Arashis acommon allergic reactionto medications.Drug allergiesoccur when the immune system overreacts to a medication, leading to symptoms such as:
* Skin rash (most common)
* Hives (urticaria)
* Swelling (angioedema)
* Anaphylaxis (severe reaction)
* A. Dizziness##Side effect, not an allergic reaction.
* Some medications (e.g., antihypertensives) cause dizziness, but it isnot an immune system response.
* B. Constipation##Side effect, not an allergic reaction.
* Opioids (e.g., morphine, oxycodone) commonly cause constipation, but it isnot due to an allergy.
* C. Nausea##Side effect, not an allergic reaction.
* Many medications (e.g., antibiotics, chemotherapy) cause nausea, but this isnot an immune- mediated reaction.
* American Academy of Allergy, Asthma & Immunology (AAAAI)- Defines allergic reactions to medications.
* FDA Drug Allergy Guidelines- Lists common symptoms of drug allergies.
* PTCB PTCE Exam Content Outline- Covers adverse drug reactions and medication safety.
Why Not the Other Options?Key References: