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KembaraXtra - Medical Terms - aberration
​ Aberration, in optics, refers to a flaw or imperfection in the image produced by an optical device such as a lens. In chromatic aberration, coloured fringes appear around an image because different colours of light are refracted to varying degrees. In spherical aberration, the image becomes blurred because light rays passing through the outer edges of a lens are bent more than those passing through the centre, causing them to focus at slightly different points. This effect can occur even when only one colour of light is used.



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KembaraXtra - Medical Terms - abiraterone acetate
​ Abiraterone acetate is an oral medication used to treat metastatic prostate cancer that is resistant to standard hormonal therapy. It works by reducing testosterone production in the prostate and adrenal glands through inhibition of the enzyme cytochrome P450 17A1, which plays a key role in androgen synthesis. Possible side-effects include fluid retention (oedema), liver abnormalities, high blood pressure, and low potassium levels. Its trade name is Zythiga.



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KembaraXtra - Medical Terms - abiotrophy
​Abiotrophy refers to the gradual degeneration or loss of function of a tissue or organ without a clearly identifiable cause. An example is retinal abiotrophy, in which progressive deterioration of the retina leads to worsening vision. This condition can occur in inherited disorders such as retinitis pigmentosa.



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KembaraXtra - Medical Terms - abfraction
​Abfraction is a dental condition characterized by notching or wear at the neck of a tooth near the gum line. It occurs due to mechanical stress from improper bite alignment, which causes the tooth to flex repeatedly. Over time, this stress leads to separation of the enamel from the underlying dentine.



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KembaraXtra - Medical Terms - abasia
​Abasia is the inability to walk despite no detectable physical cause affecting muscles or nerves. It is often associated with psychological conditions and may occur alongside astasia, the inability to stand steadily.



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KembaraXtra - Medical Terms - abatacept
​ Abatacept is a biological therapy used to manage moderate to severe rheumatoid arthritis. It works by suppressing overactive T-lymphocytes, thereby reducing inflammation, joint pain, and swelling, improving quality of life, and preventing joint damage. It may be given by subcutaneous injection or intravenous infusion, and side-effects, though uncommon, can include infection, allergy, and headache. Its trade name is Orencia.



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KembaraXtra - Medical Terms - abbreviated injury scale
​The Abbreviated Injury Scale (AIS) is a standardized scoring system used to assess the severity of traumatic injuries. It supports rapid triage decisions in emergency settings and is also used in clinical audits to evaluate trauma management outcomes.
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KembaraXtra - Medical Terms - abciximab
​Abciximab is an antiplatelet monoclonal antibody administered intravenously during procedures such as coronary angioplasty to reduce the risk of heart attack by preventing clot formation. Possible side-effects include bleeding, nausea, chest pain, back pain, and headache. Its trade name is ReoPro.



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KembaraXtra - Medical Terms - abdomen
​ The abdomen is the region of the body below the chest (thorax), separated by the diaphragm. It contains organs involved in digestion, such as the stomach, liver, and intestines, as well as organs of excretion including the kidneys and bladder; in females it also houses the ovaries and uterus. Clinically, it is divided into four quadrants: right upper (RUQ), right lower (RLQ), left upper (LUQ), and left lower (LLQ). The term abdominal refers to anything related to this region.



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KembaraXtra - Medical Terms - abductor
​An abductor is any muscle that moves a limb or body part away from the midline of the body or away from another structure. This movement is known as abduction. For example, certain muscles in the shoulder and hip function as abductors to lift the arm or leg outward from the body.



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