Quiz

July 2009 Monthly Quiz

Last month's questions:

Which one of the following is a recognised side effect of ingesting an excessive amount of vitamin A?

Answer: Fever

As vitamin A is fat-soluble, disposing of any excesses taken in through diet is much harder than with water-soluble vitamins B and C. Acute toxicity generally occurs at doses of 25,000 IU/kg of body weight, with chronic toxicity occurring at 4,000 IU/kg of body weight daily for 6–15 months. In chronic cases, hair loss, dry skin, drying of the mucous membranes, fever, insomnia, fatigue, weight loss, bone fractures, anemia, and diarrhea can all be evident on top of the symptoms associated with less serious toxicity.

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Allergic rhinitis, more commonly known as 'hay fever', is a condition triggered by the pollens of certain seasonal plants. Symptoms are caused by the release into the body of which one of the following chemicals?

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