Nitroglycerin is the drug of choice for sudden heart attack, but as long as there is chest tightness and chest pain can just take nitroglycerin to save the emergency? Nitroglycerin is a necessary drug for patients with coronary heart disease. It is used to relieve pain by dilating coronary arteries and venous vessels, alleviating the cause of angina pectoris, reducing myocardial oxygen consumption, and increasing blood supply to the heart muscle. However, if used incorrectly, it can also lead to hypotension, syncope and even death. Nitroglycerin can expand blood vessels to save the emergency Nitroglycerin is a nitrate drug, with the role of expanding coronary blood vessels, reducing the heart load, protecting myocardial cells, can effectively relieve myocardial ischemia and angina, clinically mainly used in the treatment of coronary heart disease and heart failure. For the elderly who have sudden heart attack, nitroglycerin tablets are usually held under the tongue, which can take effect within 1-3 minutes and reach the maximum effect in 3-5 minutes, playing an important role in the golden 5 minutes of heart disease rescue and treatment. In addition to nitroglycerin, chewing about 300 mg of aspirin without ulcers and other contraindications can also play a role in saving the life of an emergency. Nitroglycerin for heart disease should be noted: 1. Things can not be done: when containing a tablet of nitroglycerin is not effective, should be taken again every 5 minutes, so repeat 3 times. If it is still ineffective, the possibility of myocardial infarction or other medical conditions should be considered. Do not increase the dosage any further, and call an ambulance immediately. Before the ambulance arrives, give the patient a small amount of warm water, 20-40ml is sufficient to promote blood circulation. 2. Sublingual: Sublingual capillaries are very rich, the drug is rapidly absorbed into the blood, 1-2 minutes that the pain relief effect occurs. The absorption is slow and the effect is poor when swallowed. If first chewed and then pressed under the tongue, the effect will be faster. Because the chewed drug is easier to be absorbed rapidly through the sublingual mucosa, the time to enter the coronary artery is relatively short. 3. combination of fast and slow: when angina attack, first aid generally choose nitroglycerin tablets. If angina attacks repeatedly, you can take medium- and long-acting preparations at the same time as the attack to prevent another attack. Medium and long-acting drugs commonly used are cardiac pain, long-acting nitroglycerin, the general effect can last 4-8 hours. 4. Do not stand: nitroglycerin has a very obvious dilating effect on the cerebral blood vessels, and immediately after taking the drug, flushing, headache, upright hypotension and fainting may occur when standing. Elderly patients or patients taking the drug for the first time have dizziness and headache after taking the drug sitting down, but they can soon return to normal as long as they lie down and rest or take symptomatic treatment. With the prolongation of taking the drug, this effect will gradually decrease or even disappear. Which patients should not use nitroglycerin indiscriminately? 1. Disallowed for people with low blood pressure: nitroglycerin dilates coronary blood vessels while also dilating other blood vessels, and blood pressure below 90/60mmHg
If you take nitroglycerin, your blood pressure may drop even lower. 2. Prohibited for people with glaucoma: Nitroglycerin can increase cerebral and intraocular pressure, so it should be prohibited for people with glaucoma and cerebral hemorrhage. 3. Not to be taken at the same time with Viagra: Viagra will dilate the cavernous blood vessels of the pubic meridian and enhance the vasodilatory effect of nitroglycerin. 4. Early myocardial infarction is prohibited: Early infarction with severe hypotension and tachycardia should be prohibited. Sudden heart attack, or heart discomfort symptoms, must actively seek medical attention, clear diagnosis, symptomatic treatment, do not blindly use drugs. Patients with coronary angina, should also be under the guidance of a doctor, the correct use of drugs, in order to best play the role of emergency drugs to avoid accidents.