Question

howard is working with a cleaning solution that contains sodium hydroxide. although he is using gloves, when he pours the solution to dilute it for cleaning use, he spills a bit on his arm. his arm feels slimy to the touch and now has a burn mark. what is the chemical route of entry? select the best option. inhalation ingestion injection

Explanation:

• Inhalation is when a chemical is breathed in through the lungs. There is no mention of Howard breathing in the sodium hydroxide solution.
• Ingestion is when a chemical is swallowed. There is no indication that Howard swallowed the solution.
• Injection is when a chemical is forced into the body, like with a needle. This is not the case here.
• The solution spilled on his arm (skin contact). But since the options don't have "dermal" (skin - related route which is a common chemical route of entry), and among the given options, if we assume a wrong - option scenario (maybe a mis - listing in the problem), but if we strictly go by the given options and the fact that it's a contact (even though not a perfect fit as the standard routes include dermal which is not listed), but if we consider that the problem might have an error and we have to choose from the given, none of the options (Inhalation, Ingestion, Injection) are correct. However, if we assume that the intended answer is based on a mis - categorization (maybe the problem confused dermal with one of the listed, but in reality, the correct route is dermal which is not an option here. But if we have to pick from the given, there is no correct choice. But if we consider that maybe the problem had a typo and the intended route was dermal (not listed) and among the given, if we assume a wrong approach, but in reality, the answer should be that none of the given options (Inhalation, Ingestion, Injection) are correct as the route is dermal (skin contact). But since we have to choose from the given:

Answer:

None of the options (Inhalation, Ingestion, Injection) are correct. The correct chemical route of entry is dermal (skin contact) which is not listed among the provided options.