| MCI | mean cardiac index; methicillin; mucociliary insufficiency; muscle contraction interference |
|---|---|
| MCi | megacurie |
| mCi | millicurie |
| MCi-hr | millicurie-hour |
| MCICU | medical coronary intensive care unit |
| MCID | minimum clinically important difference |
| MCINS | minimal change idiopathic nephrotic syndrome |