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A state of great joy, delight, or ecstasy.

Rapunzel syndrome

(ră-pŭn′zĕl) [Rapunzel, a long-haired girl in a fairy tale by the Brothers Grimm] The extension of a hairball into the small intestine, causing obstruction of the small or large bowel.


(răr″ĕ-făk′shŭn) [L. rarefacere, to make thin] The process of decreasing in density and weight.

r. of bone Osteoporosis.


(rār′ĕ-fī) To make less dense; to increase the porosity of something.


reticular activating system.


(ra-sa-yan′a) [Sanskrit rasa, juice, essence + yana, path] In Ayurvedic medicine, rejuvenation of the body or replenishment of energy levels. It is one of the eight fundamental forms of treatment.


(rash) [Fr. rasche, skin eruption] A general term for any eruption that appears on the skin transiently (as opposed to durable skin lesions such as scars, tattoos, or moles). SYN: exanthem.

PATIENT CARE: Assessments are made of the location and characteristics of the lesion: color; size (height and diameter); pattern, whether discrete or coalesced; and any secondary changes (crusting, scaling, lichenification). Associated symptoms such as pruritus or discomfort, temporal elements, history of known allergies, drugs used, and contacts with communicable diseases during prior 2-week period also are assessed. Suspected drugs are discontinued, and the potential communicable disease patient is isolated and assessed. Cool compresses are applied to relieve itching. Topical preparations and dressings are applied and systemic medications administered as prescribed. The patient is instructed to keep hands clean and nails short and even, and to avoid scratching. The patient also is taught about the treatment regimen, its actions, and its side effects and evaluates for desired effects and side effects.

butterfly r. A rash on both cheeks joined by an extension across the bridge of the nose. It is seen in systemic lupus erythematosus, esp. after the patient’s face has been exposed to sunlight, and in seborrheic dermatitis, tuberous sclerosis, and dermatomyositis. SEE: discoid lupus erythematosus.

diaper r. Irritant contact dermatitis as a reaction to friction, maceration, and prolonged contact with urine, feces, soap retained in diapers, and topical preparations. A persistent diaper rash may be colonized by yeast or bacteria. SYN: diaper dermatitis.

 TREATMENT: Treatment is symptomatic. Diapers should be changed frequently. If washable cloth diapers are used, they should be thoroughly washed and rinsed; occlusive plastic pants should not be used over diapers; the perianal and genital areas should be washed with warm water and mild, non-perfumed soap. If these measures and the application of a bland protective agent (such as zinc oxide paste) do not promote healing, ...

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