18 April 2012

What is Heat & H. No. 3?

This is part of a death certificate for Nelson Butler who died on 26 December 1925 in Seattle, Washington.

It's typed, so reading the writing is not a problem, but I am wondering what the test is that confirmed diagnosis (Heat & H. No. 3). I realize that this really isn't a genealogical necessity, but my curiosity is piqued.

The whole certificate appears below for anyone who needs to see the entire thing.

7 comments:

  1. Nephritis is kidney infection, often leading to kidney failure.

    Apparently HNO3 is a urine test of some sort. This is in Wikipedia:
    "The measurements of the urease residual activity have been carried out in Tris-HNO3 buffer after preincubation in model metal-salt solution."

    I know nothing about medicine, but it would appear that the urinalysis done confirmed the kidney disease.

    Maybe a doctor or nurse can clarify.

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  2. Anonymous6:18 PM

    This may not be the answer, but HNO3 is Nitric Acid.

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  3. Anonymous7:04 PM

    "H.No.3" could, I suppose, be HNO3 i.e. Nitric Acid.... When I googled Nephritis Nitric-Acid, I got a few hits that paired the two, and mention of nitric acid as a test for albumin. Hmm, sound like you need a medical professional to comment!

    Claire
    [not a medical professional]

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  4. Anonymous7:09 PM

    Then googling for "heat and nitric acid" did bring up some mentions of that test, e.g. at http://www.henriettesherbal.com/eclectic/ellingwood1/chronic-pare-nephritis.html

    Claire

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  5. It could be HNO3, which is nitric acid. My old medical dictionary says it is an extremely caustic and escharotic liquid, decomposing most organic substances. It is used internally as a hepatic and stomachic stimulant.Here is a link to a 1907 article on albuminuria, which is linked to nephritis. A number of diagnostic tests are listed, but the first, the Boiling Test, sounds like it might match your certificate. http://www.henriettesherbal.com/eclectic/thomas/albuminuria.html

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  6. Thanks guys!

    I wasn't expecting to get that much of a science lesson from a death certificate.

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  7. Anonymous8:49 PM

    Heat is applied to Nitic acid- can be used to look for arsenic poisoning as well.

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