| RAM | random-access memory; rapid alternating movements; rectus abdominis muscle; rectus abdominis myocuta... |
|---|---|
| OKN | Opto-Kinetic Nystagmus |
| BPPN | benign paroxysmal positioning nystagmus |
| CN | caudate nucleus; cellulose nitrate; charge nurse; child nutrition; chloroacetophenone; clinical nurs... |
| GN | gaze nystagmus; glomerulonephritis; glucose nitrogen [ratio]; gnotobiote; graduate nurse; gram-negat... |
| sodium-responsive periodic paralysis | A form of periodic paralysis in which the serum potassium level is within normal limits during attacks; onset usually occurs between the ages of 2 and 5 years; there is often severe quadriplegia, usually improved by the administration of sodium salts; autosomal dominant inheritance. Synonym: sodium-responsive periodic paralysis. (05 Mar 2000) |
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| normokalaemic periodic paralysis | A form of periodic paralysis in which the serum potassium level is within normal limits during attacks; onset usually occurs between the ages of 2 and 5 years; there is often severe quadriplegia, usually improved by the administration of sodium salts; autosomal dominant inheritance. Synonym: sodium-responsive periodic paralysis. (05 Mar 2000) |
| familial periodic paralysis | <neurology> A rare inherited disorder, affecting men more often than women, characterised by intermittent episodes of muscle weakness or paralysis. One form, known as hypokalaemic periodic paralysis, is an autosomal recessive disorder that is characterised by bouts of muscle weakness (or paralysis) accompanied by low serum potassium levels. Inheritance: autosomal recessive. Incidence: 1 in 100,000. (27 Sep 1997) |
| after-nystagmus | Nystagmus occurring after the abrupt cessation of rotation in the opposite direction of the rotatory nystagmus. (05 Mar 2000) |
| amaurotic nystagmus | The pendular or, rarely, jerky nystagmus seen in severely reduced vision. Synonym: amaurotic nystagmus. (05 Mar 2000) |
| Bruns' nystagmus | A fine, jerking (vestibular) nystagmus on horizontal gaze in one direction, together with a slower, larger amplitude (gaze, paretic) nystagmus on looking in the opposite direction; due to lateral brainstem compression, usually by a cerebellar-pontine angle mass such as an acoustic neuroma. (05 Mar 2000) |
| caloric nystagmus | Jerky nystagmus induced by labyrinthine stimulation with warm or cold water injected into the ear canal. (27 Sep 1997) |
| galvanic nystagmus | Nystagmus involving galvanic stimulation of the labyrinth. (05 Mar 2000) |
| palatal nystagmus | A clonic spasm of the levator palati muscle, causing an audible click. (05 Mar 2000) |
| railroad nystagmus | Nystagmus induced by looking at moving visual stimuli. Synonym: opticokinetic nystagmus, railroad nystagmus. (05 Mar 2000) |
| gaze paretic nystagmus | A nystagmus occurring in partial gaze paralysis when an attempt is made to look in the direction of the gaze paresis. (05 Mar 2000) |
| vertical nystagmus | An up-and-down oscillation of the eyes. (05 Mar 2000) |
| vestibular nystagmus | Nystagmus resulting from physiological stimuli to the labyrinth that may be rotatory, caloric, compressive, or galvanic, or due to labyrinthal lesions. See: Barany's sign. Synonym: labyrinthine nystagmus. (05 Mar 2000) |
| voluntary nystagmus | Pendular nystagmus in which the individual causes an extremely fine and rapid horizontal oscillation of the eyes. The nystagamus consists of back-to-back saccades and is seldom done for more than a few seconds at a time. (05 Mar 2000) |
| pendular nystagmus | A nystagmus that, in most positions of gaze, has oscillations equal in speed and amplitude, usually arising from a visual disturbance. (05 Mar 2000) |