iodine

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iodine

 (I) [i´o-dīn]
a chemical element, atomic number 53, atomic weight 126.904. (See Appendix 6.) Iodine is essential in nutrition, being especially prevalent in the colloid of the thyroid gland. It is used in the treatment of hypothyroidism and as a topical antiseptic. Iodine is a frequent cause of poisoning (see iodism). Deficiency of iodine causes goiter. Since iodine salts are opaque to x-rays, they can be combined with other compounds and used as contrast media in diagnostic x-ray examinations of the gallbladder and kidneys.
iodine 123 a radioactive isotope of iodine having a half-life of 13.2 hours and emitting gamma rays and x-rays. It is used in diagnostic imaging and as radiation sources in radiation therapy. Symbol 123I.
iodine 125 a radioisotope of iodine having a half-life of 60.14 days and emitting gamma rays; used as a label in radioimmunoassays and other in vitro tests, and also for thyroid imaging. Symbol 125I.
iodine 131 a radioactive isotope of iodine having a half-life of 8.04 days and emitting beta particles and gamma rays. It is used as a tracer in diagnostic imaging and as a radiation source in radiation therapy. Symbol 131I.
protein-bound iodine a test of thyroid function; see also protein-bound iodine test.
radioactive iodine radioiodine.
iodine solution a transparent, reddish brown liquid, each 100 ml of which contains 1.8 to 2.2 g of iodine and 2.1 to 2.6 g of sodium iodide; a local antiinfective agent.
strong iodine solution Lugol's solution.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

i·o·dine (I),

(ī'ō-dīn, -dēn),
A nonmetallic chemical element, atomic no. 53, atomic wt. 126.90447; used in the manufacture of iodine compounds and as a catalyst, reagent, tracer, constituent of radiographic contrast media, topical antiseptic, antidote for alkaloidal poisons, and in certain stains and solutions; formerly used for prophylaxis of iodine deficiency.
[G. iōdēs, violet-like, fr. ion, a violet, + eidos, form]
Farlex Partner Medical Dictionary © Farlex 2012

iodine

(ī′ə-dīn′, -dĭn, -dēn′)
n.
1. Symbol I A lustrous, purple-black, corrosive, poisonous halogen occurring as a diatomic molecule, I2, that easily sublimes to give a purple gas and is a trace element essential for proper thyroid function. Radioactive isotopes, especially I-131, are used as medical tracers and in thyroid disease diagnosis and therapy. Iodine compounds are used as germicides, antiseptics, and dyes. Atomic number 53; atomic weight 126.9045; melting point 113.7°C; boiling point 184.4°C; density of gas 11.27 grams per liter; specific gravity (solid, at 20°C) 4.93; valence 1, 3, 5, 7. See Periodic Table.
2. An antiseptic preparation containing iodine in solution, used to treat wounds.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

iodum

Homeopathy
A homeopathic remedy used for those with thyroid dysfunction, nonfocused hyperactivity and forgetfulness; it is also used for cardiovascular disease, coughs and laryngitis.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

io·dine

(I) (ī'ŏ-dīn, ī'ŏ-dēn)
A nonmetallic chemical element, atomic no. 53, atomic wt. 126.90447; used as a catalyst, reagent, tracer, constituent of radiographic contrast media, therapy in thyroid disease, antidote for alkaloidal poisons, and component of some stains and solutions.
[G. iōdēs, violet-like, fr. ion, a violet, + eidos, form]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

iodine

A halogen element which, in small quantities, is an essential component of the diet. Iodine is poisonous in excess and is sometimes used in an alcoholic or aqueous potassium iodide solution as an antiseptic. The radioactive isotope, iodine 131, is extensively used for thyroid imaging and thyroid function tests. The drug is on the WHO official list.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

antiseptic 

An agent that kills or prevents the growth of bacteria. This term is generally restricted to agents that are sufficiently non-toxic for superficial application to living tissues. These include the preservatives for eye drops and contact lens solutions. Examples of antiseptics are alcohol, benzalkonium chloride, cetrimide, chlorbutanol, chlorhexidine, hydrogen peroxide, thimerosal (or thiomersalate). Other agents that are too toxic to be applied to living tissues are called disinfectants and are used to sterilize instruments and apparatus. See disinfection; ethylenediamine tetraacetic acid; neutralization; sterilization.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

io·dine

(I) (ī'ō-dīn, ī'ŏ-dēn)
A nonmetallic chemical element, used in manufacture of iodine compounds and as a catalyst, reagent, or tracer among other purposes.
[G. iōdēs, violet-like, fr. ion, a violet, + eidos, form]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Contrast-induced acute kidney injury (CI-AKI) is the acute impairment of renal function following intravascular administration of an iodinated contrast agent, and occurs most frequently following coronary angiography, percutaneous coronary intervention and contrast-enhanced computed tomography, especially among patients at risk of renal injury such as those with advanced age, diabetes or heart failure.
The presence of iodinated contrast agents amplifies DNA radiation damage in computed tomography.
The need for any study requiring iodinated contrast should be evaluated for the risk of contrast-induced AKI (CI-AKI) or contrast-associated AKI.
Patients with severe renal function impairment or actively deteriorating renal function require careful weighing of the risk versus benefit of iodinated contrast media administration (Royal Australian and New Zealand College of Radiologists [RANZCR], 2016).
Heupler Jr., "Systemic anaphylactoid reactions to iodinated contrast media during cardiac catheterization procedures: guidelines for prevention, diagnosis, and treatment.
Positive contrast mammography with iodinated contrast agent (Diatrizoate Meglumine and Diatrizoate Sodium injection 76%) was used as an aid to diagnose udder fibrosis due to chronic mastitis.
(40,41) Comparing the non-iodinated agent with the iodinated.
A real time fluoroscopy swallow study using a non-ionic iodinated contrast agent should be the initial investigation.
Therefore, the aim of this study is to test the clinical applicability of a rapid finger stick analysis to determine renal function prior to iodinated contrast agent administration within several seconds, as opposed to hours required for a classic laboratory determination.
Iodinated contrast media injected intravenously or intra-arterial goes from vascular compartment to the extracellular space and is eliminated through glomerular filtration.
This study was conducted with the aim to determine the incidence of contrast induced nephropathy (CIN) in low risk patients undergoing routine diagnostic imaging like Intravenous Urography (IVU) or Contrast Enhanced Computed Tomography (CECT) examination with intravenous administration of iodinated contrast media and to identify the patient and contrast related factors responsible for CIN.