Davis's Lab & Diagnostic Tests
- M:E
- Machine learning
- Macroamylasemia, amylase levels in
- Macrocytic anemia, red blood cell count, indices, morphology, and inclusions in
- Macular drusen
- Magnesium, Blood, and Urine
- Magnetic resonance cholangiopancreatography (MRCP)
- Magnetic Resonance Imaging, Various Sites (Abdomen, Blood Vessels [MRA], Brain, Breast, Chest, Musculoskeletal, Pancreas, Pelvis, Pituitary, Venography)
- Magnetic resonance spectroscopy (MRS)
- Magnetic resonance venography (MRV)
- Magnetoencephalography (MEG)
- Malignant hypertension, renin levels in
- Malignant ocular tumor, gonioscopy
- Mallory-Weiss tears, fecal analysis
- MammaPrint
- Mammary ductoscopy
- Mannitol administration, osmolality, blood and urine in
- Marburg virus
- Markers of glycemic management
- Massive blood transfusion, calcium, blood, total and ionized
- Massive hemolysis, magnesium, blood and urine in
- Mast cells
- Mastitis, mammography of
- Maximal inspiratory-expiratory pressures
- Maximal midexpiratory flow (MMEF)
- Maximal voluntary ventilation (MVV)
- May-Hegglin anomaly, platelet count and tests of platelet function in
- Mean arterial pressure (MAP), cardiac catheterization
- Meat fibers
- Mediastinal tumor, chest x-ray in
- Mediastinoscopy
- Medullary thyroid cancer, calcitonin level in
- Megakaryocytes
- Membranoproliferative glomerulonephritis, cryoglobulin
- Membranous glomerulonephritis, complement, total, C3, and C4
- Meningitis due to C. neoformans, cerebrospinal fluid analysis
- Meningocele, computed tomography (CT)
- Meniscal disease, arthroscopy of
- Mental health illnesses, thyroxine, total and free in
- MEN type II, calcitonin level in
- Mercury poisoning, beta2-microglobulin, blood and urine
- Mesenteric torsion, computed tomography (CT)
- Metabolic acidosis
- Metal (lead) poisoning
- Metanephrines
- MetHb
- Methicillin-resistant Staphylococcus aureus (MRSA), bacterial culture, various sites
- Methylated Septin 9 DNA
- Methylmalonic aciduria, ketones, blood and urine in
- Microcytic anemias, red blood cell count, indices, morphology, and inclusions in
- Microlithiasis, ultrasound of
- Microscopic polyangiitis, antineutrophil cytoplasmic antibody (P-ANCA, C-ANCA) levels in
- Microvolt T wave alternans (MTWA)
- Micturating cystourethrogram (MCUG)
- Micturition disorders, ultrasound of
- Mitral valve endocarditis, antiphospholipid antibodies (aPL): anticardiolipin antibody, IgG, and IgM; anti-beta-2 glycoprotein 1, IgG and IgM; lupus anticoagulant, IgG and IgM levels in
- Mixed connective tissue disease, rheumatoid factor in
- Mixed parotid tumors, sialography for
- Mixed reality (MR)
- Modified (video) barium swallow
- Monocytic leukemia, white blood cell count, blood smear and differential in
- Morphine (drug screen)
- Multidrug resistant organisms (MDROs)
- Multigated acquisition (MUGA) scan
- Multiorgan failure, procalcitonin levels in
- Multiple gestation pregnancy, human chorionic gonadotropin
- Multiple organ failure, calcium, blood, total and ionized
- Muscle biopsy
- Mycobacteria culture
- Mycobacterium avium-intracellulare, cerebrospinal fluid analysis
- Mycobacterium culture and smear
- Mycobacterium spp., gram stains
- Myelin basic protein, cerebrospinal fluid analysis
- Myelocele, computed tomography (CT) of
- Myelocytic leukemia, white blood cell count, blood smear and differential in
- Myelodysplastic syndrome, bone marrow biopsy in
- Myeloid leukemia, bone marrow biopsy in
- Myelomeningocele, ultrasound, biophysical profile (BPP), obstetric
- MYH9-related disorders, platelet count and tests of platelet function in
- Myocardium