<Li> Abbreviations for medical organisations and personnel </Li> <Li> Abbreviations for diseases and disorders </Li> <Table> Sortable table <Tr> <Th> Abbreviation </Th> <Th> Meaning </Th> </Tr> <Tr> <Td> </Td> <Td> leukocytes lumbar vertebrae (L1 to L5) </Td> </Tr> <Tr> <Td> L&D </Td> <Td> labor and delivery </Td> </Tr> <Tr> <Td> LA </Td> <Td> left atrium lymphadenopathy local anesthetic </Td> </Tr> <Tr> <Td> LAAM </Td> <Td> L - alpha - acetylmethadol </Td> </Tr> <Tr> <Td> Lab </Td> <Td> laboratory (in health care, usually referring to clinical laboratory) </Td> </Tr> <Tr> <Td> LABA </Td> <Td> long - acting beta agonist </Td> </Tr> <Tr> <Td> LABBB </Td> <Td> left anterior bundle branch block </Td> </Tr> <Tr> <Td> Lac </Td> <Td> laceration lactate </Td> </Tr> <Tr> <Td> LAD </Td> <Td> left anterior descending (a coronary artery) leukocyte adhesion deficiency left axis deviation (see electrocardiogram) lymphadenopathy </Td> </Tr> <Tr> <Td> LAE </Td> <Td> left atrial enlargement </Td> </Tr> <Tr> <Td> LAH </Td> <Td> left anterior hemiblock </Td> </Tr> <Tr> <Td> LAHB </Td> <Td> left anterior hemiblock </Td> </Tr> <Tr> <Td> Lam </Td> <Td> laminectomy </Td> </Tr> <Tr> <Td> LAN </Td> <Td> lymphadenopathy </Td> </Tr> <Tr> <Td> LAP </Td> <Td> leukocyte alkaline phosphatase </Td> </Tr> <Tr> <Td> Lap </Td> <Td> laparotomy </Td> </Tr> <Tr> <Td> Lap appy </Td> <Td> laparoscopic appendectomy </Td> </Tr> <Tr> <Td> LAR </Td> <Td> low anterior resection </Td> </Tr> <Tr> <Td> LARP </Td> <Td> left → anterior, right → posterior (path of the vagi as they wander from thorax to abdomen) </Td> </Tr> <Tr> <Td> LAS </Td> <Td> lymphadenopathy syndrome </Td> </Tr> <Tr> <Td> Lat </Td> <Td> lateral </Td> </Tr> <Tr> <Td> lb LB </Td> <Td> pound or pounds (mass) </Td> </Tr> <Tr> <Td> LBBB </Td> <Td> left bundle branch block </Td> </Tr> <Tr> <Td> LBO </Td> <Td> large bowel obstruction </Td> </Tr> <Tr> <Td> LBP </Td> <Td> low back pain </Td> </Tr> <Tr> <Td> LBW </Td> <Td> low birth weight </Td> </Tr> <Tr> <Td> LCA </Td> <Td> left coronary artery </Td> </Tr> <Tr> <Td> LCHAD </Td> <Td> long - chain 3 - hydroxyacyl - coenzyme A dehydrogenase </Td> </Tr> <Tr> <Td> LCIS </Td> <Td> lobular carcinoma in situ </Td> </Tr> <Tr> <Td> LCM </Td> <Td> lymphocytic meningitis </Td> </Tr> <Tr> <Td> LCMV </Td> <Td> lymphocytic choriomeningitis virus </Td> </Tr> <Tr> <Td> LCP </Td> <Td> Liverpool Care Pathway for the Dying Patient </Td> </Tr> <Tr> <Td> LCPD </Td> <Td> Legg--Calvé--Perthes disease </Td> </Tr> <Tr> <Td> LCV </Td> <Td> leukocytoclastic vasculitis </Td> </Tr> <Tr> <Td> LCX </Td> <Td> left circumflex artery </Td> </Tr> <Tr> <Td> L&D </Td> <Td> labor and delivery </Td> </Tr> <Tr> <Td> LDH </Td> <Td> lactate dehydrogenase </Td> </Tr> <Tr> <Td> LDL </Td> <Td> low - density lipoprotein </Td> </Tr> <Tr> <Td> LDL - C </Td> <Td> low - density lipoprotein cholesterol </Td> </Tr> <Tr> <Td> L - DOPA </Td> <Td> levo - dihydroxyphenylalanine </Td> </Tr> <Tr> <Td> LEC </Td> <Td> lupus erythematosus cell </Td> </Tr> <Tr> <Td> LEEP </Td> <Td> loop electrical excision procedure </Td> </Tr> <Tr> <Td> LES </Td> <Td> lower esophageal sphincter lupus erythematosus systemicus </Td> </Tr> <Tr> <Td> LE </Td> <Td> lupus erythematosus lower extremity (human leg) </Td> </Tr> <Tr> <Td> leu </Td> <Td> leukocytes </Td> </Tr> <Tr> <Td> LFT </Td> <Td> liver function test </Td> </Tr> <Tr> <Td> LGA </Td> <Td> large for gestational age </Td> </Tr> <Tr> <Td> LGL </Td> <Td> Lown--Ganong--Levine syndrome </Td> </Tr> <Tr> <Td> LGM </Td> <Td> lymphogranulomatosis maligna </Td> </Tr> <Tr> <Td> LGSIL </Td> <Td> low - grade squamous intraepithelial lesion </Td> </Tr> <Tr> <Td> LGV </Td> <Td> lymphogranuloma venereum </Td> </Tr> <Tr> <Td> LH </Td> <Td> luteinizing hormone lightheadedness </Td> </Tr> <Tr> <Td> LHC </Td> <Td> left heart catheterization </Td> </Tr> <Tr> <Td> LHRH </Td> <Td> luteinizing hormone--releasing hormone </Td> </Tr> <Tr> <Td> Lig </Td> <Td> ligament </Td> </Tr> <Tr> <Td> LIH </Td> <Td> left inguinal hernia </Td> </Tr> <Tr> <Td> LLD </Td> <Td> leg length discrepancy </Td> </Tr> <Tr> <Td> LLE </Td> <Td> left lower extremity </Td> </Tr> <Tr> <Td> LLETZ </Td> <Td> large loop excision of the transformation zone </Td> </Tr> <Tr> <Td> LLL </Td> <Td> left lower lobe </Td> </Tr> <Tr> <Td> LLQ </Td> <Td> left lower quadrant </Td> </Tr> <Tr> <Td> LM </Td> <Td> left main </Td> </Tr> <Tr> <Td> LMA </Td> <Td> left mentoanterior (fetal position) laryngeal mask airway </Td> </Tr> <Tr> <Td> LMCA </Td> <Td> left main coronary artery </Td> </Tr> <Tr> <Td> LMD </Td> <Td> local medical doctor </Td> </Tr> <Tr> <Td> LMP </Td> <Td> last menstrual period--first day of the menstrual period low malignant potential </Td> </Tr> <Tr> <Td> LMWH </Td> <Td> low - molecular - weight heparin </Td> </Tr> <Tr> <Td> LN </Td> <Td> lymph node Logical Observation Identifiers Names and Codes (LOINC) </Td> </Tr> <Tr> <Td> LND </Td> <Td> lymph node dissection </Td> </Tr> <Tr> <Td> LNG </Td> <Td> levonorgestrel </Td> </Tr> <Tr> <Td> LNI </Td> <Td> lymph node involvement </Td> </Tr> <Tr> <Td> LOA </Td> <Td> left occipitoanterior (fetal position) level of activity lysis of adhesions </Td> </Tr> <Tr> <Td> LOC </Td> <Td> loss of consciousness level of consciousness (e.g., "altered LOC from head trauma") </Td> </Tr> <Tr> <Td> LOF </Td> <Td> leakage of fluid </Td> </Tr> <Tr> <Td> LOH </Td> <Td> loss of heterozygosity </Td> </Tr> <Tr> <Td> LOI </Td> <Td> loss of imprinting </Td> </Tr> <Tr> <Td> LOL </Td> <Td> little old lady (often LOL in NAD--see House of God) </Td> </Tr> <Tr> <Td> LOM </Td> <Td> limitation of motion </Td> </Tr> <Tr> <Td> LOP </Td> <Td> left occiput posterior (fetal position) </Td> </Tr> <Tr> <Td> LORTA </Td> <Td> loss of resistance to air (in anesthesiology; when placing epidural, LORTA indicates entrance of needle to epidural space) </Td> </Tr> <Tr> <Td> LOS </Td> <Td> length of stay </Td> </Tr> <Tr> <Td> Lot </Td> <Td> lotion </Td> </Tr> <Tr> <Td> LOT </Td> <Td> left occiput transverse (fetal position) </Td> </Tr> <Tr> <Td> Lp </Td> <Td> lipoprotein </Td> </Tr> <Tr> <Td> LP </Td> <Td> lumbar puncture </Td> </Tr> <Tr> <Td> LPH </Td> <Td> left posterior hemiblock (see heart block) </Td> </Tr> <Tr> <Td> LPL </Td> <Td> lipoprotein lipase </Td> </Tr> <Tr> <Td> LPP </Td> <Td> lichen planopilaris </Td> </Tr> <Tr> <Td> LQTS </Td> <Td> long QT syndrome </Td> </Tr> <Tr> <Td> L / S </Td> <Td> lecithin - to - sphingomyelin ratio </Td> </Tr> <Tr> <Td> LS </Td> <Td> lichen sclerosus Lynch syndrome </Td> </Tr> <Tr> <Td> LSA </Td> <Td> lichen sclerosis et atrophicus </Td> </Tr> <Tr> <Td> LSB </Td> <Td> left sternal border </Td> </Tr> <Tr> <Td> LSIL </Td> <Td> low - grade squamous intraepithelial lesion </Td> </Tr> <Tr> <Td> LST </Td> <Td> laterally spreading tumor </Td> </Tr> <Tr> <Td> LR </Td> <Td> lactated Ringer's solution </Td> </Tr> <Tr> <Td> LRINEC </Td> <Td> Laboratory Risk Indicator for Necrotizing Soft Tissue Infections Score </Td> </Tr> <Tr> <Td> LRTI </Td> <Td> lower respiratory tract infection </Td> </Tr> <Tr> <Td> LSCTA </Td> <Td> lung sounds clear to auscultation </Td> </Tr> <Tr> <Td> LT </Td> <Td> heat - labile enterotoxin </Td> </Tr> <Tr> <Td> LTAC </Td> <Td> long - term acute care </Td> </Tr> <Tr> <Td> LTCS </Td> <Td> low transverse cesarean section </Td> </Tr> <Tr> <Td> LUL </Td> <Td> left upper lobe (of lung) </Td> </Tr> <Tr> <Td> LUQ </Td> <Td> left upper quadrant (of abdomen) </Td> </Tr> <Tr> <Td> LUS </Td> <Td> lower uterine segment </Td> </Tr> <Tr> <Td> LUTS </Td> <Td> lower urinary tract symptoms </Td> </Tr> <Tr> <Td> LV </Td> <Td> left ventricle </Td> </Tr> <Tr> <Td> LVAD </Td> <Td> left ventricular assist device </Td> </Tr> <Tr> <Td> LVEDP </Td> <Td> left ventricular end diastolic pressure </Td> </Tr> <Tr> <Td> LVEF </Td> <Td> left ventricular ejection fraction </Td> </Tr> <Tr> <Td> LVF </Td> <Td> left ventricular failure </Td> </Tr> <Tr> <Td> LVH </Td> <Td> left ventricular hypertrophy </Td> </Tr> <Tr> <Td> LVOT </Td> <Td> left ventricular outflow tract </Td> </Tr> <Tr> <Td> LVP </Td> <Td> Large volume paracentesis </Td> </Tr> <Tr> <Td> LWBS </Td> <Td> left without being seen </Td> </Tr> <Tr> <Td> Lx of ch </Td> <Td> laxative of choice </Td> </Tr> <Tr> <Td> Ly </Td> <Td> lymphocytes </Td> </Tr> <Tr> <Td> lytes </Td> <Td> electrolytes </Td> </Tr> </Table> <Tr> <Th> Abbreviation </Th> <Th> Meaning </Th> </Tr>

What does la stand for in medical terms