Special Stain, Thioflavin S

Stachybotrys chartarum/atra Panel II

Special Stain, Toluidine Blue

Staphylococcus Surveillance Culture

Streptolysin O Antibody (ASO)

Striated Muscle Antibodies, IgG with Reflex to Titer

Strongyloides Antibody, IgG by ELISA, Serum

Strychnine, Serum or Plasma

Substance P, EIA

Succinylacetone, Quantitative, Urine

Sulfate, Urine

Sulfate-3-Glucuronyl Paragloboside (SGPG) Antibody, IgM

Sulfhemoglobin Quantitative, Whole Blood

Sulfonamides (Sulfas)

Sulfonylurea Hypoglycemia Panel, Quantitative, Urine

Streptococcus pneumoniae Antibodies, IgG (9 Serotypes)

Supersaturation Profile, Urine

Streptococcus pneumoniae Antigen, CSF

Synaptophysin by Immunohistochemistry

Streptococcus pneumoniae Antigen, Urine