| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
|---|---|
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| PPD | packs per day; paraphenylenediamine; percussion and postural drainage; permanent partial disability;... |
| PRP | physiologic rest position; pityriasis rubra pilaris; platelet-rich plasma; polyribosyl ribitol phosp... |
| PVD | patient very disturbed; peripheral vascular disease; portal vein dilation; posterior vitreous detach... |
| drainage, postural | Therapeutic drainage in bronchopulmonary diseases in which there is copious mucus secretion, such as chronic bronchitis, bronchiectasis, pulmonary abscess, or cystic fibrosis. The patient is placed with head downward, so that the trachea is inclined downward and below the affected area. It may be done in 15- to 20-minute sessions or by having the patient sleep in a head-down position. The therapy may be used in conjunction with forced expiration, bronchodilator agents, or expectorants. (12 Dec 1998) |
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| anamnestic response | <immunology> Archaic term now replaced by such terms as secondary immune response, immune memory. (18 Nov 1997) |
| audiometry, evoked response | A form of electrophysiologic audiometry in which an analog computer is included in the circuit to average out ongoing or spontaneous brain wave activity. A characteristic pattern of response to a sound stimulus may then become evident. Evoked response audiometry is known also as electric response audiometry. (12 Dec 1998) |
| auditory brainstem response audiometry | An electrophysiologic measure of auditory function utilizing responses produced by the auditory nerve and the brainstem to repetitive acoustic stimuli. (05 Mar 2000) |
| biological response modifier | <pharmacology, oncology> A substance used in adjuvant therapy that takes advantage of the bodys own natural defense mechanisms to inhibit the growth of a tumour. (16 Dec 1997) |
| biological response modifiers | Substances that stimulate the body's response to infection and disease. The body naturally produces small amounts of these substances. Scientists can produce some of them in the laboratory in large amounts and use them in cancer treatment. Also called BRMs. (12 Dec 1998) |
| biphasic response | Two separate and distinct responses that are separated in time, immediate reaction to an antigenic challenge followed by a recurrence of symptoms after an interval of quiescence. (05 Mar 2000) |
| booster response | The response of the immune system to the second or subsequent occasion on which it encounters a specific antigen. (18 Nov 1997) |
| brainstem evoked response audiometry | An electrophysiologic measure of auditory function utilizing responses produced by the auditory nerve and the brainstem to repetitive acoustic stimuli. (05 Mar 2000) |
| galvanic skin response | A change in electrical resistance of the skin, occurring in emotion and in certain other conditions. (12 Dec 1998) |
| recruiting response | <neurology> The gradual increase to a maximum in a reflex when a stimulus of unaltered intensity is prolonged. (12 Dec 1998) |
| partial response | <oncology> A decrease of at least 50 percent in the sum of the measurements of all evaluable target lesions or tumours seen in a study. (16 Dec 1997) |
| relaxation response | An integrated hypothalamic reaction resulting in decreased sympathetic nervous system activity which, physiologically and psychologically, is almost a mirror image of the body's response's to Cannon's emergency theory (flight or fight response); can be self-induced through the use of techniques associated with transcendental meditation, yoga, and biofeedback. See: emergency theory. (05 Mar 2000) |
| response | An action or movement due to the application of a stimulus. Origin: L. Respondere = to answer, reply (18 Nov 1997) |
| response generalisation | <biology> The principle that after an organism learns to respond in a particular manner to a stimulus, that stimulus is effective in eliciting similar responses. (12 Dec 1998) |