Essay On Venous Insufficiency

mediators, causing increasing capillary permeability and widespread fluid shift into the interstitial space, which was no longer functioning to maintain vascular volume (known as third spacing) in addition, causing further vasodilation to occur.

right-sided CHF = fluid may back up into your abdomen, legs and feet, causing swelling.

* Vaso-dilation – the blood vessels widen, bringing blood to areas of the body ie skin

There are three main types of blood vessels: arteries, veins, and capillaries. Arteries are vessels that usually carry highly oxygenated blood away from the heart and to the rest of the body. (The pulmonary trunk and related arteries are exceptions, as they actually carry blood from the lungs toward the heart.) Because arteries must transport high volumes of blood being forcefully pumped out by the heart and must therefore withstand greater pressure, most have thick, muscular walls and are more flexible as well. Arterioles, smaller types of arteries with thinner walls, branch off of the arteries to carry blood to another type of vessel, called the capillary. Capillaries are the most abundant blood vessels in the body. Thinner and smaller than the other blood vessels, the role of capillaries is to exchange substances like water, gases, chemicals, nutrients, wastes, etc. with the tissues of the body. The third type of blood vessel is the vein. Although they are generally larger than the other blood vessels, veins tend to have thinner, less flexible walls, as they are not forced to deal with such high blood pressures. Venules (veins’ versions of arteries’ arterioles) connect the capillaries to the veins, which then transport blood back

* Esophageal Varices Bleeding: scarring of liver causes blood flow through the liver to decrease. With the decrease in liver blood flow, more blood pumps through veins causing them to balloon outward. The increased amount of blood in the veins results in a vein bursting and leads to bleeding. This condition is secondary to portal hypertension because of the alternate routes the blood takes due to the scarred liver, causing the veins to work harder and accumulate more blood within a certain span of time, not being able to drain in a timely matter.

The increased resistance of blood flow through the pulmonary semilunar valve from the right ventricle backs up the pressure of blood

The right side of heart will increase in size as the muscle builds up and the heart rate will increase due to compensation for the left ventricle. With auscultation, the lungs will sound crackly from the liquid in the alveoli and interstitial space and when assessing respiration rate it is likely to be above thirty breaths per minute (Lewis et al., 2014). The patient may report that they are experiencing dyspnea, nocturia, fatigue, and a productive coughing. They may appear anxious and their skin may look pale (Lewis et al., 2014).

DVTs usually occur within the deep veins of the lower leg. The DVTs that remain in the lower leg and calf tend to be asymptomatic and do not become clinically significant. A DVT is most likely to present symptoms when the proximal leg veins are involved and also when the DVT obstructs venous outflow resulting in inflammation of the vein wall (Bonner and Johnson, 2014). Warmth, redness, pain and swelling in the affected limb are common symptoms of a DVT. If a patient presents with these symptoms, a physical examination of the whole limb should be undertaken by a nurse or physician to observe for signs suggestive of a DVT. Suggestive symptoms of DVTs include superficial venous dilation, tenderness along the course of the vein, unilateral leg oedema, cyanosis, warmth and erythema (Bonner and Johnson, 2014). On examination of the limb, these are the symptoms that the nurse or physician should be looking out for, however, diagnosis on clinical presentation alone is extremely difficult as these symptoms are not specific to DVT and can be present in numerous other conditions. To improve accuracy when determining the probability of a DVT, nurses are advised to use the two level DVT Wells score. Each clinical feature is accompanied with a score. If a patient presents with a score that is two points or higher, it is likely that a DVT is present and

Venous thromboembolism (VTE) is an epidemic that rain rapid in Australia and was a very big concern. The study of this sickness was a major Problem as it had affected the demographic area of Perth, Australia. The epidemic is a very big problem as VTE is connected with the trauma, surgery, and cancer and this sickness is caused while

Deep vein thrombosis (DVT) happens when a blood clot forms in one or more of the deep veins in your body, it usually takes place in your legs. Deep vein thrombosis can cause swelling or leg pains, and you may not get any symptoms at all. Deep vein thrombosis can arise if you have certain medical conditions that affect how your blood clots. Deep vein thrombosis can also happen if you don't move for a long time. I can happen sitting in a car for too long, after surgery, following an accident, or when you are confined to a hospital or nursing home bed. DVT is a serious condition because blood clots in your veins can break loose, travel through your bloodstream and lodge in your lungs. It can block the blood flow and cause a pulmonary embolism.

The bleeding occurs following trauma to the tissue this could be an overload of a tissue or even external force. One of the bodies first initial haemodynamic responses to bleeding is vasoconstriction which narrows the blood vessels causing decreased blood velocity, in 2008 (Watson) states that this is due to the release of noradrenaline(norepinephrine); the reaction last lasts only a few seconds to a minute. It is also explained by (Terkeltaub & Ginsberg, 1988) that both lymphatic and blood vessels are plugged to limit any fluid loss and platelet, aggregation is stimulated by the presence of thrombin. Vasoconstriction responds primarily to haemostasis which is a response to prevent blood loss and a platelet plug is formed to support the prevention of excessive

Deep vein thrombosis (DVT) is a disorder that occurs when a blood clot forms in a vein that is deep inside the body. It is mainly associated with veins in the legs, usually in the lower leg and thigh, but may occur in other parts of the body. About half of the people who have DVT show no symptoms, but people who sit for long periods, are over 60 and smoke are at higher risk, and should be aware of possible signs of a problem.

There was highly statistical significant difference between cirrhotic variceal group and cirrhotic non variceal group regarding serum albumin, Prothrombin time(PT), and platelet count.(table2)

Recently, however, there has been widespread use of the less invasive duplex ultrasound to assess the deep and superficial venous systems, allowing treatment to be much more focussed, as well as reducing the likelihood of trauma. The Duplex Ultrasound machine works by assessing the direction and speed of blood flow, whilst producing a direct ultrasound picture of the enlarged veins on a screen. This allows the specialist to map the distribution of veins.

The arteries are thicker and more elastic because of the fast pumping of blood that leaves the heart to other organs to the body, as where the veins are small due to the low blood flow because of the slow movement from the capillaries to the veins not like the forceful pumping from the heart to the arteries to the rest of the body. The Oxygenated blood goes through the arteries except the pulmonary arteries. Then Deoxygenated blood goes through the veins except the pulmonary veins. The lumen of the artery is narrow, were as the lumen of the veins is wider. There are not valves in the arteries, were as the valves are present in veins. In the arteries, endothelial cells of tunica intima are more long then wider, and have more elastic membrane that is more developed. Then the Tunica media is more muscular, and the tunica extrema is not as developed. In veins, the endothelial cells of tunica intima are not as long and have more elastic membrane then being developed. The Tunica media is less muscular were the tunica extrema is more developed. Arteries are deep within and the veins are more superficial. Capillaries are microscopic vessels; they carry blood from the arterioles then go to the small veins or venules. The wall of the capillary made up of a