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Hypothermia, the Diving Reflex,

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Biology Paper, CSE Style (Martin)

Hypothermia, the Diving Reflex, and Survival

Full title, writer’s name, name of course, instructor’s name, and date (all centered).

Briana Martin

Biology 281 Professor McMillan April 17, XXXX

Marginal annotations indicate CSE-style formatting and effective writing. Source: Diana Hacker (Boston: Bedford/St. Martin’s, 2007). Adapted from Victoria E. McMillan (Boston: Bedford/St. Martin’s, 2006).
This paper follows the style guidelines in Scientific Style and Format: The CSE Manual for Authors, Editors, and Publishers, 7th ed. (2006).

Page header contains abbreviated title and the page number. Headings, centered, help readers follow the organization.

Hypothermia and Diving Reflex 2

ABSTRACT This paper reviews the contributions of hypothermia and the mammalian diving reflex (MDR) to human survival of cold-water immersion incidents. It also examines the relationship between the victim's age and MDR and considers the protective role played by hypothermia. Hypothermia is the result of a reduced metabolic rate and lowered oxygen consumption by body tissues. Although hypothermia may produce fatal cardiac arrhythmias such as ventricular fibrillation, it is also associated with bradycardia and peripheral vasoconstriction, both of which enhance oxygen supply to the heart and brain. The MDR also causes bradycardia and reduced peripheral blood flow as well as laryngospasm, which protects victims against rapid inhalation of water. Studies of drowning and near drowning of children and adults suggest that victim survival depends on the presence of both hypothermia and the MDR, as neither alone can provide adequate cerebral protection during long periods of hypoxia. Future research is suggested to improve patient care. INTRODUCTION Drowning and near-drowning incidents are leading causes of mortality and morbidity in both children 1 and adults 2. Over the past 30 years, there has been considerable interest in cold-water immersion incidents, particularly the reasons for the survival of some victims under seemingly fatal conditions. Research suggests that both hypothermia and a “mammalian diving reflex” (MDR) may account for survival in many near-drowning episodes 3. However, the extent to which these two processes interact is not

The abstract indicates the writer’s purpose and scope and summarizes the research cited.

Statistics are cited with endnotes.

Research is cited with an endnote.

Source: Diana Hacker (Boston: Bedford/St. Martin’s, 2007). Adapted from Victoria E. McMillan (Boston: Bedford/St. Martin’s, 2006).

Hypothermia and Diving Reflex 3

fully understood. Controversy also exists regarding the effect of the victim's age on the physiological responses to cold-water immersion. In this paper, I provide an overview of recent research on the protective value of hypothermia and the MDR in cold-water immersions. I also examine hypotheses concerning the effects of age on these processes and conclude with suggestions about future lines of research that may lead to improved patient care. Hypoxia during drowning and near-drowning incidents The major physiological problem facing drowning victims is hypoxia, or lack of adequate oxygen perfusion to body cells 1,4. Hypoxia results in damage to many organs, including the heart, lungs, kidneys, liver, and intestines 4. Generally, the length of time the body has been deprived of oxygen is closely related to patient prognosis. Only 6-7 s of hypoxia may cause unconsciousness; if hypoxia lasts longer than 5 min at relatively warm temperatures, death or irreversible brain damage may result 5. However, some victims of cold-water immersion have survived after periods of oxygen deprivation lasting up to 2 h 4. ... [The student goes on to highlight the major controversies and to add interpretation and analysis.] CONCLUSIONS Recent research on cold-water immersion incidents has provided a better understanding of the physiological processes occurring during drowning and near-drowning accidents. Current findings suggest that the cooperative effect of the MDR and
The writer provides a summary and an analysis of research. Subheadings separate distinct parts within a section. The writer provides an overview of research, cited with endnotes. The thesis states the writer’s three main goals and indicates the paper’s organization.

Source: Diana Hacker (Boston: Bedford/St. Martin’s, 2007). Adapted from Victoria E. McMillan (Boston: Bedford/St. Martin’s, 2006).

Hypothermia and Diving Reflex 4

hypothermia plays a critical role in patient survival during a cold-water immersion incident 3. However, the relationship between the two processes is still unclear. Because it is impossible to provide an exact reproduction of a particular drowning incident within the laboratory, research is hampered by the lack of complete details. Consequently, it is difficult to draw comparisons among published case studies.
The writer provides suggestions for future research.

More complete and accurate documentation of cold-water immersion incidents--including time of submersion; time of recovery; and a profile of the victim including age, sex, and physical condition--will facilitate easier comparison of individual situations and lead to a more complete knowledge of the processes affecting long-term survival rates for drowning victims. Once we have a clearer understanding of the relationship between hypothermia and the MDR--and of the effect of such factors as the age of the victim--physicians and rescue personnel can take steps to improve patient care at the scene and in the hospital.

With permission, the writer acknowledges people who helped with the paper.

ACKNOWLEDGMENTS I would like to thank V. McMillan and D. Huerta for their support and suggestions throughout the research and writing of this paper. I am also grateful to my classmates in Biology 281 for their thoughtful comments during writing workshops. Finally, I thank Colgate University's interlibrary loan staff for helping secure the sources I needed for this review.

Source: Diana Hacker (Boston: Bedford/St. Martin’s, 2007). Adapted from Victoria E. McMillan (Boston: Bedford/St. Martin’s, 2006).

Hypothermia and Diving Reflex 5

Cited References 1. Kallas HJ, O’Rourke PP. Drowning and immersion injuries in children. Curr Opin Pediatr. 1993;5(3):295-302. 2. Keatinge WR. Accidental immersion hypothermia and drowning. Practitioner 1997;219(1310):183-187. 3. Gooden BA. Why some people do not drown--hypothermia versus the diving response. Med J Aust. 1992;157(9):629-632. 4. Biggart MJ, Bohn DJ. Effect of hypothermia and cardiac arrest on outcome of near-drowning accidents in children. J Pediatr. 1999;117(2 Pt 1):179-183. 5. Gooden BA. Drowning and the diving reflex in man. Med J Aust. 1972;2(11):583-587. 6. Bierens JJ, van der Velde EA. Submersion in the Netherlands: prognostic indicators and the results of resuscitation. Ann Emerg Med. 1999;19(12):1390-1395. 7. Ramey CA, Ramey DN, Hayward JS. Dive response of children in relation to cold-water near drowning. J Appl Physiol. 1987;62(2):665-688.

The writer lists and numbers all sources in the order they appear in the paper.

Double-spacing is used throughout, with no extra spacing between entries. Authors’ last names are followed by first and middle initials. For a journal article, author’s initials are followed by the article title, abbreviated journal title, publication date, volume or issue number, and page numbers. For a book (not shown here) the author and title are followed by the publisher’s city, state, and name and the publicaton date (e.g., London: Academic Press; 2001.).

Source: Diana Hacker (Boston: Bedford/St. Martin’s, 2007). Adapted from Victoria E. McMillan (Boston: Bedford/St. Martin’s, 2006).…...

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