- ABG

- ABO Typing

- ABO/Rh

- Absolute Neutrophil Count

- ACA IgA

- ACA IgM

- Acanthamoeba/Naegleria species (culture and wet prep)

- ACE

- Acetaminophen

- Acetasalicylic Acid

- Acetazolamide

- Acetone

- ACh Receptor Antibody

- Acid Fast Bacillus Stain

- Acid Fast Bacillus Stain, Modified

- ACTH

- ACTH Stimulation Test

- Activated Protein C Resistance

- Activated PTT

- Adenovirus Antibody

- Adrenocorticotropic Hormone

- AFB

- AFB

- AFB

- AFB Culture

- AFB Stain

- AFP, (Amniotic Fluid)

- AFP, (maternal screening)

- AFP, (Serum)

- AHG (Anti-Human Globulin Test)

- ALA-D and UPG-S, Erythrocytes

- Alanine Aminotransferase

- Albumin (Cerebrospinal Fluid)

- Albumin (Serum)

- Albumin (Urine)

- Albumin/Creatinine Ratio

- Alcohol

- Aldolase

- Aldosterone (Serum)

- Alkaline Phosphatase

- Alkaline Phosphatase Isoenzymes

- Alkaline Phosphatase, Bone Specific

- Alpha-2-Antiplasmin

- Alpha-Fetoprotein (Amniotic Fluid)

- Alpha-Fetoprotein, Maternal Screening (Serum)

- Alpha-Fetoprotein, Tumor Marker (Serum)

- ALT

- Aluminum (Serum)

- Aluminum (Urine)

- Amikacin

- Amino Acid Screen

- Amino Acids, Quantitative (specified)

- Aminolevulinic Acid

- Aminophylline

- Amiodarone

- Amitriptyline

- Ammonia

- Amniotic Fluid Scan

- Amphetamines

- Amylase (Serum)

- Amylase (Urine)

- ANA

- ANC

- ANCA

- Androstenedione

- Angiotensin Converting Enzyme

- Anion Gap

- Anti-Acetylcholine Receptor Antibody

- Anti-Cardiolipin Antibody

- Anti-Centromere Antibody

- Anti-CMV

- Anti-DGP Antibody (IgA+IgG)

- Anti-EBV

- Anti-Endomysial Antibodies

- Anti-Factor VIII Antibody

- Anti-GAD Antibody

- Anti-GBM

- Anti-Gliadin Antibody

- Anti-Glomerular Basement Membrane Antibody

- Anti-HAV

- Anti-HBc

- Anti-Hbe

- Anti-HBs

- Anti-HCV

- Anti-HDV

- Anti-Herpes Simplex Virus

- Anti-Histone Autoantibody

- Anti-HIV Antibody

- Anti-HTLV

- Anti-IA2 Antibody (Islet Cell Antibody Screen with Reflex)

- Anti-Insulin Antibody

- Anti-Islet Cell Antibody

- Anti-Jo-1 Autoantibody

- Anti-MAG Antibody

- Anti-Microsomal Antibodies

- Anti-Microsomal Antibody

- Anti-Mitochondrial Antibody

- Anti-Mumps Antibody

- Anti-Mycoplasma Antibody

- Anti-Myelin Associated Glycoprotein Antibody

- Anti-Myeloperoxidase Antibody

- Anti-Neutrophil Cytoplasmic Antibody

- Anti-Nuclear Antibody Screen and Titer

- Anti-p29

- Anti-Parietal Cell Antibodies

- Anti-Parvovirus Antibody

- Anti-Plasmin

- Anti-Platelet Antibodies, Drug-Associated

- Anti-Platelet Antibodies, Heparin-Associated

- Anti-Platelet Antibodies, Indirect

- Anti-Platelet Antibody, Direct

- Anti-PM-1 Autoanbody

- Anti-Proteinase 3

- Anti-RNP Autoantibody

- Anti-Ro/La

- Anti-Sm (Smith) Autoantibody

- Anti-Smooth Muscle Antibody

- Anti-ss DNA

- Anti-Streptolysin O Antibody

- Anti-Thrombin

- Anti-Thyroglobulin Antibody

- Anti-Thyroid Antibodies

- Anti-Thyroid Peroxidase Antibody

- Anti-Tissue Transglutaminase Antibody, IgA

- Anti-TPO

- Anti-TTG

- Anti-VZV

- anti-Xa

- anti-Xa

- Antiarrhythmics

- Antibiotic associated diarrhea

- Antibody Screen, Red Blood Cell

- Antibody Titer, Red Blood Cell

- Antiglobulin Test

- Antiphospholipid antibody

- Antiplasmin

- Antithrombin - Functional assay

- APC Resistance

- Apolipoprotein (a)

- Apolipoprotein A1

- Apolipoprotein B-100

- APT Test

- APTT

- Arsenic (Urine)

- Arterial Blood Gas Analysis

- Arylsulfatase A, Leukocytes

- ASA

- ASLO

- ASO

- Aspartate Aminotransferase

- Aspergillus (Galactomannan) Antigen

- Aspergillus Antigen

- Aspirin

- AST

- AT III

- ATIII