| Test Code | Test Name - (*) found by Test Code | Production Lab | Found by Synonym |
| ACFA | AFB CULTURE WITH AFB STAIN | ARUP | YES |
| ACFP | AFB STAIN WITH CULTURE | NDPHL | YES |
| METHR | AMPHET/METH CONFIRMATION REFLEX | MEDTOX | YES |
| M | ANTIGEN TYPING, M | NPL | YES |
| MNS4 | ANTIGEN TYPING, S (LITTLE) | NPL | YES |
| CANN | CANNABINOID SCREEN | NPL | YES |
| UMC | CULTURE, UREAPLASMA-MYCOPLASMA | ARUP | YES |
| DATA | DIRECT COOMBS, ADULT | NPL | YES |
| OXYCD | DRUGS OF ABUSE CONF, OPIATES(SERUM/PLAS) | ARUP | YES |
| THCC | DRUGS OF ABUSE CONF, THC (CANNABINOIDS) | ARUP | YES |
| HOMO | HOMOCYSTINE, TOTAL | ARUP | YES |
| MG | MAGNESIUM, SERUM | NPL | |
| UMG | MAGNESIUM, URINE | NPL | |
| MAL | MALARIA SMEAR | NPL | |
| MANB | MANGANESE, BLOOD | ARUP | |
| MANS | MANGANESE, SERUM | ARUP | |
| MERB | MERCURY, BLOOD | ARUP | |
| MERU | MERCURY, URINE | ARUP | |
| METNP | METANEPHRINES, PLASMA FREE | ARUP | |
| METAN | METANEPHRINES, URINE | ARUP | |
| MTHGB | METHEMOGLOBIN | RESP | |
| MTXQ | METHOTREXATE | QR | |
| MN | METHSUXIMIDE/NORMETHSUXIMIDE | ARUP | |
| MMA | METHYLMALONIC ACID, SERUM QUANTITATIVE | ARUP | |
| MMAU | METHYLMALONIC ACID, URINE | ARUP | |
| RITU | METHYLPHENIDATE AND METAB QUANT-URINE | ARUP | |
| MEXI | MEXILETINE | ARUP | |
| MIC | MIC, AEROBIC ORGANISM SUSCEPTIBILITY | NPL | |
| MAB | MICROALBUMIN, URINE | NPL | |
| MAB24 | MICROALBUMIN, URINE 24 HR | NPL | |
| TPO | MICROSOMAL ANTIBODY (TPO) | ARUP | |
| MITAB | MITOCHONDRIAL M2 ANTIBODIES, IGG | ARUP | |
| IFES | MONOCLONAL PROTEIN DETECT. QUANT& CHARAC | ARUP | |
| MONO | MONONUCLEOSIS SCREEN | NPL | |
| PNPAN | MOTOR NEUROPATHY PANEL | ARUP | |
| MLDSC | MOULD SUSCEPTIBILITY PANEL | ARUP | |
| BLSAP | MRSA / SA BLOOD CULTURE PCR | NPL | |
| MRSAP | MRSA BY PCR | NPL | |
| MRSA | MRSA CULTURE | NPL | |
| SSTIP | MRSA/MSSA SSTI BY PCR | NPL | |
| MS | MULTIPLE SCLEROSIS PANEL | ARUP | |
| MUMP | MUMPS VIRUS ANTIBODY, IGG | ARUP | |
| MUMPM | MUMPS VIRUS ANTIBODY, IGM | ARUP | |
| MGEAM | MYASTHENIA GRAVIS EVALUATION, ADULT | MAYO | |
| MGEPM | MYASTHENIA GRAVIS EVALUATION, PEDIATRIC | MAYO | |
| MPA | MYCOPHENOLIC ACID (CELLCEPT) | ARUP | |
| MYCOP | MYCOPLASMA PNEUMONIAE ANTIBODIES,IGG/IGM | ARUP | |
| MYCG | MYCOPLASMA PNEUMONIAE ANTIBODY, IGG | ARUP | |
| MYCM | MYCOPLASMA PNEUMONIAE ANTIBODY, IGM | ARUP | |
| MBP | MYELIN BASIC PROTEIN | ARUP | |
| FMDSM | MYELODYSPLASTIC SYNDROME (MDS), FISH | MAYO | |
| MPOM | MYELOPEROXIDASE ABS, IGG | MAYO | |
| MYO | MYOGLOBIN, SERUM | NPL | |
| MYOGL | MYOGLOBIN, URINE | NPL | |
| MYOGU | MYOGLOBIN, URINE | ARUP | |
| PLTM | PLATELET, MANUAL COUNT | NPL | YES |
| PRIM | PRIMIDONE (MYSOLINE)& METABOLITE | ARUP | YES |
| QFTBA | QUANTIFERON-TB GOLD IN TUBE | ARUP | YES |
| MEASG | RUBEOLA (MEASLES) AB, IgG | ARUP | YES |
| MEASL | RUBEOLA (MEASLES) AB, IGG/IGM | ARUP | YES |
| MEASM | RUBEOLA (MEASLES) AB, IGM | ARUP | YES |
| UUREA | UREA NITROGEN, URINE | NPL | YES |
| USM | URINALYSIS, ROUTINE WITH MICROSCOPIC | NPL | YES |
| UM | URINE MICROSCOPIC | NPL | YES |
| DIFFM | WBC DIFFERENTIAL, MANUAL | NPL | YES |