Respuesta :
Answer:
A
Explanation:
Sinusitis is the inflammation of the tissues in your sinuses. (The suffix -itis means inflammation.)
To medically treat sinusitis, nasal vasoconstrictors are used to constrict the blood vessels in the nose, which then relieves the inflammation because the airways in the nose have more space away from the inflammation.
Oral alpha adrenergic vasoconstrictors are needed to help treat sinusitis and promote drainage. Alpha receptors in the muscle pick up on this medication, which helps smooth muscle contraction to help patients breathe easier with this condition.
Phenylephrine is a good example of a nasal vasoconstrictor that is used to treat sinusitis.
However, although ibuprofen is known to help with inflammation, acetaminophen and ibuprofen are not nasal vasoconstrictors.
Amoxicillin and axithromycin is used to treat bacterial infections, not for inflamed sinuses.
Although diphenhydramine is used to relieve sinus problems, it is an antihistamine, not a vasoconstrictor, which makes the only correct answer as A.
Final answer:
Options 1) Phenylephrine and Oxymetazoline are both nasal vasoconstrictors commonly used to treat sinusitis by reducing nasal congestion. They are sympathomimetic drugs that act as α₁-adrenergic agonists and are found in many over-the-counter decongestant preparations.
Explanation:
When discussing nasal vasoconstrictors commonly used for sinusitis, options 1 and 4 in the list provided are both related to sinus treatment, but with different mechanisms of action. Specifically, for vasoconstrictors that directly work on the nasal passages to reduce congestion, the correct answer is option 1) Phenylephrine and Oxymetazoline.
Phenylephrine is a common sympathomimetic drug and an α₁-adrenergic agonist, which means it stimulates specific receptors that cause nasal blood vessels to constrict, leading to decreased swelling and congestion. Similarly, Oxymetazoline is another sympathomimetic agent that acts on the same receptors to provide relief. These nasal vasoconstrictors are available in over-the-counter preparations either as single ingredients or combined with other pharmaceuticals like antihistamines, guaifenesin, or pain relievers like acetaminophen.
