OHST Practice Exam

What is the primary function of barrier cream?

1. Replaces lanolin in the skin

2. Keeps hands clean

3. Inhibits contact of solvent with skin surface

4. A cure for chapped dry hands and feet

The correct answer is: Inhibits contact of solvent with skin surface

The primary function of barrier cream is to inhibit the contact of solvents, irritants, and other harmful substances with the skin surface. This is crucial in various occupational settings where individuals may be exposed to chemicals or other irritants that can cause skin damage or allergic reactions. Barrier creams create a protective layer on the skin, effectively reducing the likelihood of substances penetrating the skin and causing irritation or harm. This protective function is essential for workers in industries where they may handle harsh chemicals, thus promoting skin health and safety. While keeping hands clean is important, barrier creams specifically work to protect the skin from direct contact with harmful materials rather than merely ensuring cleanliness. Similarly, while they may provide some relief for chapped dry hands and feet, their primary role is not as a treatment but as a preventative measure. Finally, replacing lanolin in the skin is not a function of barrier creams; they do not necessarily replace natural skin oils but instead serve to provide a protective barrier against external elements.