citalopram (sit-al- -pram) n.
an antidepressant drug that acts by prolonging the action of the neurotransmitter serotonin
(5-hydroxytryptamine) in the brain (see SSRI). It is taken by mouth. Trade name: Cipramil .
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citric acid (sit-rik) n.
an organic acid found naturally in citrus fruits. Citric acid is formed in the first stage of the
Krebs cycle. Formula:
CH2(COOH)C(OH)(COOH)-CH2COOH
.
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citric acid cycle n.
see KREBS CYCLE.
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Citrobacter (sit-roh-bak-ter) n.
a genus of Gram-negative anaerobic rod-shaped bacteria widely distributed in nature. The
organisms cause infections of the intestinal and urinary tracts, gall bladder, and the
meninges that are usually secondary, occurring in the elderly, newborn, debilitated, and
immunocompromised.
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citrulline (sit-r -leen) n.
an amino acid produced by the liver as a by-product during the conversion of ammonia to
urea.
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CJD n.
see CREUTZFELDT-JAKOB DISEASE.
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clamp (klamp) n.
a surgical instrument designed to compress a structure, such as a blood vessel or a cut end
of the intestine. See illustration.
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claudication (klaw-di-kay-sh n) n.
limping. intermittent c. a cramping pain in the calf and leg muscles, induced by exercise
and relieved by rest, that is caused by an inadequate supply of blood to the affected
muscles.
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claustrophobia (klaw-str -foh-bi ) n.
a morbid fear of enclosed places. See also PHOBIA.
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clavicle (klav-i-k l) n.
the collar bone: a long slender curved bone, a pair of which form the front part of the
shoulder girdle. Fracture of the clavicle is a common sports injury: the majority of cases
require no treatment other than supporting the weight of the arm in a sling.
—clavicular (kl -vik-yoo-ler) adj.
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clavulanic acid (klav-yoo-lan-ik) n.
a drug that interferes with the enzymes (penicillinases) that inactivate many penicillin-type
antibiotics, such as amoxycillin. Combined with the antibiotic, clavulanic acid can overcome
drug resistance.
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clavus (klay-v s) n.
1 see CORN.
2 a sharp pain in the head, as if a nail were being driven in.
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claw-foot (klaw-fuut) n.
an excessively arched foot, giving an unnaturally high instep. In most cases the cause is
unknown, but the deformity may sometimes be due to an imbalance between the muscles
flexing the toes and the shorter muscles that extend them. Medical name: pes cavus .
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claw-hand (klaw-hand) n.
flexion and contraction of the fingers with extension at the joints between the fingers and
the hand, giving a claw-like appearance. Causes of claw-hand include injuries,
syringomyelia, and leprosy. See also DUPUYTREN'S CONTRACTURE.
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cleavage (kleev-ij) n.
(in embryology) the process of repeated cell division of the fertilized egg to form a ball of
cells that becomes the blastocyst.
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cleft lip (harelip) (kleft) n.
the congenital deformity of a cleft in the upper lip, on one or both sides of the midline. It is
often associated with a cleft palate. Medical name: cheiloschisis .
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cleft palate n.
a fissure in the midline of the palate due to failure of the two sides to fuse in embryonic
development. Only part of the palate may be affected, or the cleft may extend the full
length with bilateral clefts at the front of the maxilla; it may be accompanied by a cleft lip
and disturbance of tooth formation.
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cleid- (cleido-, clid-, clido-) prefix
denoting the clavicle (collar bone).
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cleidocranial dysostosis (kly-doh-kray-ni l dis-os-toh-sis) n.
a congenital defect of bone formation in which the skull bones ossify imperfectly and the
collar bones (clavicles) are absent.
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clemastine (klem- -steen) n.
an antihistamine used for the treatment of symptoms of hay fever, urticaria, and
angioneurotic oedema because of its drying effects. Trade names: Aller-eze , Tavegil .
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climacteric (kly-mak-ter-ik) n.
see MENOPAUSE. male c. declining sexual drive and fertility in men, usually occurring
around or after middle age.
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clindamycin (klin-d -my-sin) n.
an antibiotic administered by mouth to treat serious bacterial infections. Trade name:
Dalacin C.
