Browse Medical Abbreviations

L
L left; length; liter (0.264172 US gallon); lung
L Cx left circumflex
L&A light and accommodation
L&B laryngoscopy and bronchoscopy
L&D labor and delivery
L&W living and well
L-1 first lumbar vertebra
L-2 second lumbar vertebra
L-3 third lumbar vertebra
L-4 fourth lumbar vertebra
L-5 fifth lumbar vertebra
L-dopa Levodopa
L-R left to right
L.M.P. last menstrual period
L/Min L/m liters per minute
L/R left to right
L/S ratio lecithin to sphingomyelin ratio
La La antigen; lactic acidosis; Lanthanum (element)
LA left arm; left atrium; local anesthesia; long-acting (medicine); lactic acid
LAA left atrial appendage
lab laboratory
LABA long-acting beta agonist
LAC left antecubital; lupus anticoagulant
lact lactating
LAD left anterior descending; left axis deviation
LADD diagonal branch of the left anterior
LAE left atrial enlargement
LAFa left anterior forearm
LAFB left anterior fascicular block
LAIV live attenuated influenza vaccine
LAM lactation amenorrhea method
LAO left anterior oblique
LAP leukocyte alkaline phosphatase
lap laparoscop(y/ic)
LASER light amplification by stimulated emission of radiation
LASIK laser assisted in situ keratomileusis
LAT left anterolateral thigh
lat. lateral
LATS long-acting thyroid stimulator
LAVH laparoscopic assisted vaginal hysterectomy
lax laxative; loose
lb pound
LB lower body; live birth
LBBB left bundle branch block
LBP low back pain
lbs pounds
LBW low birth weight
LC-MS liquid chromatography mass spectrometry
LCA left coronary artery
LCAD long-chain acyl-CoA dehydrogenase deficiency
LCD liquor carbonis detergens
LCF left cubital fossa
LCL lateral collateral ligament
LCM left costal margin
LCPD Legg-Calve-Perthes disease
LCX left circumflex
LD lethal dose; left deltoid; learning disability
LD50 lethal dose where 50% of the animal population die
LDH lactic dehydrogenase
LDH, LD lactic dehydrogenase
LDL low-density lipoprotein
LDR labor, delivery, recovery
LDRP labor/delivery/recovery/postpartum room
LDUH low-dose-unfractionated heparin
LE lupus erythematosus; lower extremity; left eye
LEEP loop electrosurgical excision procedure
LEP laparoscopic extraperitoneal approach; limited English proficiency
LES lower esophageal sphincter
LET lidocaine, epinephrine, tetracaine
LETZ loop electrosurgical excision procedure
LFA left forearm
LFD low fat diet
LFT liver function test
LFTS liver function test series
LG left gluteal/gluteus
lg large
LGA large for gestational age
LGI lower gastrointestinal
LGM left upper outer gluteus maximus
LGSIL low-grade squamous, intra-epithelial lesion
LGV lymphogranuloma venereum
LH left hand; luteinizing hormone
LHRH luteinizing hormone-releasing hormone
LHS long handled sponge
Li Lithium (element)
LIFA left inner forearm
lig ligament
LIH left inguinal herniorrhaphy
LIMA left internal mammary artery
liq fluid; liquid
LIQ lower inner quadrant
LITT laser-induced interstitial thermotherapy
LKS liver, kidney, and spleen
LLB long leg brace
LLC long leg cast
LLE left lower extremity
LLL left lower (lung) lobe
LLQ left lower quadrant (abdomen)
LLSB left lower sternal border
LMA laryngeal mask airway
LMCA left main coronary artery
LMD local medical doctor
LML left mediolateral
LMO living modified organism
lmp last menstrual period
LN lymph node
LNG IUD Levonorgestrel IUD
LNMP last normal menstrual period
LOA left occiput anterior; leave of absence
LOB loss of balance
LOC level of consciousness; loss of consciousness
LoChol low cholesterol
LOF loss of function
LOFA left outer forearm
LOM loss/limitation of motion
LOMSA left otitis media, suppurative, acute
LOMSCH left otitis media, suppurative, chronic
LOOP loop electrosurgical excision procedure
LOP left occiput posterior
LOQ lower outer quadrant
LOR loss of resistance
LOS length of stay
LOT left occiput transverse
LP lumbar puncture
LPcP light perception with projection
LPD luteal phase defect
LPFB left posterior fascicular block
LPM liters per minute (oxygen)
LPN licensed practical nurse
LPO left posterior oblique
LPT licensed physical therapist
LQR/LSR locked quiet room/locked seclusion room
LR lactated ringer (solution)
LRNE low risk nutrition education
LRSB lower right sternal border
LS lumbosacral
LS ratio lecithin-sphingomyelin ratio
LSB left sternal border
LSC left subclavian
LSD lysergic acid diethylamide (sl: acid)
LSIL low-grade squamous epithelial lesion
LSO left salpingo-oophorectomy
LT leukotriene; left tilt
Lt left
LTB laryngotracheo bronchitis
LTC long-term care (facility); long-term condition; low transverse cervical (c/s)
LTCF long-term care facility
LTD lowest tolerated dose
LTE less than effective; life-threatening event
LTG long-term goals
LTL laparoscopic tubal ligation
LTR laryngotracheal reconstruction
LTV long-term variability
ltx latex
Lu Lutetium (element)
LUA left upper arm
LUD left uterine displacement
LUE left upper extremity
LUL left upper (lung) lobe
LUQ left upper quadrant
LUT left upper thigh
LV left ventricle; live vaccine
LVA left ventricular aneurysm
LVAD left ventricular assist device
LVEF left ventricular ejection fraction
LVF left ventricular function
LVG left ventriculogram
LVH left ventricular hypertrophy
LVL left vastus lateralis
lvl level
LVN licensed vocational nurse
LWOT left without treatment
LWS low wall suction
LXT exotropia (left)
lymphs lymphocytes
lytes electrolytes