Lab Test Directory—Saint Luke's Regional Laboratories
| STIMULATION (ordered by the testing department only) | Stimulation Testing |
| STORAGE | Storage |
| S PNEUMO CSF | Streptococcus pneumoniae Antigen, CSF |
| S PNEUMO U | Streptococcus pneumoniae Antigen, Urine |
| PNEUMO 23 | Streptococcus pneumoniae IgG Antibodies, 23 Serotypes |
| STREPTOMY | Streptomycin Level |
| STRONGY | Strongyloides Antibody IgG, ELISA |
| SUBSTANCE P | Substance P |
| SULFM | Sulfatide Autoantibody |
| SULFONYL | Sulfonylurea Screen, Quantitative |