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An alphabetical listing of General terms and items.
Dental Assistant (also CDA)
DAC, in accounting, is an acronym for Deferred Acquisition Costs.
Factual information, especially results of an experiment or clinical trial.
A group of experts that evaluates clinical trials for safety and ethics. DSMBs typically examine interim data as a trial progresses and determine whether it should be stopped or allowed to continue.
Doctor of Chiropractic
Diploma in Child Health
Doctor of Ophthalmic Surgery
Diploma in Clinical Pathology or Diploma in Clinical Psychology
Diploma in Diagnostic Radiology
Doctor of Dental Surgery
Doctor of Dental Science
The surgical removal of the excess skin and subcutaneous tissue are removed from a seriously enlarged, stage 3 lymphedema affected limb. Since this procedure does not improve the lymph flow in the affected area, it is no longer commonly performed.
A failure of the liver to compensate for damage or injury; decrease or breakdown of liver function.
Medications used to relieve the stuffy-nose symptoms of IgE-mediated allergies. Decongestants should be used judiciously; overuse exacerbates the problem (see Allergies).
To be in the state of having lost water or fluids from the body or moisture from the skin and mucous membranes.
The time between becoming "at risk" for lymphedema and the onset of symptoms.
A state of mental confusion, typically acute and rapid in onset, that may be caused by factors including disease, drug use, or high fever.
See hepatitis D.
A fungus having brown or black melanotic pigment in the cell wall.
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Chronic loss of mental capacity. Dementia may involve progressive deterioration of thinking, memory, and motor function, and may also be associated with personality changes and psychological symptoms such as depression.
The characteristics of a population (e.g., sex, race, age).
The parts of a neuron that receive signals sent via neurotransmitters from other neurons (see Anxiety).
A flat square of latex or plastic, traditionally used for dental surgery, that can be used to protect against the spread of sexually transmitted diseases during oral sex.
A double-stranded nucleic acid that encodes genetic information. DNA is made up of four chemical building blocks (nucleotides)
Swelling in the arms or legs that occurs in patients with impaired mobility due to causes such as paralysis, multiple sclerosis, Parkinson's disease, or the effects of a stroke.
A mood disorder characterized by prolonged sadness or grief.
An infection of hair, skin and nails caused by the keratinophilic fungi of the genera Trichophyton, Microsporum and Epidermophyton which infect hair, skin and nails.
Infection of hair, skin and nails caused by fungi other than dermatophytes.
Removal of toxic (poisonous) substances. Detoxification of the blood is an important function of the liver.
Involuntary contractions of the detrusor muscle while the bladder is filling, resulting in urgency, frequency, or sometimes incontinence (see Urinary Incontinence).
The layer of involuntary muscle in the bladder wall; during urination, it contracts to squeeze urine out of the bladder into the urethra (see Urinary Incontinence).
DXA (Dual x-ray absorptiometry) is a reference method for determination of bone density, lean and fat mass.
A means of measuring the bone density to detect osteoporosis at a much earlier stage as compared to a standard X-ray. DEXA stands for dualenergy X-ray absorption i.e. X-ray absorption at two different quantum energies or wavelengths.
Diploma from a Faculty of Homeopathy
Doctor of Hygiene
A disorder in which blood glucose (sugar) levels are elevated (see Hypertension).
A disease caused by insufficient insulin production or lack of responsiveness to insulin. Type 1 (insulin-dependent or juvenile-onset) diabetes results from an inability of the body to produce insulin. Type 2 (non-insulin-dependent or adult-onset) diabetes occurs later is life and is associated with decreased insulin production or insulin resistance.
A dangerous condition in which the blood becomes acidic due to a buildup of ketones; it arises during severe insulin deficiency (see Diabetes).
A degenerative eye disorder in which small blood vessels in the retina initially leak and subsequently become blocked. Very fragile new vessels develop, but they ultimately bleed and cause scarring (see Diabetes).
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The identification of a disease.
A method for filtering waste from the blood that replaces the function of the kidneys that are not working properly.
Frequent, loose bowel movements. Diarrhea may be caused by a variety of factors, including microorganisms and as a side effect of certain drugs. Persistent diarrhea can lead to dehydration and inadequate nutrient absorption.
