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Hypothermia - experiment write up

Extracts from this document...

Introduction

________________ Introduction 2 Microscopic structure of the skin 2,3 Diagram 4 Homeostasis 5 Treatment for Hypothermia 5,6 When to seek medical advice? 6 ________________ Hypothermia The symptoms of hypothermia have been dubbed the four ? umbles: the stumbles, mumbles, fumbles, and grumbles. They?re signs of gradual loss of muscle coordination and movement. Various people are at risk of hypothermia. These include small babies, the elderly and people with severe illness. And it has been said that hypothermia is the number one killer of people who take part in outdoor sports and recreation. For example, walking, mountaineering or sailing. Measurements of body temperature are used to confirm the condition. The normal body temperature is 37oC and if a person?s body temperature goes below 32oC, then it means that the person has got Hypothermia. Microscopic structure of the skin The skin is the biggest organ in your body. It covers and protects everything inside your body. Without skin, people?s muscles, bones, and organs would be hanging out all over the place. The skin holds everything together and it is also responsible for protecting our bodies, helps keep our bodies at just the right temperature and it allows us to have the sense of touch. The skin is made up of three layers. The layer on the outside is called the epidermis. When the cells are ready, they start moving toward the top of your epidermis and newer cells continue to move up, older cells near the top die and rise to the surface of your skin. The epidermis is the outer protective layer of the skin and it consists of a living layer of epithelial tissue and a hard layer of dead cells. The second layer is called the dermis and this is hidden under your epidermis. The dermis is a thick layer of connective tissue underneath the epidermis of the skin. The dermis contains nerve endings, blood vessels, oil glands and sweat glands. ...read more.

Middle

An overall risk of this hazard happening is: 7/10 x 8/10 = 56/100. Breaking of boiling tubes There is a 5/10 chance of this potential hazard occurring as some people in the lab are not aware of how to use the boiling tubes properly and they might drop it when working with it. There is a 8/10 chance if this risk occurring as if the boiling tubes break, there will be cuts and infections to the person that is using it and the people that are around in the lab. Ensure that the person that is working and the other people in the lab use the equipment with care and use a test tube rack to place the boiling tubes so that it wouldn?t move around anywhere when you?re working with it. An overall risk of this hazard happening is: 5/10 x 8/10 = 40/100. Electric kettle There is a 3/10 chance of this potential hazard occurring. A person in the lab might [use the kettle properly and they might not connect kettle properly or there might be a wire that is broken. There is a 7/10 chance of this risk occurring as the hazards are electricity and heat and the person that is working with it would get an electrical shock from either a faulty kettle or from water coming into contact with the electrical current, or you could burn yourself by touching the hot kettle or scold yourself by coming into contact with the boiling water or steam. Ensure that the person using the kettle checks for any fault in the kettle before using it and make sure you don?t touch the kettle if it?s too hot as it would burn you so you might wear protective clothing such as lab coat and gloves. An overall risk if this hazard happening is: 3/10 x 7/10 = 21/100. Results Temperature / oC Time / Minutes Tube 1 Tube 2 Tube 3 Tube 4 0 70 60 69 72 1 68 59 69 72 ...read more.

Conclusion

39.0 23.8 23.5 23.0 23.0 22.8 Analysis As you can see above, I have the results of monitoring the heat loss in the body and the temperature. I have found out that the Normal hand temperature is 39.00C and this stays constant throughout because it is not getting affected by anything and it?s not losing any air because it?s a normal human temperature. On the other hand, wet/fan has a lot of heat because it was getting affected by the air and water in the surroundings, which made the temperature to decrease. ________________ Conclusion The table of results and the graph above shows the results of monitoring the heat loss in the body and temperature. I have found out that normal hand temperature stays the same or remain constant throughout because nothing is affecting the temperature, so it?s not losing air as it?s a human normal temperature. On the other hand, the left hand wet/fan temperature has lost a lot of heat because it was getting affected by the air in the surroundings and the water. This made a change in the results, as the temperature has decreased. Evaluation To evaluate this experiment, if I was to improve the investigation, then I would carried out the experiment longer, so instead of 5 minutes, I would have carried it out for 10 minutes or longer. This would have improved my investigation, as I would have obtained a reliable result. The longer you record the temperature, the better the results. Another way I have improved my investigation is by increasing the number of volunteers that was part of the investigation. As we only used one volunteer to get the results, we wouldn?t have got a reliable result and in order to get a reliable result, I would increase the number of volunteers so that I can collect all the results and compare it. By comparing the set of results, I would get a reliable result and this would make a change to my experiment and I can find out which hand condition lost more heat. ...read more.

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