MCHC
mean corpuscular hemoglobin concentration
MCT
medium-change triglyceride
MCV
mean corpuscular voulme
MDR
minimum daily requirement; multidrug resistant
mEq
milliequivalent
Mg
magnesium
mg
milligram
MI
mitral insufficiency; myocardial infarction
mL
milliliter
mM
millimole