The pressure in the arteries while the heart is refilling with blood between beats; the second and lower of the two numbers obtained when blood pressure is measured (see Cardiovascular Health).
The second (bottom) reading of a blood pressure measurement, which reflects the pressure in the arteries between heartbeats (see Hypertension).
Physical therapy using high-frequency electric current, ultrasound, or microwave to deliver heat to muscles and ligaments (see Arthritis).
A type of branching of hyphae that is repetitious without pattern; the branches are approximately equal in size and equal the stem from which they originated.
A medical professional specializing in dietetics, the study of nutrition and the use of special diets to prevent and treat disease.
The organs (mouth, pharyrnx, esophagus, stomach, small intestine, large intestine, and anus) associated with ingestion and digestion of food.
Having two forms.
Diplomate or Diploma
Diploma in Bacteriology
Diploma in Chemistry
Diploma in Clinical Pathology
Diploma in Microbiology
Diploma in Physiotherapy
Diploma in Social Medicine
In the context of health experience, a disability is a restriction or lack (resulting from an impairment) of ability to perform an activity in the manner or within the range considered normal.
Not having the same serostatus, for example a couple in which one partner is HCV positive and the other is HCV negative.
A synonym for disease.
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Situated furthest from the beginning of a body structure. The foot is the distal end of the leg; the hand is the distal end of the arm.
An agent that increases loss of water from the body through urination.
Finger-shaped pouches protruding off the colon that often develop with age (see Digestive Health).
When diverticula become inflamed (see Digestive Health).
Diplomate in Laboratory Management by the American Society for Clinical Pathology Board of Registry
See diabetes mellitus.
Doctor of Dental Medicine
Doctor of Medical Technology
Doctor of Nursing
See deoxyribonucleic acid.
Dermatology Nurse Certified by the Dermatology Nurses' Association (DNA)
Doctor of Nursing Education
Doctor of Nursing Science
Doctor of Optometry
Director of Nursing
A neurotransmitter that affects movement and influences thought processes, possibly affecting motivation and reward (see Depression).
An abnormal front-to-back curvature of the mid-to-upper spine that can result from compression fractures of vertebrae. Commonly called dowager's hump (see Osteoporosis).
Doctor of Ocular Science
The amount of a drug that is given at one time.
A clinical trial in which different doses of a drug are compared to determine which dosage has the best balance of effectiveness and acceptable side effects.
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One of the three bodily humors (vata, pitta, and kapha,) recognized in Ayurvedic medicine.
A doubled-blinded trial produces more objective and unbiased results because neither the research investigators nor the study participants know who is receiving the investigational drug and who is receiving the placebo
A hump in the upper back (thoracic kyphosis) in an elderly woman with osteoporosis.
Doctor of Pharmacy (also PharmD and PD)
Doctor of Public Health
Doctor of Pharmaceutical Chemistry
Doctor of Public Health Nursing
Doctor of Podiatric Medicine (also DP)
Doctor of Medicine (also MD) NOTE
Doctor of Public Health
A phenomenon that occurs when multiple drugs are taken together or drugs are taken with certain herbs or foods. Drug interactions may enhance or reduce the action of a drug and may increase its side effects.
A device for delivering inhaled medication that works differently from a metered-dose inhaler. With a dry-powder inhaler, an aerosol of medicine is created by the force of inhalation rather than by a chemical propellant (see Asthma).
Doctor of Science
A test in which x-rays limited to two different energies are used to measure bone density and produce an image of the bone; the preferred screening test for osteoporosis (see Menopause, Osteoporosis).
A channel in the breast that carries milk from the lobule to the nipple during lactation (see Breast Cancer).
Inflammation of the duodenum (see Digestive Health).
The first part of the small intestine. An ulcer on its inner lining is called a duodenal ulcer.
Doctor of Veterinary Medicine
Doctor of Veterinary Medicine and Surgery
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Doctor of Veterinary Radiology
Doctor of Veterinary Science
Abbreviation for diagnosis.
An infectious disease of the intestine that causes bloody, mucus-filled diarrhea, which can be accompanied by abdominal pain or cramps, fever, and dehydration from excessive diarrhea. It is caused by enteric infections, usually with Shigella, and can sometimes trigger reactive arthritis.
Lack or loss of normal function.
Difficulty swallowing (see Digestive Health).
Abnormal cell or tissue growth.
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