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clinic (klin-ik) n.
1 an establishment or department of a hospital devoted to the treatment of particular
diseases or the medical care of out-patients.
2 a gathering of instructors, students, and patients, usually in a hospital ward, for the
examination and treatment of the patients.
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clinical audit (klin-i-k l) n.
a process by which doctors, nurses, and other healthcare professionals systematically
review the procedures used for diagnosis, care, and treatment, examining how associated
resources are used and investigating the effects care has on the outcome and quality of life
for the patient.
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clinical medicine n.
the branch of medicine dealing with the study of actual patients and the diagnosis and
treatment of disease at the bedside, as opposed to the study of disease by pathology or
other laboratory work.
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clinodactyly (klin-oh-dak-tili) n.
congenital inward bending of a finger, usually the little finger. Clinodactyly may affect both
hands and may be found in association with other congenital malformations.
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clitoridectomy (klit-er-id-ek-t mi) n.
surgical removal of the clitoris.
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clitoris (klit-er-iss) n.
the female counterpart of the penis, which contains erectile tissue (see CORPUS
(CAVERNOSUM)) but is unconnected with the urethra. It becomes erect under conditions of
sexual stimulation.
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cloaca (kloh-ay-k ) n.
the most posterior part of the embryonic hindgut. It becomes divided into the rectum and
the urinogenital sinus.
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clofibrate (kloh-fy-brayt) n.
a drug that reduces the levels of blood lipids, including cholesterol, and is administered by
mouth to treat atherosclerosis and angina. Trade name: Atromid-S .
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Clomid (kloh-mid) n.
see CLOMIPHENE.
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clomiphene (kloh-mi-feen) n.
a synthetic nonsteroidal compound (see ANTI-ANDROGEN) that induces ovulation and
subsequent menstruation in women who fail to ovulate and stimulates increased ovulation
(see SUPEROVULATION) for in vitro fertilization. Trade name: Clomid .
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clomipramine (kloh-mip-r -meen) n.
a drug administered by mouth or injection to treat various depressive states (see ANTIDEPRESSANT).
Trade name: Anafranil .
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clonazepam (kloh-naz- -pam) n.
a drug with anticonvulsant properties, administered by mouth or injection to treat epilepsy
and other conditions involving seizures. Trade name: Rivotril .
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clone (klohn)
1 n. a group of cells (usually bacteria) descended from a single cell by asexual reproduction
and therefore genetically identical to each other and to the parent cell.
2 an organism derived from a single cell of its parent and therefore genetically identical to
it. gene c. a group of identical genes produced by techniques of genetic engineering.
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3 vb. to form a clone.
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clonic (klon-ik) adj.
of, relating to, or resembling clonus. The term is most commonly used to describe the
rhythmical limb movements seen as part of a convulsive epileptic seizure (see EPILEPSY).
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clonidine (kloh-ni-deen) n.
a drug administered by mouth or injection to treat high blood pressure (hypertension) and
migraine. Trade names: Catapres , Dixarit .
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clonus (kloh-n s) n.
rhythmical contraction of a muscle in response to a suddenly applied and then sustained
stretch stimulus. It is most readily obtained at the ankle and is usually a sign of disease in
the brain or spinal cord.
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clopamide (kloh-p -myd) n.
a diuretic administered by mouth to treat fluid retention (oedema) and high blood pressure
(hypertension). Trade name: Viskaldix .
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Clostridium (klo-strid-i m) n.
a genus of mostly Gram-positive anaerobic spore-forming rodlike bacteria commonly found
in soil and in the intestinal tract of man and animals. C. botulinum a species that grows
freely in badly preserved canned foods, producing a toxin causing serious food poisoning
(see BOTULISM). C. tetani a species that causes tetanus on contamination of wounds. C.
perfringens (Welch's bacillus ) a species that causes blood poisoning, food poisoning, and
gas gangrene.
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clotrimazole (kloh-trim- -zohl) n.
an antifungal drug used to treat all types of fungal skin infections (including ringworm) and
vaginal infections. It is applied to the infected part as a cream or solution or as vaginal
pessaries. Trade name: Canesten .
