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potassium) acids, and products of metabolism
so that an
accumulation of these substances
occurs.
T13N - Text number 13 - Nursing
DYSPEPSIA
Indigestion may be caused by organic disease in the
gastrointestinal tract and by many diseases originating
elsewhere. Consideration will be given here mainly to symptoms
that occur in the absence of demonstrable organic disease.
Common causes are eating too much or too
rapidly,
inadequate mastication (frequently due to poor dentition)
eating during emotional upsets or severe mental strain, and
swallowing large amounts of air. Other factors are excessive
smoking; constipation; and ingestion of poorly cooked
foods,
those with high fat content and others such as cucumbers,
radishes
and gas-forming vegetables C e »9* beans, cabbage, turnips, onions).
Most of the symptoms result from altered
motor activity. Fats inhibit such activity, decrease
gastric
peristalsis,
lower gastric tone and prolong gastric emptying time. Moderate
distension of the stomach stimulates motility, while
distension, such as occurs from overeating., inhibits
marked
motility
and may produce a sensation of epigastric distension and
fullness
and nausea. Nervousness and anxiety tend to increase peristalsis,
while fear, shock, depression, pain and physical fatigue tend
to inhibit it and reduce gastric
tone.