coin test for anemia?

kathy saito (ksaito@foothill.net)
Mon, 26 Apr 1999 20:14:41 -0700


Message-Id: <l03020901b34adafd3c37@[206.170.177.68]>
In-Reply-To: <v01510100b34a26ea5522@[156.1.188.13]>
Date: Mon, 26 Apr 1999 20:14:41 -0700
To: "Pinhole Listserv" <pinhole@exploratorium.edu>
From: kathy saito <ksaito@foothill.net>
Subject: coin test for anemia?

Hi Pinholers -

I am teaching a unit on Vitamins and Minerals and a student told me about a
"test" to tell if you are anemic: you rub a 14K gold or sterling silver
ring across your face and if it leaves a black/grey streak, you are anemic.
When we tested the class, most of the girls came out positive and very few
boys did. We also heard that it means you're vegetarian, but of the girls
that came out positive, only two were vegetarian. Someone proposed that
it's a reaction to makeup, but when we rubbed the coin on areas not covered
with make-up, we still got a positive result.

My questions are: Does this "test" really show you're anemic? If so, why?
What's the chemistry behind it? And, if the test doesn't show you're
anemic, what does it show and why?

Very curious out in Folsom (my students are too!) and looking forward to
some answers....

Kathy Saito
Folsom High School

ps. sent this question in to Scientific American's website and have yet to
hear an answer. I have more faith in you Pinholers in getting a response,
so please don't let me down! =)

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