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Will you donate the right answers or be left with a bloody trivia mess? Test your health knowledge here!




Health Vol. 29

1 / 5

What is the rarest blood type in the world?

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2 / 5

Who developed the first antiseptic procedures in surgery, greatly reducing post-operative infections?

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3 / 5

Which vitamin is essential for blood clotting?

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4 / 5

What is the leading cause of preventable death worldwide?

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5 / 5

Which device, invented by Willem Einthoven in the early 20th century, measures the electrical activity of the heart?

Did You Know? It’s hard to imagine just how important blood donations are, but according to the American Red Cross, someone in the U.S. is in need of blood every two seconds.



  1. Barbara

    September 18, 2023 at 1:55 pm

    The AB – is what my answer but you tell me I didn’t get it right

  2. Steve

    November 7, 2023 at 12:38 pm

    AB- is the correct answer.
    There are several more of these quizes that also report a correct answer as being incorrect.
    However, what can you expect for free?

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