(253 abbreviations)

L&A, light and accommodation.

L&D, labor and delivery.

L&H, lungs and heart.

L&S, liver and spleen.

L&W, living and well.

L, Lactobacillus.

L, lambda.

L, latex.

L, Latin.

L, left.

L, Legionella.

L, Leishmania.

L, length.

L, lente insulin.

L, lethal.

L, leucine.

L, levo-.

L, lidocaine.

L, ligament.

L, light.

L, lingual.

L, Listeria.

L, liter.

L, liver.

L, low.

L, lower.

L, lumbar.

L, luminance.

L, lymph.

L, lymphatic invasion.

L, lymphocyte.

L, outer membrane layer of cell wall of gram-negative bacteria (layer).

L, pound.

L, syphilis (Latin lues).

L/S, lecithin/shingomyelin ratio.

L1 - L5, Lumbar vertebrae 1 - 5 (spine e.g. L1 = 1st lumbar vertebra).

LA, left atrium.

LA, linoleic acid.

LA, local anesthesia.

Lac, laceration.

LAC, long arm cast.

LAD, left anterior descending (coronary artery).

LAD, left axis deviation.

LAD, leukocyte adhesion deficiency.

LAD, ligament augmentation device.

LAD, linoleic acid-deficient.

LAD, low-alcohol-drinking.

LADD, laparoscopic appendectomy and duodenocolonic dissociation.

LADDs, lifetime average daily doses.

LADDs, liquid automatic dishwashing detergents.

Ladd's, syndrome, intestinal obstruction from peritoneal bands.

LAE, long above elbow (cast).

LAH, left atrial hypertrophy.

LAM, laminectomy.

LAM-1, L-selectin adhesion molecule (on leukocytes).

LANC, long arm navicular cast.

lap chole, laparoscopic cholecystectomy.

LAP, left atrial pressure.

LAP, leukocyte alkaline phosphatase.

lap., laparotomy.

LAR, linoleic acid-rich.

LASIK, laser in-situ keratomileusis.

LAT, lateral (view in x-rays).

lat. flap , latissimus dorsi flap reconstruction.

lat., lateral.

LATS, long-acting thyroid stimulator.

LB, large bowel.

LB, Lewy body.

LB, Lyme borreliosis.

lb., pound.

LBB, low back bending.

LBBB, left bundle branch block.

LBCD, left border of cardiac dullness

LBD, Lewy body dementia.

LBL, lecture-based learning.

LBL, lymphoblastic lymphoma.

LBM, lean body mass.

LBO, large bowel obstruction.

LBO, lower body obesity.

LBP, low back pain.

LBP, low blood pressure.

LBT, low back tenderness.

LC, Langerhans' cells.

LC, lymphocyte corona.

LC50, lethal concentration 50%.

LCA, lateral costal artery (branch of internal mammary artery).

LCA, left coronary artery.

LCA, leukocyte common antigen.

LCDCP, limited/low-contact dynamic compression plate.

LCE, leg cycle ergometer.

LCEA, latency corrected ensemble average.

LCEA, lung carcinoma expressed antigens.

LCH, Langerhans cell histiocytocis.

LCIS, lobular carcinoma in situ (breast carcinoma).

LCL, lateral collateral ligament.

LCM, left costal margin.

LCNEC, large cell neuroendocrine carcinoma.

LCSW, licensed clinical social worker.

LCTA, lungs clear to auscultation.

LD, luminance-defined.

LD100, lethal dose 100 %.

LDF, laser Doppler flowmetry.

LDGS, life-death growth standard.

LDH, lactic dehydrogenase.

LDL cholesterol, low-density lipoprotein cholesterol.

LDL, low density lipoprotein.

LDM, lipoatrophic diabetes mellitus.

LDP, lumbo-dorsal pain.

LDRP, Labor Delivery Recovery Postpartum.

LDW, low-dose warfarin.

LE, left eye.

LE, lower extremity.

LE, lupus erythematosis.

LEE, locus of enterocyte effacement.

LEL, lowest effect level.

LES, lower esophageal sphincter.

LF, left foot; linear fracture; low frequency.

LFA, left forearm.

LFA, lymphocyte function-associated antigen.

LFA-1, lymphocyte function-associated antigen 1.

LFB, Luxol fast blue.

LFLA, antilactoferrin latex bead agglutination test.

LFT, liver function tests.

lg, large.

LGA, large-for-gestational age.

LG-ABN, licking/grooming and arched-back nursing.

LGB, lateral geniculate body.

LGI, (see GI) lower gastro-intestinal tract.

