Some basic science:
On the whole it is cooler at night.
Cooler air contracts.
There is more oxygen in moles per litre in the contracted cooler air. (this
is the principle used to give more power to diesel engines by use of an
intercooler)
He will get more oxygen per breath at the same volume and therefore the same
muscular effort.
Energy comes from respiration which requires oxygen. Therefore he has more
energy at night.
The body has huge physiological reserves and such tiny changes would be
imperceptible to the conscious mind.
Asbestos plaques are not associated with breathlessness in the absence of
other disease.
If he has Asbestosis, this would limit his lung volume, getting extra oxygen
in the same volume should help.
He is wrong.
Dr Kevin RH Smith MSc MB ChB FRCS AFOM DTM&H
WellWork Ltd
www.wellwork.co.uk
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-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]] On Behalf
Of Susan Clarke
Sent: 09 February 2007 16:21
To: [log in to unmask]
Subject: [OCC-HEALTH] Asbestos and shift work
Hello all!
can anyone help? I have a client employee with Asbestos Pleural plaques
diagnosed from his work with asbestos in 1970's. The current company has
just changed to a new shift system....one week earlies 6am-2pm and one week
lates 2:30 - 11pm.
Employee is overcome with exhaustion and breathlessness due " to the air
pressure dropping at night and reduced oxygen in night air". He states that
this is well documented. So, he has requested "fixed" early shifts. I have
written to GP for Specialist reports from his records and for further
info.Have also contacted EMAS who are researching this too.
Can anyone help? Is this condition exacerbated in this way for these
reasons?
Many thanks.
Regards,
Sue
Susan Clarke BSc(Hons)
Occupational Health Specialist
Ock Health Ltd
15 Wick Close
Abingdon
OX14 2NQ
Tel: +44 (0) 870 6091443
Mob: +44 (0) 7801 009676
email: [log in to unmask]
www.ockhealth.com
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For Occupational Health jobs, go to http://OHJobs.drmaze.net
Find out about Occupational Health Nursing Education in UK at
http://home.wlv.ac.uk/~in6232/aohne/
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