What potential side effect should be monitored when giving corticosteroids?

Corticosteroids can lead to hypertension as a potential side effect due to a variety of mechanisms. These medications can cause sodium retention and potassium loss, leading to increased blood volume and ultimately elevated blood pressure. Additionally, corticosteroids can upregulate the sensitivity of blood vessels to catecholamines, resulting in vasoconstriction, which can further contribute to hypertension. It is important to regularly monitor blood pressure in patients receiving corticosteroid therapy to manage this side effect and prevent potential cardiovascular complications. Recognizing this risk allows for timely intervention and adjustment of therapy when necessary.

The other options listed do not align with common side effects of corticosteroid treatment. Low blood sugar levels are more typically associated with insulin or some antidiabetic medications rather than corticosteroids. Columnar cell hyperplasia can occur in certain specific medical contexts but is not directly linked to corticosteroid use. Excessive hair growth, while it can occur due to other hormonal therapies, is not a characteristic side effect of corticosteroids either. Thus, monitoring for hypertension is a crucial aspect of managing patients on corticosteroid therapy.