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clotting factors (klot-ing) pl. n.
see COAGULATION FACTORS.
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clotting time n.
see COAGULATION TIME.
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cloxacillin sodium (kloks- -sil-in) n.
an antibiotic, derived from penicillin, administered by mouth or injection to treat many
bacterial infections. Trade name: Orbenin .
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clozapine (kloz- -peen) n.
an atypical antipsychotic drug used in the treatment of schizophrenia and other disorders
resistant to conventional antipsychotics. Administered by mouth, it is notable for the
absence of tremors and repetitive movements that are associated with other antipsychotic
drugs. In a few cases it may depress levels of white blood cells. Trade name: Clozaril .
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clubbing (klub-ing) n.
thickening of the tissues at the bases of the finger and toe nails so that the normal angle
between the nail and the digit is filled in. In extreme cases the digit end becomes bulbous
like a club or drumstick. Clubbing is seen in some diseases of the heart and respiratory
system and as a harmless congenital abnormality.
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club-foot (klub-fuut) n.
see TALIPES.
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clumping (klump-ing) n.
see AGGLUTINATION.
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cluttering (klut-er-ing) n.
an erratic unrhythmical way of speaking in rapid jerky bursts. It can make speech hard to
understand, and speech therapy is usually helpful. Unlike stammering, there are no
repetitions or prolonged hesitations of speech.
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Clutton's joint (klu-t'nz) n.
a swollen joint in a child, usually the knee, caused by inflammation of the synovial
membranes due to congenital syphilis. [H. H. Clutton (1850–1909), British surgeon]
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CMF n.
cyclophosphamide, methotrexate, 5-fluorouracil: the combination used in standard
chemotherapy for cancer.
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CMV n.
see CYTOMEGALOVIRUS.
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CNS n.
see CENTRAL NERVOUS SYSTEM.
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coagulant (koh-ag-yoo-l nt) n.
any substance capable of converting blood from a liquid to a solid state. See BLOOD
COAGULATION.
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coagulase (koh-ag-yoo-layz) n.
an enzyme, formed by disease-producing varieties of certain bacteria of the genus
Staphylococcus, that causes blood plasma to coagulate. Staphylococci that are positive
when tested for coagulase production are classified as belonging to the species
Staphylococcus aureus.
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coagulation (koh-ag-yoo-lay-sh n) n.
the process by which a colloidal liquid changes to a jelly-like mass. See BLOOD
COAGULATION.
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coagulation factors (clotting factors) pl. n.
a group of substances present in blood plasma that are responsible for the conversion of
blood from a liquid to a solid state (see BLOOD COAGULATION).
Although they have specific names, most coagulation factors a re referred to by an agreed
set of Roman numerals (see FACTOR VIII, FACTOR IX, FACTOR XI).
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coagulation time (clotting time) n.
the time taken for blood or blood plasma to coagulate (see BLOOD COAGULATION).
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coagulum (koh-ag-yoo-l m) n.
a mass of coagulated matter, such as that formed when blood clots.
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coalesce (koh- -less) vb.
to grow together or unite.
—coalescence n.
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coal-worker's pneumoconiosis (anthracosis) (kohl-wer-kerz) n.
a lung disease caused by coal dust. It affects mainly coal miners but also other exposed
workers, such as lightermen, if the lungs' capacity to accommodate and remove the
particles is exceeded. See PNEUMOCONIOSIS.
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coarctation (koh-ark-tay-sh n) n.
(of the aorta) a congenital narrowing of a short segment of the aorta, resulting in high
blood pressure in the upper part of the body and arms and low blood pressure in the legs.
The defect is corrected surgically.
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Coats' disease (kohts) n.
a congenital anomaly of the blood vessels of the retina, which are abnormally dilated and
leaking. This results in subretinal haemorrhage and massive exudation. [G. Coats (1876–
1915), British ophthalmologist]
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cobalt (koh-bawlt) n.
a metallic element that forms part of the vitamin B12 molecule. Symbol: Co. cobalt-60
(radiocobalt ) a powerful emitter of gamma radiation, used in the radiation treatment of
cancer (see RADIOTHERAPY, TELECURIETHERAPY).
