Intravenous drug users

Venous return is the rate of blood flow back to the heart.

This anomalous pulmonary venous return can be either partial (PAPVR) or total (TAPVR).

If the local resistance rates are greater than 10 , a dose of intravenous ceftriaxone is often prescribed.

Venous stasis, or venostasis, is a condition of slow blood flow in the veins, usually of the legs.

CVP reflects the amount of blood returning to the heart and the ability of the heart to pump the blood into the arterial system.

The Bainbridge reflex, also called the atrial reflex, is an increase in heart rate due to an increase in central venous pressure.

Close to 70 of dextran 40 is excreted in urine within the first 24 hours after intravenous infusion, while the remaining 30 are retained for several more days.

After intravenous administration, LD50 (lethal dose for 50 of animals) values were 33 and 45 75 mg kg in mice and rats, respectively.

The fibrosis in cirrhosis can lead to destruction of other normal tissues in the liver including the sinusoids, the space of Disse, and other vascular structures, which leads to altered resistance to blood flow in the liver and portal hypertension.

No signs of toxicity were observed in any organ after bilastine massive overdosing, either orally (in mice, rats and dogs), or intravenously (in rats and dogs) during 4 weeks.

See also Chronic venous insufficiency References External links Baylor College of Medicine Venogram procedure page, retrieved November 4, 2006 WebMD Venogram procedure page, retrieved November 4, 2006

Since the heart is a 'demand pump', that pumps out whatever blood comes back into it from the venous system, it is effectively the amount of blood returning to the heart that determines how much blood the heart pumps out ( Q ).

The electrodes have to be placed on the calf either both electrodes on one calf if the venous disease affects only one leg, or one electrode on each calf if the pathology concerns both legs.