| LMA | laryngeal mask airway; left mentoanterior [fetal position]; limbic midbrain area; liver cell membran... |
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| LMP | large multifunctional protease; last menstrual period; latent membrane potential; left mentoposterio... |
| LMT | left mentotransverse [fetal position]; leukocyte migration technique |
| LOA | leave of absence; Leber optic atrophy; left occipitoanterior [fetal position] |
| LOL | left occipitolateral [fetal position] |
| Trendelenburg's position | A supine position on the operating table, which is inclined at varying angles so that the pelvis is higher than the head with the knees flexed and legs hanging over the end of the table; used during and after operations in the pelvis or for shock. (05 Mar 2000) |
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| knee-chest position | A prone posture resting on the knees and upper part of the chest, assumed for gynecologic or rectal examination. Synonym: genupectoral position. (05 Mar 2000) |
| knee-elbow position | A prone position resting on the knees and elbows, assumed for gynecologic or rectal examination or operation. Synonym: genucubital position. (05 Mar 2000) |
| flank position | A lateral recumbent position, but with the lower leg flexed, the upper leg extended, and convex extension of the upper side of the body; used for nephrectomy. (05 Mar 2000) |
| lateral recumbent position | A position to facilitate a vaginal examination, the patient lying on the side with the under arm behind the back, the thighs flexed, the upper one more than the lower. Synonym: English position, lateral recumbent position, semiprone position. (05 Mar 2000) |
| Fowler's position | An inclined position obtained by raising the head of the bed about 60 to 90 cm to promote better dependent drainage after an abdominal operation. (05 Mar 2000) |
| leapfrog position | A stooping position, such as that taken by children in playing leapfrog, assumed for rectal examination. (05 Mar 2000) |
| frontoanterior position | A cephalic presentation of the foetus with its forehead directed toward the right (right frontoanterior, RFA) or to the left (left frontoanterior, LFA) of the acetabulum of the mother. (05 Mar 2000) |
| frontoposterior position | A cephalic presentation of the foetus with its forehead directed toward the right (right frontoposterior, RFP) or to the left (left frontoposterior, LFP) sacroiliac articulation of the mother. (05 Mar 2000) |
| frontotransverse position | A cephalic presentation of the foetus with its forehead directed toward the right (right frontotransverse, RFT) or to the left (left frontotransverse, LFT) iliac fossa of the mother. (05 Mar 2000) |
| lithotomy position | A supine position with buttocks at the end of the operating table, the hips and knees being fully flexed with feet strapped in position. Synonym: dorsosacral position. (05 Mar 2000) |