| Hl | hypermetropia, latent |
|---|---|
| lat | latent; lateral |
| LCM | latent cardiomyopathy; left costal margin; leukocyte-conditioned medium; lowest common multiple; lym... |
| LIBC | latent iron-binding capacity |
| LMP | large multifunctional protease; last menstrual period; latent membrane potential; left mentoposterio... |
| nuclear pacemaker | A nuclear-powered unit used to generate the electrical current for artificially pacing the heart; replaced by units using long-life nickel-cadmium and other power sources. (05 Mar 2000) |
|---|---|
| demand pacemaker | A form of artificial pacemaker usually implanted into cardiac tissue because its output of electrical stimuli can be inhibited by endogenous cardiac electrical activity. (05 Mar 2000) |
| diaphragmatic pacemaker | A device that paces the diaphragm, used in patients with chronic ventilatory insufficiency resulting from malfunction of the respiratory control centre on certain types of phrenic nerve malfunction. (05 Mar 2000) |
| ectopic pacemaker | Any pacemaker other than the sinus node. (05 Mar 2000) |
| electric cardiac pacemaker | An electric device that can substitute for the normal cardiac pacemaker, controlling the heart's rhythm by artificial electric discharges. Synonym: electronic pacemaker. (05 Mar 2000) |
| electronic pacemaker | An electric device that can substitute for the normal cardiac pacemaker, controlling the heart's rhythm by artificial electric discharges. Synonym: electronic pacemaker. (05 Mar 2000) |
| electronic pacemaker load | The impedance to the output, the standard load being 500 ohms resistance ± 1%. (05 Mar 2000) |
| transthoracic pacemaker | Artificial pacemaker delivering stimuli through the chest wall usually applied as a temporizing measure in patients with atrioventricular block. (05 Mar 2000) |
| external pacemaker | An artificial cardiac pacemaker whose electrodes for delivering rhythmical electrical stimuli to the heart are placed on the chest wall. (05 Mar 2000) |
| fixed-rate pacemaker | An artificial pacemaker that emits electrical stimuli at a constant frequency. (05 Mar 2000) |
| early latent syphilis | Infection with Treponema pallidum, the organism of syphilis, after the primary and secondary phases have subsided, during the first year after infection, before any manifestations of tertiary syphilis have appeared. (05 Mar 2000) |
| late latent syphilis | Usually infectious in pregnant women only, who may pass the infection on to the foetus. (05 Mar 2000) |
| latent | Dormant. A state that some cancer cells might assume. (Opp: growing or active). (16 Dec 1997) |
| latent adrenocortical insufficiency | Adrenocortical insufficiency not clinically evident but which can become severe if a sudden stress, such as an intercurrent acute illness, develops. (05 Mar 2000) |
| latent allergy | Allergy that causes no signs or symptoms but can be revealed by means of certain immunologic tests with specific allergens. (05 Mar 2000) |