Nahatesti

Nahatesti is a term that refers to a skin test used in medical diagnostics. This type of test involves introducing a small amount of a substance into or onto the skin to observe for a reaction. The most common application of nahatesti is in allergy testing, where potential allergens like pollen, animal dander, or certain foods are applied to the skin.

The procedure typically involves a prick test or a patch test. In a prick test, a small drop of a suspected allergen solution is placed on the skin, and the skin is then pricked through the drop. In a patch test, a small amount of the substance is applied to the skin and covered with an adhesive patch. The skin is then monitored for redness, swelling, itching, or a rash, which can indicate an allergic reaction.

Nahatesti is also used to test for certain infectious diseases, such as tuberculosis. In this context, a purified protein derivative (PPD) is injected under the skin, and the area is examined after a period of time for induration (a raised, firm area). A positive result suggests exposure to the tuberculosis bacteria. The interpretation of nahatesti results requires careful consideration by a trained healthcare professional, taking into account the patient's medical history and other diagnostic findings. These tests are generally considered safe, with potential side effects being localized irritation or discomfort at the test site.