Anaphylaxis is a life-threatening, acute allergic reaction to an antigen.
The medical term for a foreign substance is "antigen." An antigen is any substance that the immune system identifies as foreign and triggers an immune response.
An antibody is a specific protein evoked by an antigen.
Hymenoptera allergy is the medical term meaning allergic reaction to a wasp bite.
Anaphylaxis is an over response an antigen. It can be life threatening because of the swelling of the mouth and throat.
Red blood cells with an antigen on their surface are said to be Rh positive, Rh+. Rh negative, or Rh-, do nothave the surface antigen.
Contraindication is the usual term for that.
A heterologous protein; however, any abnormal substance (bacteria, viruses, cancer cells) in the body is called an antigen
Streptococcus pyogenes antigen assay
The medical term for an adverse reaction to treatment is "iatrogenic effect." This refers to any harm or side effect caused by a medical intervention, such as a medication, surgery, or other healthcare procedure.
Adverse Drug Reactionside effect
A foreign substance is a substance that doesn't belong somewhere. A piece of glass or splinter is a foreign substance that people get in their body.
The Medical term is Precipitin.