The transfusion reaction refers to an adverse reaction caused by the input of blood or its products or the infusion set used during or after the blood transfusion. Here are some common transfusion reactions.
1, fever reaction. Fever reaction is the most common reaction in blood transfusion. It occurs within 1 to 2 hours after transfusion or transfusion. It has chills or chills, fever, body temperature up to 40 °C, accompanied by skin flushing, headache, nausea, vomiting, etc. Symptoms relieved after 1-2 hours. If the reaction is light, slow down the number of drops to reduce the symptoms. In severe cases, blood transfusion should be stopped, vital signs should be closely observed, symptomatic treatment should be given, and the doctor should be notified. If necessary, take antipyretic analgesics and anti-allergic drugs according to your doctor's advice.
2, allergic reactions. The main cause of allergic reactions is that the patient is allergic. The foreign protein in the blood is combined with the protein of the allergic organism to form a complete antigen and sensitized; the blood donor uses the sensitizing drug or food before the blood donation, so that the input The blood contains sensitizing substances. Symptoms vary in severity, mild itching, moderate angioedema, severe dyspnea due to edema of the throat, swollen sounds in both lungs, and even anaphylactic shock. When an allergic reaction occurs, the lighter slows down the blood transfusion rate and continues to observe, and the severe one immediately stops the blood transfusion.
3. Hemolysis reaction. The hemolysis reaction is the most serious reaction in blood transfusion. The causes of hemolysis reaction are: input of heterotypic blood, input of metamorphic blood, addition of hypertonic or hypotonic solution in the blood or drugs that can affect the pH change of blood, resulting in massive destruction of red blood cells. Typical symptoms occur after 10-20 ml of blood is entered and are aggravated as the input blood volume increases. Can cause head pain, numbness of the limbs, severe pain in the lower back and chest tightness and hemoglobinuria. It is accompanied by symptoms of chills, high fever, shortness of breath and blood pressure drop. Some can cause renal tubular obstruction, the patient has symptoms of acute renal failure such as oliguria and anuria, and severe cases can lead to death.
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