Alpha-1-Antichymotrypsin (A1ACT) by Immunohistochemistry Alpha Thalassemia (HBA1 and HBA2) 7 Deletions Alpha Globin (HBA1 and HBA2) Sequencing Alport Syndrome, X-linked (COL4A5) Sequencing Alpha Globin (HBA1 and HBA2) Deletion/Duplication Alpha-Synuclein by Immunohistochemistry Alpha-Iduronidase Enzyme Activity in Leukocytes Alpha Fetoprotein, Serum (Tumor Marker) Alpha-1-Antitrypsin, Quantitative by ELISA, Random Stool Alpha Fetoprotein (Amniotic Fluid) with Reflex to Acetylcholinesterase and Fetal Hemoglobin Alpha-1-Antitrypsin Clearance, Quantitative by ELISA, Timed Stool Anaerobe Culture and Gram Stain Amylase, Isoenzymes Anaerobic Organism Identification with Reflex to Susceptibility Amyotrophic Lateral Sclerosis (ALS) Panel, Sequencing and Deletion/Duplication, 11 Genes Aluminum, Serum Anaplasma phagocytophilum (HGA) Antibody, IgG Amphetamines, Urine, Quantitative Amantadine Quantitative, Serum or Plasma Amikacin, Random Level