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

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

Answer 1

Skin Absorption

Answer 2

## Step 1The term "chemical route of entry" refers to how a chemical, substance or toxin can get into your body. These routes typically include inhalation (breathing it in), ingestion (swallowing), skin absorption (through contact with the skin), and injection (entering through a wound or puncture to the skin).## Step 2In the given situation, Howard spills a cleaning solution, which contains sodium hydroxide, on his arm. Sodium hydroxide is a strong alkali, and when it comes in contact with skin, it denatures the proteins causing sliminess and further rubbing it leads to burns.## Step 3Based on the above observations, it can be concluded that the chemical entered Howard's body by entering through the skin, which is referred to as skin absorption.#

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