| PPB | platelet-poor blood; pneumococcal pneumonia and bacteremia; positive pressure breathing |
|---|---|
| RBA | relative binding affinity; rescue breathing apparatus; right basilar artery; right brachial artery; ... |
| SB | Bachelor of Science; Schwartz-Bartter [syndrome]; serum bilirubin; shortness of breath; sick bay; si... |
| SCBA | self-contained breathing apparatus |
| SCUBA | self-contained underwater breathing apparatus |
| Grisolle's sign | <clinical sign> An obsolete sign; in smallpox, the continued presence and palpability of papules when the skin is stretched. (05 Mar 2000) |
|---|---|
| Grocco's sign | <clinical sign> Acute dilation of the heart following a muscular effort, described in Graves' disease; also occurring in various forms of myocardiopathy, extension of the liver dullness several centimeters to the left of the midspinal line in cases of enlargement of that organ. (05 Mar 2000) |
| rigler sign | <radiology> Bowel wall outlined by air on inside and outside, indicates pneumoperitoneum (12 Dec 1998) |
| groove sign | <clinical sign> Large, hard, fixed, and extremely tender lymph nodes in the groin above and below the inguinal ligament, with a groove along the ligament; characteristic of lymphogranuloma venereum. (05 Mar 2000) |
| Ripault's sign | <clinical sign> A sign of death, consisting in a permanent change in the shape of the pupil produced by unilateral pressure on the eyeball. (05 Mar 2000) |
| Metenier's sign | <clinical sign> Easy eversion of the upper eyelid in Ehlers-Danlos syndrome. (05 Mar 2000) |
| Rocher's sign | <clinical sign> In a knee examination, the forward or backward sliding of the tibia indicating laxity or tear of the anterior (forward slide) or posterior (backward slide) cruciate ligaments of the knee. Synonym: drawer test, Rocher's sign. (05 Mar 2000) |
| Pfuhl's sign | <clinical sign> The pressure of pus within a subphrenic abscess rises during inspiration and falls during expiration, the reverse of what happens in the case of a purulent collection above the diaphragm; when the diaphragm is paralysed this distinction is lost. (05 Mar 2000) |
| Gunn's crossing sign | <clinical sign> Retinal arteriovenous crossing with venous compression in hypertensive disease. (05 Mar 2000) |
| Gunn's sign | <clinical sign> Compression of the underlying vein at arteriovenous crossings seen ophthalmoscopically in arteriolar sclerosis, on alternate stimulation with light, the pupil of an eye with optic nerve transmission defect constricts poorly or even dilates when stimulated (a relative afferent pupillary defect). Synonym: Marcus Gunn's sign. (05 Mar 2000) |
| Guyon's sign | <clinical sign> Ballottement of the kidney in cases of nephroptosis, especially when there is also a renal tumour, the hypoglossal nerve lies directly upon the external carotid artery, whereby this vessel may be distinguished from the internal carotid when ligation is necessary. (05 Mar 2000) |
| Romana's sign | <clinical sign> Marked oedema of one or both eyelids, usually a unilateral palpebral oedema, thought to be a sensitization response to the bite of a triatomine bug infected with Trypanosoma cruzi, and a strong suggestion of acute Chagas' disease. (05 Mar 2000) |
| Romberg's sign | <clinical sign> With feet approximated, the patient stands with eyes open and then closed; if closing the eyes increases the unsteadiness, a loss of proprioceptive control is indicated, and the sign is positive. Synonym: Romberg test, Romberg's symptom, rombergism, station test. (05 Mar 2000) |
| Rosenbach's sign | <clinical sign> Loss of the abdominal reflex in cases of acute inflammation of the viscera. (05 Mar 2000) |
| Rossolimo's sign | Flicking the tops of the toes from the plantar surface causes flexion of the toes; a stretch reflex of the flexors of the toes seen in lesions of the pyramidal tracts. See: Starling's reflex. Synonym: plantar muscle reflex, Rossolimo's sign. (05 Mar 2000) |