Word parts
What it means
When the immune systemih-MYOON SIS-tumThe body's defense system of cells, tissues and organs that fights germs and other foreign substances.Full entry reacts too strongly to something such as a drug, a food, latex, pollen or a bee sting. Reactions range from a rash, itching and hives to swelling of the lips and throat and, at worst, anaphylaxisan-uh-fuh-LAK-sisA sudden, severe allergic reaction that affects the whole body.ana- away, against-phylaxis protectionFull entry . Some happen within minutes of contact; others, such as a contact rash, appear hours or days later.
For the nurse
Ask about allergies and what happened during past reactions before giving any drug, and check the allergy band. Watch the client closely after the first dose of a new drug, especially IV, and stop an infusion at the first sign of a reaction.
At a glance
| Spanish | hipersensibilidad |
|---|---|
| Also written | hypersensitivities, hypersensitive |
Related terms
allergy
A reaction of the immune system to a substance that is harmless to most people.
anaphylaxis
A sudden, severe allergic reaction that affects the whole body.
immune system
The body's defense system of cells, tissues and organs that fights germs and other foreign substances.