| L |
left |
| LAD |
left axis deviation or left anterior descending |
| LAE |
left
atrial enlargement |
| LAHB |
left
anterior hemiblock |
| LAP |
left atrial pressure or leukocyte alkaline phosphatase |
| LBBB |
left
bundle branch block |
| LDH |
lactate dehydrogenase |
| LE |
lupus
erythematosus |
| LIH |
left
inguinal hernia |
| LLL |
left
lower lobe |
| LMP |
last
menstrual period |
| LNMP |
last
normal menstrual period |
| LOC |
loss of consciousness or level of consciousness |
| LP |
lumbar puncture |
| LPN |
licensed practical nurse |
| LUL |
left
upper quadrant |
| LV |
left
ventricle |
| LVEDP |
left ventricular end diastolic pressure |
| LVH |
left
ventricular hypertrophy |
| MAO |
monoamine oxidase |
| MAP |
mean
arterial pressure |
| MAST |
medical antishock trousers |
| MBT |
maternal blood type |
| MCH |
mean
cell hemoglobin |
| MCHC |
mean
cell hemoglobin concentration |
| MCV |
mean
cell volume |
| MI |
myocardial infarction or mitral insufficiency |
| mL |
milliliter |
| MLE |
midline episiotomy |
| MMEF |
maximal mid expiratory flow |
| mmol |
millimole |
| MMR |
measles, mumps, rubella |
| MRI |
magnetic resonance imaging |
| MRSA |
methicillin resistant staph aureus |
| MS |
multiple sclerosis or mitral stenosis, or morphine sulfate |
| MSSA |
methicillin-sensitive staph aureus |
| MVA |
motor
vehicle accident |
| MVI |
multivitamin injection |
| MVV |
maximum voluntary ventilation |
| NAD |
no
active disease |
| NAS |
no
added salt |
| NCV |
nerve
conduction velocity |
| NED |
no evidence of recurrent disease |
| ng |
nanogram |
| NG |
nasogastric |
| NIDDM |
non-insulin dependent diabetes mellitus |
| NKA |
no
known allergies |
| NKDA |
no
known drug allergies |
| NMR |
nuclear magnetic resonance |
| NPO |
nothing by mouth |
| NRM |
no regular medications |
| NSAID |
non-steroidal anti- inflammatory drugs |
| NSR |
normal sinus rhythm |
| NT |
nasotracheal |
