Category: G
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Gauge
A device for measuring the size, capacity, amount, or power of an object or substance.
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Gating
In radiology, a procedure used to reduce image artifacts caused by involuntary motion.
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Gate theory
The hypothesis that painful stimuli may be prevented from reaching higher levels of the central nervous system by stimulation of larger sensory nerves. This is one of the proposed explanations of the action of acupuncture and of transcutaneous electrical nerve stimulation (TENS) units.
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Gatekeeping
In medical care, deciding the allocation, limitation, or rationing of services. Decisions are based on a variety of factors including need; cost; the potential for success of the proposed therapy; and the availability of facilities, staff, and equipment.
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Gatch bed
An adjustable bed that provides elevation of the back and the knees. All hospital beds do this, using a crank or electrical motor.
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Gastrulation
The development of the gastrula in the embryo.
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Gastrotome
An instrument formerly used for incising the stomach or abdomen.
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Gastrothoracopag
Congenitally deformed twins joined at the stomach and thorax.
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Gastrostoma
A fistula, or a passageway created from the stomach through the abdominal wall.
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Gastrostenosis
Contraction (stenosis) of the stomach.