|
 |
||
 |
| This glossary contains: 19186 medical terms |
 |
Dose, absorbed
|
|
Dose, absorbedIn radiology, the absorbed dose is the amount of energy that is deposited in any material by ionizing radiation. The unit of absorbed dose, the rad, is a measure of energy absorbed per gram of material. An alternative unit of absorbed dose is the gray. One gray equals 100 rads.
RELATED TERMS--------------------------------------
Radiology
The branch of medicine that deals with the use of x-rays.
Rad
Radiation absorbed dose. A unit of measurement of the absorbed dose of ionizing radiation.
Gram
A unit of weight in the metric system. There are 28 grams in 1 ounce. In some diet plans for people with diabetes, the suggested amounts of food are given in grams.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
Donor, universal
A person who is type O in the ABO blood group system and can donate blood to all recipients.
Dopa
A precursor (forerunner) of dopamine, a key neurotransmitter (messenger) in the brain. Dopa is used in the treatment of Parkinson disease. Parkinson disease is believed to be related to low levels of dopamine in certain parts of the brain. When dopa is taken by mouth, it crosses through the blood-brain barrier. Once it has crossed from the bloodstream into the brain, it is converted to dopamine. The resulting increase in dopamine concentrations in the brain is thought to improve nerve conduction and to assist in lessening the movement disorders in Parkinson disease.
Dopa-responsive dystonia (DRD)
A condition that typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, spasticity and can be successfully treated with drugs. Segawa dystonia is an important variant of DRD. In Segawa dystonia, the symptoms fluctuate during the day from relative mobility in the morning to increasing disability in the afternoon and evening and after exercise. DRD may not only be rare but also rarely diagnosed since it mimics some forms of cerebral palsy.
Dorian Gray effect
Sudden aging, an abrupt change from seeming youthfulness to the reality and ravages of age, as can occur naturally or when the effects of plastic surgery and Botox treatments wear off.
Dorsum
The back or posterior side of a structure. "Dorsum" is the Latin word for the back. Something pertaining to the dorsum is dorsal. The dorsal surface of the hand is the back of the hand, the side opposite the palm. The dorsal surface of the foot is the back of the foot, the side opposite the sole. The dorsal vertebrae are the thoracic vertebrae; they form part of the back. The dorsal roots of the spinal nerves are the back roots, the posterior roots.
Dose, absorbed
Double contrast barium enema
A series of x-rays of the colon and rectum taken after the patient is given an enema, followed by an injection of air. The barium outlines the intestines on the x-rays, allowing many abnormal growths to be visible
Double helix
The structure of DNA with the two strands of DNA spiraling about one other. The double helix looks something like an immensely long ladder twisted into a helix, or coil. The sides of the "ladder" are formed by a backbone of sugar and phosphate molecules, and the "rungs" consist of nucleotide bases joined weakly in the middle by hydrogen bonds.
Double pneumonia
Inflammation of both lungs. Medically called bilateral pneumonia.
Double-blind
Term used to described a study in which both the investigator or the participant are blind to (unaware of) the nature of the treatment the participant is receiving. Double-blind trials are thought to produce objective results, since the expectations of the researcher and the participant about the experimental treatment such as a drug do not affect the outcome. Also called double-masked.
Double-blinded study
A study in which at least two separate groups receive the experimental medication or procedure at different times, with neither group being made aware of when the experimental treatment or procedure has been given. Double-blinded studies are often chosen when a treatment shows particular promise and the illness involved is serious. It can be hard to recruit human subjects for a blinded study of a promising treatment when one group will receive only a placebo or an existing medicine.
RELATED TERMS--------------------------------------
Radiology
The branch of medicine that deals with the use of x-rays.
Rad
Radiation absorbed dose. A unit of measurement of the absorbed dose of ionizing radiation.
Gram
A unit of weight in the metric system. There are 28 grams in 1 ounce. In some diet plans for people with diabetes, the suggested amounts of food are given in grams.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
Donor, universal
A person who is type O in the ABO blood group system and can donate blood to all recipients.
Dopa
A precursor (forerunner) of dopamine, a key neurotransmitter (messenger) in the brain. Dopa is used in the treatment of Parkinson disease. Parkinson disease is believed to be related to low levels of dopamine in certain parts of the brain. When dopa is taken by mouth, it crosses through the blood-brain barrier. Once it has crossed from the bloodstream into the brain, it is converted to dopamine. The resulting increase in dopamine concentrations in the brain is thought to improve nerve conduction and to assist in lessening the movement disorders in Parkinson disease.
Dopa-responsive dystonia (DRD)
A condition that typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, spasticity and can be successfully treated with drugs. Segawa dystonia is an important variant of DRD. In Segawa dystonia, the symptoms fluctuate during the day from relative mobility in the morning to increasing disability in the afternoon and evening and after exercise. DRD may not only be rare but also rarely diagnosed since it mimics some forms of cerebral palsy.
Dorian Gray effect
Sudden aging, an abrupt change from seeming youthfulness to the reality and ravages of age, as can occur naturally or when the effects of plastic surgery and Botox treatments wear off.
Dorsum
The back or posterior side of a structure. "Dorsum" is the Latin word for the back. Something pertaining to the dorsum is dorsal. The dorsal surface of the hand is the back of the hand, the side opposite the palm. The dorsal surface of the foot is the back of the foot, the side opposite the sole. The dorsal vertebrae are the thoracic vertebrae; they form part of the back. The dorsal roots of the spinal nerves are the back roots, the posterior roots.
Dose, absorbed
Double contrast barium enema
A series of x-rays of the colon and rectum taken after the patient is given an enema, followed by an injection of air. The barium outlines the intestines on the x-rays, allowing many abnormal growths to be visible
Double helix
The structure of DNA with the two strands of DNA spiraling about one other. The double helix looks something like an immensely long ladder twisted into a helix, or coil. The sides of the "ladder" are formed by a backbone of sugar and phosphate molecules, and the "rungs" consist of nucleotide bases joined weakly in the middle by hydrogen bonds.
Double pneumonia
Inflammation of both lungs. Medically called bilateral pneumonia.
Double-blind
Term used to described a study in which both the investigator or the participant are blind to (unaware of) the nature of the treatment the participant is receiving. Double-blind trials are thought to produce objective results, since the expectations of the researcher and the participant about the experimental treatment such as a drug do not affect the outcome. Also called double-masked.
Double-blinded study
A study in which at least two separate groups receive the experimental medication or procedure at different times, with neither group being made aware of when the experimental treatment or procedure has been given. Double-blinded studies are often chosen when a treatment shows particular promise and the illness involved is serious. It can be hard to recruit human subjects for a blinded study of a promising treatment when one group will receive only a placebo or an existing medicine.
We thank you for using the Medical Glossary to search for Dose, absorbed. If you have a better definition for Dose, absorbed than the one presented here, please let us know by making use of the suggest a term option. This definition of Dose, absorbed may be disputed by other professionals. Our attempt is to provide easy definitions on Dose, absorbed and any other medical topic for the public at large.
This dictionary contains 19186 terms.
|
|