Is disinfection required for skin test?

Taking medicine and getting injections are basic methods of treating diseases and are the accepted principles in the medical community. Only medicines can eliminate viruses, bacteria and other substances in the body. However, people have different physiques and different adaptability to medicines. Some people are more allergic and are prone to allergic reactions after drug injections. Therefore, a skin test before injecting the drug can prevent allergies in time. However, is disinfection required for a skin test?

Before the skin test, skin disinfection is required according to normal medical procedures! Generally, you can apply iodine and medical alcohol to the skin! For skin disinfection before skin testing, choose 75% ethanol and avoid using iodine disinfectants to avoid affecting the observation of local reactions. However, in actual clinical work, different hospitals have different practices.

Skin test is the abbreviation of skin (or intradermal) sensitivity test and is the most commonly used specific test in clinical practice. Certain drugs are prone to allergic reactions during clinical use, such as penicillin, streptomycin, cytochrome C, etc. Common allergic reactions include rash, urticaria, dermatitis, fever, angioedema, asthma, anaphylactic shock, etc. Among them, anaphylactic shock is the most serious and can even lead to death.

In order to prevent allergic reactions, especially severe allergic reactions, it is required that some drugs that are prone to allergic reactions undergo skin sensitivity tests before use. Drugs with negative skin tests can be used by patients, while those with positive skin tests are prohibited. These drugs that require skin testing are called skin test drugs.

Preparation:

First, the antigen for the test should be prepared. If qualified products are available, they can be purchased directly. There are many types of substances that can act as allergens, such as animal fur, poultry feathers, pigeon droppings, insects, mites, fungi, pollen, weeds, physical dust and various foods. The preparation methods for different antigens are different, but generally include the following steps: ① Collect raw materials; ② Crush and homogenize; ③ Degrease and extract; ④ Filtrate and separate; ⑤ Package and store. The extracted product should be identified before packaging and storage.