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Previous by Date: Subject: Re: [DCHAS-L] Cadaver Discussion Date: Wednesday, August 27, 2014 4:59:35 PM Author: "Nail, John" <jnail**At_Symbol_Here**OKCU.EDU> |
Next by Date: Subject: Re: [DCHAS-L] Cadaver Discussion Date: Thu, 28 Aug 2014 01:42:59 +0000 Author: pzavon**At_Symbol_Here**ROCHESTER.RR.COM |
John,
I understand your challenges. Since the anatomists must be very close to the contaminant source - increasing dilution ventilation gets you very little in the
way or exposure control. Downdraft does not work well either because the cadaver and the plastic they are wrapped in to retard desiccation, block the downdraft intakes. Flanged, slotted, side-draft exhaust with laminar supply air from above provides the
best exposure control. I’ve tried to explain these issues in the following presentation and videos:
http://www.anatomy.org/sites/default/files/ppts/Demer-EB2012GrossAnatomyVentilationPresentation.pptx
http://www.youtube.com/watch?v=VoD0V13u5OU&feature=youtu.be
http://www.youtube.com/watch?v=033R6d-1gD8&feature=youtu.be
-Frank
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]
On Behalf Of Nail, John
Sent: Wednesday, August 27, 2014 2:00 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: Re: [DCHAS-L] Cadaver Discussion
Frank,
Tables have been obtained; I don't know if they are downdraft. There seems to be a reluctance to use any engineering control$ other than the increased room airflow
that is mandated by the local department of health.
One of the … issues… is the 'why can't we do this as we did it 20 years ago'.
John
From:
<Demer>, "Frank R - (demer)" <demer**At_Symbol_Here**EMAIL.ARIZONA.EDU>
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Date: Wednesday, August 27, 2014 3:02 PM
To: "DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU" <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Subject: Re: [DCHAS-L] Cadaver Discussion
John,
Exhausting the air to the outside could prevent those outside the lab from being exposed to formaldehyde but unless you locally exhaust the cadaver tables in
a particular manner (see:
http://www.anatomy.org/sites/default/files/pdfs/AIHCe%202013%20VS%20Plate%20Mortuary%20Table%20Poster%20Final.pdf), those dissecting the cadavers may likely be over exposed to formaldehyde.
Best,
-Frank Demer
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]
On Behalf Of Nail, John
Sent: Wednesday, August 27, 2014 12:03 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: [DCHAS-L] Cadaver Discussion
Greetings,
Many thanks for the information regarding cadaver labs.
A bit of context: The issue appears to be the idea of converting a classroom into a cadaver lab without exhausting the air from the room directly to the outside
of the building.
Part of the on campus dialogue was the claim that the cadavers would not contain formaldehyde. The person making this claim produced a SDS that shows that the
embalming fluid contains '1 to 100 % methanol, 1 to 100% phenol, and greater than 1 % formaldehyde'.
John Nail
Professor of Chemistry
Oklahoma City University
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