Medicine Chapter 2 Flashcards
What did the french academy of science do in 1860
Set a challenge for scientists
Could spontaneous generation be proved.
What did pasteur discover when working on the challenge
Microorganisms were not created by the mixture as it decayed
The microorganisms were in the air and caused decay
Became known as germ theory
What were the 4 principles of germ theory
The air contains living microorganisms
Microorganisms can be killed by heating them
Microorganisms in the air cause decay
Microorganisms are not evenly distributed in the air
Date given for germ theory
1861
In what year did [Pasteur Public his book and what was its name
1878
Germ theory and its application to medicine
What effect did Pasteur theory have on surgery
Over the next 20 years it had a huge impact because it allowed understanding of whey infection developed after operations
What period was the black period
1846-66
What year did Joseph lister become a professor at Glasgow university
1859
How did lister come up with carbolic spray
Lister read Pasteur work on germ theory
Lister was told that carbolic acid was used at sewage works .
He realised it was the carbolic acid that was was killing the microorganisms present
Then he realised the smell of infected wounds is very similar to sewage
He thought it might be able to be used to prevent infection
listers records of amputations
1864-66= without antiseptics = 45.7% death rate
1867-1870= with antiseptics = 15% death rate
Why were his methods called antiseptics
Used to fight infection
Opposition to listers ideas
Carbolic spray made surgical equipment slippery and difficult to grip , slowed down the operation
The spray made the hands of the doctors crack and sore
Many doctors did not believe in germ theory so did not accept antiseptic techniques
Some doctors didn’t use the techniques properly
Many nurses were frustrated because they had to spend more time dressing patients’ wounds
Lister would adapt and adjust his techniques , doctors thought he was not confident
Who convinced the government that sewage system in London needed to be improved
Joseph bazalgette
How much did the London board of works give bazalgette
£3 million
Bazalgette became the chief engineer and what were his main plans
The sewers should be very large , oval shapes built of brick instead of small narrow pipes. This meant that sewage was less likely to get stuck
The whole system was planned to bring the waste down to the lower stretches of the Thames so the sewage would be washed out to sea