©ACU XXXXXXXXXX BIOL121 ASSIGNMENT 3: Written assessment Due date: Friday 16/10/2020 4.00pm Weighting: 30% Length and/or format: 1500-word written essay Purpose: The case study essay allows you to...

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The assessment is to write an essay on a case study answering the questions. All the details is on the documents I have attached. also, please use the template I have attached for the essay.


©ACU 2020 1 BIOL121 ASSIGNMENT 3: Written assessment Due date: Friday 16/10/2020 4.00pm Weighting: 30% Length and/or format: 1500-word written essay Purpose: The case study essay allows you to demonstrate your integrated knowledge of the anatomical and physiological workings of the healthy human body. Instructions: Choose ONE of the three case studies provided. Carefully read all materials provided for your chosen case study. Use the Word template provided to complete your essay on your chosen case study. You will need to research the topic beyond your lecture and workshop material. It is highly recommended that you start with the textbook. Include in text citations in your essay and a reference list at the end. How to submit: Submit online through the Turnitin link provided on LEO. For submission please name the file with your student number and case study topic e.g. S00123456_JANE Important to note: You MUST write an essay and your answers MUST relate to the person in your chosen case study • This assessment involves addressing a series of generic questions in the form of an essay. The questions relate directly to the case studies presented. • All of your answers must be specific for the person in the case study, marks will not be given where your essay does not relate to the person in the case study. • The answers to the questions in the case study must be integrated into an essay, which should include an appropriate introduction and conclusion. • You can present the information in the order that you feel flows best; you don’t have to present it in the order of the questions. • Your answers must be incorporated into sentences and paragraphs that include facts from the case study. If presented in question-answer style no marks will be given for quality of essay. The purpose of this assessment is for you to demonstrate your knowledge and understanding of NORMAL anatomy and physiology. • Do not become distracted describing pathophysiological changes • Do not simply list clinical signs and symptoms. • Ensure you adequately explain relevant underlying anatomy and physiology. ©ACU 2020 2 Case Study: Stuart Stuart is a 72yo male who lives alone since his partner died 2 years ago. He has come to see his GP today as he has had several episodes where he has felt faint, and “may even have passed out on a couple of occasions”. It is some time since Stuart attended the clinic and you note when weighing him that he has lost a significant amount of weight, and he doesn’t present as the robust active older person that you remember. He mentions that he doesn’t cook much and relies on the take-away shop around the corner for most of his food these days. He explains that he has been very lonely since he lost his partner but is excited to reveal a new zest for life now that he has met a new friend, with whom he recently travelled to Cusco, Peru (3400 m above sea level). While he thoroughly enjoyed the trip, he did mention he found it more difficult than normal to breathe there. His relationship has developed sexually, but he has had some difficulty performing. Stuart thought it was his prostate giving him trouble, but with urging from his new partner he bought some Viagra nasal spray over the internet. Physical examination: Height 178 cm Weight 70 kg Appearance Clean, dry skin, thin, significant muscle wastage Temperature 37.6◦C Blood work Blood type = A+ Plasminogen levels are low HR 80 bpm BP 105/66 mm Hg Respiratory rate 22 bpm Diet Low fibre, high fat Past patient history Mobility issues due to osteoarthritis, was hypertensive for many years, aspirin in morning. Previous history of hepatitis. Social status Living at home, lonely, lately has occasional sexual contact Urinalysis: Blood - Bilirubin - Urobilinogen 0.1 Ketone +++ Protein + Nitrite - Glucose + pH 6.0 Specific Gravity 1.015 Leucocytes + ©ACU 2020 3 Guiding Questions Question 1 (8 marks total) A. Describe the changes in volume and pressure that will be occurring in Stuart’s chest cavity to achieve inhalation at rest. Explain why these changes are occurring, and the effect upon airflow B. Describe the gas exchange occurring between air in Stuart’s alveolar air and pulmonary blood. Would the rate of gas exchange have changed when Stuart was in Cusco at high altitude? Explain your answer. Question 2 (8 marks total) A. Which ANS response would you expect to dominate after Stuart has had a large bowl of pasta for lunch? Explain your answer. B. Which hormone associated with glucose homeostasis would you expect to be most active during this ANS response? Why? Using your knowledge of glucose homeostasis, explain your answer. Question 3 (8 marks total) A. Describe the role of the kidneys in maintaining fluid balance with reference to the role of antidiuretic hormone (ADH). Is Stuart at risk of not maintaining homeostatic fluid mechanisms? Why/why not? B. What is a urinalysis and what is its significance for this case? With respect to the glucose component of Stuart’s urinalysis result, and