The nurse is administering a drug that antagonizes H-1 histamine receptors. Which is the most likely expected outcome of this therapy?

Question

1. The client will report that headache is improved.
2. The client will cough less.
3. The client will report less sneezing and tearing.
4. The client will report less wheezing and more energy.

Answer 1

Correct Answer: 3
Rationale 1: Antihistamines are not very effective at relieving headaches.
Rationale 2: Antihistamines do not ease coughing.
Rationale 3: Antihistamines are histamine blockers (H-1 blockers). Histamines are responsible for sneezing, itching, and watery eyes.
Rationale 4: Antihistamines do not relieve wheezing.
Global Rationale: H1-receptor antagonists, also called antihistamines, are drugs that selectively block histamine from reaching its H1 receptors, thus alleviating allergic symptoms. Antihistamines are not very effective at relieving headaches and do not relieve coughing or wheezing.