Ordering Recommendations

Differential evaluation of autoimmune liver disease of unknown etiology, especially autoimmune hepatitis (AIH) of childhood onset. Use in combination with Liver Cytosolic Antigen Type 1 (LC-1) Antibody, IgG (2010711) when evaluating for AIH-2.

EPIC code

LAB3262

Collect

Serum separator tube.

Specimen Preparation

Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 month.

Unacceptable Conditions

Severely hemolyzed or lipemic specimens.

ARUP Test Code

0099270

Performed

Mon-Sat

Reference Interval

Less than 1:20 Normal

Reported

1-3 days

Methodology

Semi-Quantitative Indirect Fluorescent Antibody

Last Updated

12-19-2024

CPT Codes

86376

Synonyms

  • Liver-Kidney Microsome antibody, IgG IIF
  • Liver-Kidney Microsome antibody, IgG IFA
  • LKM antibody, IgG IFA
  • LKM antibody, IgG IIF
  • LKM IgG IFA
  • LKM IgG IIF
  • LAB3262

Referral Lab

ARUP Test Code

0099270

Interpretive Data

Liver-Kidney Microsome IgG antibody (anti-LKM), as detected by indirect immunofluorescent antibody (IFA) techniques, may be observed in patients with autoimmune hepatitis type 2 (AIH-2), AIH-2 associated with autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED), viral hepatitis C or D, and some forms of drug-induced hepatitis. This IFA does not differentiate among the four types of LKM antibodies (LKM-1, LKM-2, LKM-3, and a fourth type that recognizes CYP1A2 and CYP2A6 antigens). Of these, anti-LKM-1 (cytochrome P450IID6) IgG antibodies are considered specific for AIH-2.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Lab Test Information

Ordering Recommendations

Differential evaluation of autoimmune liver disease of unknown etiology, especially autoimmune hepatitis (AIH) of childhood onset. Use in combination with Liver Cytosolic Antigen Type 1 (LC-1) Antibody, IgG (2010711) when evaluating for AIH-2.

EPIC code

LAB3262

Collect

Serum separator tube.

Specimen Preparation

Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 month.

Unacceptable Conditions

Severely hemolyzed or lipemic specimens.

ARUP Test Code

0099270

Performed

Mon-Sat

Reference Interval

Less than 1:20 Normal

Reported

1-3 days

Methodology

Semi-Quantitative Indirect Fluorescent Antibody

Last Updated

12-19-2024

CPT Codes

86376

Synonyms

  • Liver-Kidney Microsome antibody, IgG IIF
  • Liver-Kidney Microsome antibody, IgG IFA
  • LKM antibody, IgG IFA
  • LKM antibody, IgG IIF
  • LKM IgG IFA
  • LKM IgG IIF
  • LAB3262

Referral Lab

Internal Laboratory Use

ARUP Test Code

0099270

Interpretive Data

Liver-Kidney Microsome IgG antibody (anti-LKM), as detected by indirect immunofluorescent antibody (IFA) techniques, may be observed in patients with autoimmune hepatitis type 2 (AIH-2), AIH-2 associated with autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED), viral hepatitis C or D, and some forms of drug-induced hepatitis. This IFA does not differentiate among the four types of LKM antibodies (LKM-1, LKM-2, LKM-3, and a fourth type that recognizes CYP1A2 and CYP2A6 antigens). Of these, anti-LKM-1 (cytochrome P450IID6) IgG antibodies are considered specific for AIH-2.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.