Final answer:
For a client reporting disturbed sleep due to allergic pruritus, Chlorpheniramine is an antihistamine that can help treat allergy symptoms and has sedative properties that may aid in sleep. Other non-sedating antihistamines listed may treat allergy symptoms but are less likely to assist with sleep issues.
Step-by-step explanation:
A client reports disturbed sleep due to allergic pruritus. Which medication would help the client sleep and treat the allergic symptoms? The medications listed, such as Cetirizine, Fexofenadine, Desloratadine, and Chlorpheniramine, are all antihistamines that work by reducing or eliminating the effects of histamines which cause allergy symptoms and inflammation. However, when addressing both allergic symptoms and sleep disturbance, an antihistamine with sedative effects would be beneficial.
Among the given options, Chlorpheniramine is an H₁-antihistamine that is known to have sedative properties because it crosses the blood-brain barrier and can assist with sleep. In contrast, Cetirizine, Fexofenadine, and Desloratadine are non-sedating antihistamines which are less likely to induce drowsiness and may not be as effective in aiding sleep. Therefore, for a client reporting disturbed sleep due to allergic pruritus, Chlorpheniramine could potentially help alleviate the allergy symptoms and also promote sleep.
It's important to note that while Chlorpheniramine can be useful for allergy symptoms and has sedative effects, it should be used with caution due to potential side effects, and it is always recommended to consult with a healthcare professional before starting any new medication.