Tension, etc. : c-reactive protein (crp) - research has indicated that crp concentration is associated with future risk of a wide range of common diseases, including: heart attack, stroke, deaths from various cancers, chronic lung disease, injuries, and other conditions. Crp is produced by the liver in response to injury or infection. viagra online Muscle cells within coronary arteries also produce crp. viagra use elderly However, this study suggests that the causality seems unlikely. Homocysteine - this is an amino acid produced by the body, often as a by-product of consuming meat. It is made from methionine, another amino acid, and is then turned into other amino acids. Coronary heart disease, as well as other cardiovascular conditions seems more likely to occur if homocysteine levels are elevated. dissolving viagra under the tongue Fibrinogen - a blood protein which is involved in the blood clotting process. Excess levels may encourage the clumping of platelets, resulting in the formation of clots. Lipoprotein (a) - may undermine the body's ability to dissolve blood clots. Lipoprotein (a) forms when an ldl particle attaches to a specific protein. viagra use elderly What are the causes of coronary heart disease (coronary artery disease)? viagra does go generic Experts say that coronary artery disease starts with injury or damage to the inner layer of a coronary artery. viagra insurance According to the mayo clinic, usa, in some cases this damage/injury may occur during childhood. When the artery's inner wall is damaged plaques (fatty deposits) build up at the site of the injury. The fatty deposits - known as called atheroma - consist of cholesterol and other cellular waste products. order viagra online This accumulation at the site of the damage is called atherosclerosis. If bits from the fatty deposits break off or rupture, platelets will clump in the area in an attempt to repair the blood vessel - sometimes this clump can block the artery, which either reduces or blocks blood flow, and can result in a heart attack. generic viagra without prescription Diagnosing coronary heart disease (coronary artery disease) the doctor will probably ask the patient questions about their medical history, symptoms and carry out a physical examination. One or some of the following diagnostic tests may also be ordered: ecg (electrocardiogram) - this device records the electrical activity and rhythms of the patient's heart. generic viagra Electrodes are attached to the patient's skin and impulses are recorded as waves are displayed on a screen (or printed on paper). The test may also reveal any damage to the heart from a heart attack. A holter monitor - the patient wears a portable device which records all his/her heartbeats. It is worn under the clothing and records information about the electrical activity of the heart while the patient goes about his/her normal activities for one or two days. cheap viagra It has a button which can be pressed if symptoms are felt - then the doctor can see what heart rhythms were present at that moment. Some abnormalities may indicate a problem with. order viagra canada