Among all the impish offspring of the Stone God, wizards and witches, that made Detroit feared by the early settlers, none were more dreaded than the Nain Rouge (Red Dwarf), or Demon of the Strait, for it appeared only when there was to be trou... Read more of The Nain Rouge at Urban Myths.caInformational Site Network Informational
Privacy


Home


Medical Articles


Mother's Remedies


Household Tips


Medicine History


Forgotten Remedies


Search

Medical Articles

Division Of The Process Of The Disease Into Periods

Its course is commonly divided into four distinct periods, vi...

Influenzal Laryngotracheobronchitis

Influenzal infection, not always by the same organism, sweep...

The Need Of Pure Air

Free Air is Pure. As air, in the form of wind, actually sweep...

Care Of The Nails

Importance of Clean Nails. On account of their constant use, ...

Head Massaging The

This is so important in many cases of neuralgia, headache, and...

Conium

is valuable as a _palliative_ upon cancerous tumors. As a _cu...

Ventilation All-important

If the circulation of air is necessary in any other form of ...

Diet For A Long, Long Life

Some people not only want to be healthy, but they want to liv...

Benign Growths Primary In The Tracheobronchial Tree

Extension of papillomata from the larynx into the cervical tr...

Bruises Case Xvi

J. Jennings, bricklayer, aged 26, fell through the roof of a ...

3 Treatment Of Torpid Forms Of Scarlatina Difference In The

TREATMENT POINTED OUT. When the _reaction_ is _torpid_, the ...

Eyes Spots On

These spots are of two different kinds, and yet they are very ...

Fever Typhoid

Treat as under Fever, Gastric, and Fever. In addition, great c...

Snake Bites

A snake bite is only one of a large class of injuries which ma...

Yellow Fever

[As I have never practiced farther South than Cincinnati, and...

The Blood Vessels

Where the Body Does its Real Eating. When once the food has b...

Carbolic

Readily identified by smell of tar or carbolic. Wash mouth wel...

Aconite

Often in cases where our treatment fails to cure, the failure ...

Physical Care

REST, fresh air, exercise, and nourishment, enough of each in...

Bruises Case Xvii

An old man, aged 60, received a bruise upon the occiput from ...



The Effect Of Drugs On Venous Blood Pressure





Category: Uncategorized
Source: Disturbances Of The Heart

Capps and Matthews [Footnote: Capps, J. A., and Matthews, S. A.:
Venous Blood Pressure as influenced by the Drugs Employed in
Cardiovascular Therapy, THE JOURNAL A. M. A., Aug. 9, 1913, p. 388.]
have shown that even with first class preparations of digitalis,
there may be only a moderate gradual rise in arterial pressure, but
not much change in venous pressure. Venous pressure was not much
affected by small doses of epinephrin, but with large doses it rose
from 10 to 80 mm. Pituitary extract acts somewhat similarly to
epinephrin. Caffein, though raising the arterial pressure, did not
influence the venous pressure. Strychnin did not raise either
pressure until the dose was sufficient to cause muscular
contractions. They found that the nitrites caused a fall in venous
pressure as well as arterial pressure, although the heart might be
accelerated and more regular. They think that the nitrites act by
depressing the nerve endings in the veins as well as the arteries.
Morphin they found did not act on the venous pressure, although it
lowered arterial tension, in ordinary doses of 1/8 or 1/6 grain; but
with doses of from 1/4 to 1/2 grain, both arterial and venous
pressures were lowered. They found that alcohol in ordinary doses
did not influence the venous pressure, although it lowered the
arterial pressure; but very large doses lowered the arterial and
raised the venous pressure. They think that when the venous pressure
is increased only by large doses of epinephrin, pituitary extract
and alcohol, the effect is due to failure of the heart, although it
may be due to an increase of carbon dioxid in the blood, in other
words, to asphyxia.





Next: Hypertension

Previous: The Effect Of Drugs On Blood Pressure



Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK


Viewed 1463