| S100BP | S-100B Protein, Serum (ARUP via RPS) |
| SCPA | Saccharomyces cerevisiae Antibodies, IgG & IgA (RPS) |
| SALI | Salicylate |
| STYPHI | Salmonella typhi & paratyphi Antibodies (ARUP via RPS) |
| FABRS | SARS-CoV-2, Influenza A/B & RSV Combo Test (RPS) |
| SCHAG | Schistosoma Antibody IgG, Serum (RPS) |
| SCLER | Scleroderma (Scl-70) (ENA) Antibody, IgG (RPS) |
| FSCPR | Scleroderma Comprehensive Profile (MAYO via RPS) |
| SCLERD | Scleroderma Profile (RPS) |
| SECRET | Secretin (RPS) |
| ESR | Sed Rate |
| SELEP | Selenium, Plasma (ARUP via RPS) |
| SELER | Selenium, RBC's (ARUP via RPS) |
| SELE | Selenium, Serum (RPS) |
| SEMB | Semen Analysis w/WHO Morphology (MAYO via RPS) |
| SPVC | Semen Post Vasectomy Check |
| SPR3 | Serine Protease 3 Antibody (RPS) |
| SERQ | Seroquel (Quetiapine) (RPS) |
| HIAA | Serotonin (5HIAA), Urine, Random or 24 Hr (RPS) |
| HTR2V | Serotonin Receptor Genotype (HTR2A and HTR2C) (MAYO via RPS) |
| SRAUH | Serotonin Release Assay (SRA), Unfractionated Heparin (ARUP via RPS) |
| SRTN | Serotonin, 24 Hr Urine (Mayo # 87834) |
| SSER | Serotonin, Serum (RPS) |
| SERO | Serotonin, Whole Blood (RPS) |
| SAA | Serum Amyloid A (SAA) (LCH 520380) |
| SHBG | Sex Hormone Bind Glob (PSPC) |
| TRIPCR | Sexually Transmitted Disease Panel 1 by TMA (ARUP via RPS) |
| STDP | Sexually Transmitted Disease Panel[i] |
| SZDIA | Sezary Diagnostic Flow Cytometry, Blood (MAYO via RPS) |
| SHRIMP | Shrimp IgE (RPS Only) |
| SIKL | Sickle Cell Solubility Test (RPS) |
| SILWB | Silver, Whole blood (ARUP via RPS) |
| SNMT | Sinemet (Carbidopa and Levodopa) (RPS) |
| SINQ | Sinequan (Doxepin) (RPS) |
| SINCU | Sinus Culture (RPS) |
| SIRO | Sirolimus Level (Rapamune), Blood (RPS) |
| SJAB | Sjogren (SSA & SSB) Antibodies (RPS) |
| SLPRPS | SLE Profile[i] |
| SDLDL | Small Dense LDL Cholesterol, Serum (MAYO via RPS) |
| FLCON | Smear Consult, Fluid (RPS) |
| SMIT | Smith (ENA) Ab, IgG |
| SMITRNP | Smith/RNP (ENA) Ab, IgG (ARUP via RPS) |
| ASMM | Smooth Muscle Antibody, IgG w/reflex (RPS) |
| NA | Sodium |
| NAK | Sodium & Potassium |
| UNAB | Sodium Urine, 24 hour |
| UNA | Sodium Urine, Random |
| UNAS | Sodium Urine, Random (RPS) |
| TNA | Sodium Values, 24 Hr Urine |
| SOFE | Sodium, Fecal (RPS) |
| FNAS | Sodium, Other Fluid |
| RNEWSO | Solid Organ Recipient Re-Evaluation (RPS) |
| STPP | Solid Tumor Precision Panel |
| FBMN | Soluble Fibrin Monomer (RPS) |
| SLAAG | Soluble Liver Antigen Ab, IgG |
| STR | Soluble Transferrin Receptor |
| SOMS | Somatostatin (RPS) |
| SOX1 | SOX1 Antibody, IgG by Immunoblot, Serum (ARUP via RPS) |
| SOYBN | Soybean, IgE (RPS) |
| USPG | Specific Gravity, Urine (RPS) |
| SPRMA | Sperm Antibodies, IgA/IgG (RPS to ARUP) |
| SMACNA | Spinal Muscular Atrophy (SMA) Copy Number Analysis (ARUP via RPS) |
| SCAP | Spinocerebellar Ataxia Repeat Expansion Panel (MAYO via RPS) |
| SSPA | Sporothrix Antibody, Serum (MAYO via RPS) |
| SPUCU | Sputum Culture (RPS) |
| SCCS | Squamous Cell Carcinoma, Serum (ARUP via RPS) |
| SSARO | SSA (52kD and 60kD) Antibody (RPS) |
| ANASSB | SSB Antibody (RPS) |
| STACHP | Stachybotrys chartarum/atra Panel (ARUP via RPS) |
| STCULT | Stool Culture to Methodist (RPS) |
| SWBCR | Stool WBC (RPS) |
| STRWBY | Strawberry, IgE (RPS Only) |
| STRSC | Strep Group A Culture (RPS) |
| PNEU14 | Strep pneumo Antibodies, IgG (14 Serotypes)(ARUP via RPS) |
| SPTSN | Strep pneumo Antibodies, IgG (23 Serotypes)(ARUP via RPS) |
| SPAG | Streptococcus pneumoniae Antigen, Urine (RPS) |
| ASOR | Streptolysin O (ASO) Antibody (RPS) |
| SGYG | Strongyloides Antibody IgG, Serum (RPS) |
| YSTRYCS | Strychnine Screen (NMS via RPS) |
| SUBP | Substance P, EIA (ARUP via RPS) |
| SUCR | Sucrose Hemolysis Test |
| SFZ | Sulfamethoxazole, Serum (MAYO via RPS) |
| SULFU | Sulfate, 24 Hr Urine (RPS) |
| FSULF | Sulfatide Autoantibody Test (MAYO via RPS) |
| SHGB | Sulfhemoglobin, Whole Blood |
| KIDN | Supersaturation Profile, Urine (RPS) |
| SYCAMO | Sycamore Tree, IgE (RPS ONLY) |
| SYNCU | Synovial Fluid Culture (RPS) |
| SYNCAN | Synthetic Cannabinoid Metabolites, Qualitative, Urine |
| SYPAB | Syphilis Antibody, Total |
