPR)NonreactiveNonreactive
Influenza A, antigenNegativeNegative
Influenza B, antigenNegativePositive
Autoimmune liver disease panel
Antinuclear antibodyNegativeNegative
Antinuclear antibody titer< 1.0 U0.6 (N)
Antismooth muscle antibodyNegativeNegative
Antimitochondrial antibody, M2< 0.1 U< 0.1 (N)
Toxicology studies
Acetaminophen level10-30 mcg/ml< 2
Ethanol level0-3 mg/dL< 3
Urine toxicology screenNegativeNegative