What Should a Blood Test Reveal for a Baby with Allergic Cough?
Baby's allergic cough can be caused by infection or allergy. Blood routine test is a non-specific test and cannot be used as a basis for diagnosing allergic cough, but it can be used as an auxiliary test. When the eosinophil count in peripheral blood increases, it can be considered as eosinophilic bronchitis or asthma. If the eosinophil count in peripheral blood is normal or decreased, and the serum IgE is normal, it is considered as typical allergic cough.
1. Increased eosinophil count in peripheral blood: An increased eosinophil count in peripheral blood can reflect allergic reactions in the body, but it is not a specific indicator of allergic cough.
2. Normal or decreased eosinophil count: If the eosinophil count is normal or decreased, it is generally not considered as allergic cough.
3. Normal serum IgE: If the serum IgE is normal, while the serum IgE is elevated, it can also be considered as typical allergic cough.
4. Other tests: If there are symptoms of rhinitis, nasal swab or nasopharyngeal swab tests can be performed. If there is a family history of allergic asthma, specific IgE can be checked.
When a baby experiences allergic cough, they should avoid contact with substances that may cause allergies, such as pollen, dust mites, animal fur, etc. During weather changes, attention should be paid to keeping warm to prevent the baby from getting cold. Additionally, contact with foods that may cause allergies, such as fish and shrimp, should be avoided. Babies should exercise more to enhance their physical fitness and prevent bacterial or viral infections. If allergic cough occurs, medical attention should be sought promptly, and treatment should be carried out under the guidance of a doctor.
