DEHP
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  DEHP



DEHP

   A softener for polyvinyl chloride (PVC), a plastic polymer used in a wide array of products. Unplasticized PVC is hard and brittle at room temperature. A plasticizer (softener) is typically added to increase the flexibility of the polymer. DEHP is the plasticizer for most PVC medical devices. Devices that may contain DEHP-plasticized PVC include: intravenous (IV) bags and tubing, umbilical artery catheters, blood bags and infusion tubing, enteral nutrition feeding bags, nasogastric tubes, peritoneal dialysis bags and tubing, tubing used in cardiopulmonary bypass (CPB) procedures, tubing used in extracorporeal membrane oxygenation (ECMO), and tubing used during hemodialysis.

RELATED TERMS
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Flexibility
The quality or state of being able to be bent or creased repeatedly. (From Webster, 3d ed)

DEHP
A softener for polyvinyl chloride (PVC), a plastic polymer used in a wide array of products. Unplasticized PVC is hard and brittle at room temperature. A plasticizer (softener) is typically added to increase the flexibility of the polymer. DEHP is the plasticizer for most PVC medical devices. Devices that may contain DEHP-plasticized PVC include: intravenous (IV) bags and tubing, umbilical artery catheters, blood bags and infusion tubing, enteral nutrition feeding bags, nasogastric tubes, peritoneal dialysis bags and tubing, tubing used in cardiopulmonary bypass (CPB) procedures, tubing used in extracorporeal membrane oxygenation (ECMO), and tubing used during hemodialysis.

Medical
Pertaining to Medicine.

Devices
Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.

Intravenous
Introducing a fluid into the bloodstream through a vein (usually in the patient's forearm).

Artery
A blood vessel that carries blood from the heart to the body.

Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.

Enteral
Pertaining to the small intestine. As in enteral nutrition. Also called enteric.

Peritoneal
Having to do with the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen).

Dialysis
A treatment to remove certain molecules from the blood, particularly in people with kidney failure.

Cardiopulmonary
Having to do with both the heart and lungs.

Bypass
A surgical procedure designed to increase blood flow to an organ or extremity that has narrowing or blockage of the blood supplying artery. Examples include coronary artery bypass surgery, aortic replacement, ABI (aorta-bi-iliac), ABF (aorto-bi-femoral), and femoral-popliteal bypass)

Extracorporeal
Outside the body, in the anatomic sense. As in extracorporeal circulation, extracorporeal dialysis, and extracorporeal shock wave lithotripsy.

Membrane
A flexible layer surrounding a cell, organelle (such as the nucleus), or other bodily structure. The movement of molecules across a membrane is strictly regulated in both directions.

Hemodialysis
A mechanical method of cleaning the blood for people who have kidney disease. See also: Dialysis.



SIMILAR TERMS
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Deformity, cauliflower-ear
Destruction of the underlying cartilage framework of the outer ear (pinnae), usually caused by either infection or trauma, resulting in a thickening of the ear. Classically, blood collects (hematoma) between the ear cartilage and the skin. There is a marked thickening of the entire ear which may be so extensive that the shape of the ear becomes unrecognizable. The ear is said to look like a piece of cauliflower. It is typically seen in wrestlers and boxers who have had repeated trauma to the ear.

Degeneration, macular
A disease that progressively destroys the macula, the central portion of the retina, impairing central vision. Macular degeneration rarely causes blindness because only the center of vision is affected. However, injury to the macula in the center of the retina can impair the ability to see straight ahead clearly and sometimes make it difficult to read, drive, or perform other daily activities that require fine central vision.

Degenerative arthritis
Also known as osteoarthritis, this type of arthritis is caused by inflammation, breakdown and eventual loss of the cartilage of the joints. Among the over 100 different types of arthritis conditions, osteoarthritis is the most common, affecting usually the hands, feet, spine, and large weight-bearing joints, such as the hips and knees. Also called degenerative joint disease.

Deglutition
The act of swallowing, particularly the swallowing of food. The muscles of deglutition are the muscles employed in the act of swallowing.

Dehisce
To burst open or gape. A surgical wound may partially or completely dehisce after surgery, depending upon whether some or all of the layers of tissue come open.

DEHP

Dehydroepiandrosterone
DHEA. A steroid hormone made by the adrenal glands that acts on the body much like testosterone and is converted into testosterone and estrogen. DHEA and its sulfate (DHEAS) are abundant in the body, but their normal roles are not fully understood. The blood levels of DHEA and DHEAS decline with age.

Deinococcus radiodurans
A bacterium that can survives extremely high levels of radiation and therefore has high potential for radioactive waste cleanup. The genome of Deinococcus radiodurans has been sequenced. It is composed of two chromosomes, a megaplasmid, and a small plasmid. The total genome contains 3,284, 156 base pairs. Deinococcus radiodurans is an organism in which all systems for DNA repair, DNA damage export, desiccation and starvation recovery, and genetic redundancy are all present in one cell.

Delay, developmental
Behind schedule in reaching milestones of early childhood development.

Deletion
Loss of a segment of DNA from a chromosome (and hence from the genome).

Delirium tremens
A neurological symptom of alcohol withdrawal seen in chronic alcoholism, with includes symptoms of psychosis. These may include uncontrollable trembling, hallucinations, severe anxiety, sweating, and sudden feelings of terror. Delirium tremens can be both frightening and, in severe cases, deadly. Treatment includes observation, comfort care, and in some cases medication.

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