Hematology Abbreviations

- A -

• AABB

American Association of Blood Banks



• ACT

Activated Clotting Time



• ADH

Antidiuretic Hormone



• AHG

Antihuman Globulin



• AHTR

Acute Hemolytic Transfusion Reaction (also HTR)



• AIDS

Acquired Immune Deficiency Syndrome



• ALT

Alanine Aminotransferase



• ANA

Antinuclear Antibody



• ANH

Acute Normovolemic Hemodilution



• anti-HBc

Antibody to Hepatitis B Core Antigen



• anti-HCV

Antibody to Hepatitis C Virus



• anti-HTLV-I/II 

Antibody to Human T-cell Lymphotropic Virus type I/II



• aPPT

Activated Partial Thromboplastin Time



• ARDS

Acute Respiratory Distress Syndrome



• AST

Aspartate Transaminase



• ATIII

Antithrombin III