| ACTH |
| Alkaline phosphatase isoensyme |
| ANA |
| Anti Cardiolipin Ab (IgG) |
| Anti GM1 Ab (IgG) |
| Anti Phospholipid Ab (IgM) |
| Anti Thyroglobulin Ab |
| Apo A1 |
| Apo B |
| APTT |
| Arylsulfatase A |
| ASCA (IgG) |
| Ascit fluid culture |
| ASO |
| Aspirin (salicylate) |
| Acetaminophen (drug abuse) |
| Adalate (drug abuse) |
| Adriamycin (drug abuse) |
| Alprazolam (drug abuse) |
| Arsenic (drug abuse) |
| Amitriptyline (drug abuse) |
| Amphetamines (drug abuse) |
| ACE |
| Acetaminophen |
| Acetylcholine receptor Ab |
| Acid phosphatase(prostatic) |
| Acid phosphatase(total) |
| ADA |
| Adenovirus |
| Addis count |
| Albumin |
| Aldolase |
| Aldosterone |
| Alkaline phosphatase |
| Alpha 1 Anti Trypsin |
| Alpha fetoprotein |
| Alprazolam |
| AML 1/ETO PCR - AML- 2 |
| Amino acids chromatography |
| Ammonia |
| Amylase |
| Anaerobic culture |
| ANCA |
| Androstenedione |
| Anti smooth muscle Ab (ASMA) |
| Anti A titer |
| Anti B titer |
| Anti B2 Glycoprotein Ab (IgG) |
| Anti B2 Glycoprotein Ab (IgM) |
| Anti Cardiolipin Ab (IgM) |
| Anti Centromer Ab (IgG) |
| Anti DNA (ds) |
| Anti Endomesial Ab (IgA) |
| Anti Endomesial Ab (IgG) |
| Anti GBM Ab |
| Anti Gliadin Ab (IgA) |
| Anti Gliadin Ab (IgG) |
| Aspirin (salicylate) (drug abuse) |
| Atropin (drug abuse) |
| Anti GM1 Ab (IgM) |
| Anti leptospira Ab(IgG) |
| Anti leptospira Ab(IgM) |
| Anti jo- 1 Ab |
| Anti Mullerian hormone (AMH) |
| Anti NMO Ab |
| Anti Parietal Ab |
| Anti Pemphigus Ab (IgG) |
| Anti Phospholipid Ab (IgG) |
| Anti Platelet Ab |
| Anti PR3 |
| Anti RNP Ab |
| Anti SCL- 70 Ab (Topoisomerase) |
| Anti smith Ab |
| Anti sperm Ab |
| Anti SSA (Ro) Ab |
| Anti SSB (La) Ab |
| Antimitochondrial Ab (AMA) |
| Antithrombin III |