LGV, lymphogranuloma venereum.

LH, luteotropic hormone.

LHG, left hand grip.

LHRH, luteinizing hormone-releasing hormone.

LHS, left hand side.

LIc, lacunar ictus.

LIC, left iliac crest.

LIMA, left internal mammary artery.

LIP, lymphoid interstitial pneumonitis.

LIQ, left inner quadrant.

LIR, left iliac region.

LIS, laboratory information system.

LK, left kidney.

LKS, liver, kidney, spleen.

LL, left lateral.

LL, left leg.

LL, left lower.

LL, left lung.

LLB, left lateral bending; long leg brace.

LLC, long leg cast.

LLCC, long leg cylinder cast.

LLD, leg length discrepancy.

LLE, left lower extremity.

LLF, left lateral flexion; left little finger.

LLL, left lower leg; left lower lid.

LLL, lower left lobe (lung).

LLN, lower limit of normal.

LLQ, lower left quadrant (abdomen).

LLR, left lumbar region.

LLS, long leg splint.

LLWC, long leg walking cast.

LLX, left lower extremity.

LM, lentigo maligna.

LMD, left midline deviation; local medical doctor

LMM, lentigo maligna melanoma.

LMN, lower motor neuron (signs).

LMO, local medical officer.

LMP, last menstrual period.

LMWH, low molecular weight heparin.

LN, lupus nephritis.

LN, lymph node.

LOA, left occipitoanterior.

lob , lobular.

LOC, level of care.

LOC, level of consciousness (in Glasgow Coma Scale).

LOC, loss of consciousness.

LOD, limit of detection.

LOD, loss on drying.

LOH, loss of heterozygosity.

LOM, left otitis media; limitation of movement; loss of movement.

LOQ, left outer quadrant.

LOQ, limit of quantification.

LOS, length of stay.

LOS, lipooligosaccaride (endotoxin virulence factor of N. gonorrhoeae).

LOS, loss of sight.

LOT, left occiput transverse.

LOT, ligament of Treitz.

LP, light perception.

LP, lumbar puncture.

LPA, left pulmonary artery.

lpcAB, lipopolysaccharide (LPS) core AB cluster genes.

lpcC, lipopolysaccharide (LPS) core C gene.

LPCC, liver primary cell cultures.

LPD, luteal phase defect.

lpf, low power field.

LPL, lipoprotein lipase.

LPLK, lichen planus-like keratosis.

LPN, licensed practical nurse.

LPS, lipopolysaccharides.

LQ, lower quadrant.

LQTS, long QT syndrome.

LR, lactated Ringer's solution.

LREC, Local Research Ethics Committee (UK).

LRF, Leukaemia Research Fund (UK).

LRFA, Lymphoma Research Foundation of America.

LRQ, lower right quadrant.

LRT, lower respiratory tract.

LRTI, ligament reconstruction tendon interposition (procedure).

LRTI, lower respiratory tract infection.

LS, left side.

LS, liver and spleen.

LS, lumbar spine.

LS, lumbosacral.

LSA, left sacrum anterior.

LSD, lysergic acid diethylamide.

LSF, lateral spread of freeze (of a cryosurgical iceball).

LSIL, low grade squamous intraepithelial lesion.

LSK, liver, spleen, kidney.

LSMFT, liposclerosing myxofibrous tumor.

LSN, lateral spinal nucleus.

LSP, left sacrum posterior.

LSP, lumbar spine.

LSS,lumbar spinal stenosis.

LT, lunotriquetral.

Lt., left.

LTB₄, leukotriene B4.

LTC, long term care.

LTCF, long term care facility.

ltd., limited.

LTK, laser thermokeratoplasty.

LTR, long terminal repeats.

LTR, lower trunk rotation.

LTRPC, long TRPC.

LUA, left upper arm.

LUE, left upper extremity.

LUL, left upper lobe (lung).

LULA, laparoscopy under local anesthesia.

LUOQ, left upper outer quadrant.

LUP, specimen lipemic, unable to perform.

LUQ, left upper quadrant (abdomen).

LV, left ventricle.

LVAS, left ventricular assist system.

LVEDP, LV end-diastolic pressure.

LVEF, left ventricular ejection fraction.

LVF, left ventricular failure.

LVH, left ventricular hypertrophy.

LVSEM, low-voltage scanning electron microscopy.

LVSF, left ventricular shortening fraction.

LW, Large White (pig).

LX, lower extremity.

LYMP, lymphocyte

LyP, lymphomatoid papulosis.

LYS, life years saved.

Lytes, electrolytes.

LZT, low zone tolerance.