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cocaine (k -kayn) n.
an alkaloid, derived from the leaves of the coca plant (Erythroxylon coca) or prepared
synthetically, sometimes used as a local anaesthetic in eye, ear, nose, and throat surgery.
Since it may lead to psychological dependence, cocaine has largely been replaced by safer
anaesthetics.
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cocainism (koh-kayn-izm) n.
1 the habitual use of, or addiction to, cocaine in order to experience its intoxicating effects.
2 the mental and physical deterioration resulting from addiction to cocaine.
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coccus (kok- s) n. (pl. cocci)
any spherical bacterium. See GONOCOCCUS, MENINGOCOCCUS, MICROCOCCUS,
PNEUMOCOCCUS, STAPHYLOCOCCUS, STREPTOCOCCUS.
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coccy- (coccyg-, coccygo-) prefix
denoting the coccyx.
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coccygodynia (coccydynia) (kok-si-goh-din-i ) n.
pain in the coccyx and the neighbouring area.
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coccyx (kok-siks) n. (pl. coccyges or coccyxes)
the lowermost element of the backbone: the vestigial human tail. It consists of four
rudimentary coccygeal vertebrae fused to form a triangular bone that articulates with the
sacrum. See also VERTEBRA.
—coccygeal (kok-sij-i l) adj.
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cochlea (kok-li ) n.
the spiral organ of the labyrinth of the ear, which is concerned with the reception and
analysis of sound.
—cochlear (kok-li- er) adj.
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cochlear duct (scala media) n.
see SCALA.
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cochlear implant n.
a device to improve the hearing of profoundly deaf people who derive no benefit from
conventional hearing aids. It consists of an electrode that is permanently implanted into
the inner ear (cochlea). An external battery-powered device with a microphone and an
electronic processing unit passes information to the electrode using radio-frequency waves.
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cochlear nerve n.
the nerve connecting the cochlea to the brain and therefore responsible for the nerve
impulses relating to hearing. It forms part of the vestibulocochlear nerve.
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Cockayne's syndrome (kok-aynz) n.
a hereditary disorder (inherited as an autosomal recessive condition) associated with
trisomy of chromosome no. 20. Clinical features include epidermolysis bullosa, dwarfism,
mental retardation, and pigmentary degeneration of the retina. [E. A. Cockayne (1880–
1956), British physician]
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codeine (koh-deen) n.
an analgesic derived from morphine but less potent as a pain killer and sedative and less
toxic. It is administered by mouth or injection to relieve pain and also to suppress coughs.
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Code of Professional Conduct for the Nurse, Midwife, and Health Visitor
Each registered nurse, midwife and health visitor shall act, at all times, in such a manner
as to:
• safeguard and promote the interests of individual patients and clients;
• serve the interests of society;
•justify public trust and confide nce and
• uphold and enhance the good standin g and reputation of the professions.
As a registered nurse, midwife or health visitor, you are personally accountable for your
practice and, in the excercise of your professional accountability, must:
1 act always in such a manner as to promote and safeguard the interests and wellbeing
of patients and clients;
2 ensure that no action or om ission on your part, or within your sphere of responsibility,
is detrimental to the interests, condition or safety of patients and clients;
3 maintain and improve your professional knowledge and competence;
4 acknowledge any limitations in your knowledge and competence and decline any
duties or responsibilities unless able to perform them in a safe and skilled manner;
5 work in an open and co-operative manner with patients, clients and their fam ilies,
foster their independence and recognise and respect their involvement in the planning
and delivery of care;
6 work in a collabora tive and co-operative manner with health care professionals and
others involved in providing care, and recognise and respect their particular
contributions within the care team;
7 recognise and respect the uniqu eness and dignity of each patient and client, and
respond to their need for care, irrespective of their ethnic origin, religious beliefs,
Content preview
,EN Oxford University Press Oxford University Press
, A Dictionary of Nursing
© Oxford University Press 2000, 2003
Published by Oxford University Press, Great Clarendon Street, Oxford OX2 6DP
Oxford is a registered trade mark of Oxford University Press
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form
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