using your knowledge of normal kidney function, would you expect this result? Why/why not? Question 4 (8 marks total) A. Consider Stuart’s blood pressure result and discuss whether the mean arterial pressure is likely to be varied from normal. In your answer you must include reference to a change in vessel diameter with age and briefly mention the consequences of any change in BP upon kidney function. B. In this circumstance, do you think the renin-angiotensin-aldosterone system or natriuretic peptides will dominate in the maintenance of Stuart’s blood pressure. Discuss the role of your chosen system in blood pressure homeostasis to explain your answer. Question 5 (8 marks total) A. Stuart is considering knee replacement surgery as a result of his osteoarthritis. If, during the surgery, Stuart suffered a significant haemorrhage and required a blood transfusion, which blood type(s) could be safely administered? Explain the potential consequences if Stuart was administered B- blood. B. Stuart has been found to have low plasminogen levels. How would this effect the ability of his blood to clot? Explain your answer. BIOL121 Semester 2, 2020 Assessment 3: Written assessment (Case study essay) Student name Student number Topic Word count (excluding reference list) Type your essay here. · Remember to include an introduction and conclusion to your essay. · Your responses should NOT be in a question-answer format. · Don’t forget to include in-text citations in APA 7th edition format. References · Include your reference list (with appropriate APA 7th edition formatting) here. · If you require assistance with APA referencing conventions, please refer to the Academic Skills Unit LEO site. Leave this table here to allow staff to indicate the level your work has reached ©ACU 20202 85-100% 75-84.5% 65-74.5% 50-64.5% 0-49.5% Mark Content coverage and accuracy of answers (40 marks) Very extensive explanations and exceptional accuracy on each question of the case study. (34-40 marks) High level of accuracy with minor omissions in some questions. (30-33.5 marks) Some omissions and lapses of accuracy, perhaps in the more complex areas of the questions on the case study. These would normally require some revision. (26-29.5 marks) Some major omissions and significant errors of facts or misinterpretations of core concepts on the questions of the case study. Material requires significant revision. (20-25.5 marks) Serious omissions and errors of facts or misinterpretations of core concepts on the questions of the case study. Material requires extensive revision. (0-19.5 marks) Quality of written communication (10 marks) Accurate and concise scientific language and terminology used throughout. Minimal to no errors in grammar, syntax and spelling. Essay is consistently structured in a clear and logical manner that is easy to read. (8.5-10 marks) Accurate and concise scientific language and terminology used throughout. Few errors in grammar, syntax and spelling. Overall, essay is structured in a clear and logical manner that is easy to read. (7.5-8 marks) Mostly accurate and concise scientific language and terminology used throughout. Some errors in grammar, syntax and spelling. Essay is mostly structured in a clear and logical manner that is easy to read. (6.5-7 marks) Some accurate scientific language and terminology was used, some was inaccurate and unclear. Many errors in grammar, syntax and spelling. Aspects of essay structure are clear, logical and easy to read. (5-6 marks) Answers to questions not converted to essay style and/or limited or no scientific language and terminology was used. Errors in grammar, syntax and spelling that detract from meaning. Essay is poorly organized with illogical flow of ideas and difficult to read. (0-4.5 marks) Mark Deductions 0 marks (no deductions) -1 mark -2.5 marks -5 marks APA referencing conventions In-text citations are present and appropriate. Reference list includes fully accurate information about all sources used. All formatting as per APA 7th edition conventions. All sources are reputable and current (as appropriate). Minimum of 5 sources cited. In text citations used. Reference list includes accurate and sufficient source information. Minor errors in APA formatting. Use of some less reliable and/or current sources. Less than 5 sources. No in-text citations used. Reference list does not include all necessary information about sources used. Persistent errors in APA formatting. Use of some less reliable and/or current sources. Less than 5 sources. No in-text citations used. No reference list or does not provide sufficient information about sources used. Serious errors in APA formatting. Poor quality sources and/or less than 5 sources. Word Count Essay response, including in-text citations (but excluding reference list), is between 1000 and 1500 words No deductions Essay response, including in-text citations, is between 1500 and 1600 words. Essay
Answered Same DayOct 01, 2021BIOL121

Answer To: ©ACU XXXXXXXXXX BIOL121 ASSIGNMENT 3: Written assessment Due date: Friday 16/10/2020 4.00pm...

Anju Lata answered on Oct 05 2021
146 Votes
BIOL121Semester 2, 2020
Assessment 3: Written assessment (Case study essay)
    Student name
    
    Student number
    
    Topic
    
    Word count
(excluding reference list)
    
    Introduction
Stuart is 72 year old man who reported for multiple episodes of getting faint. He also has lost lot of weight. He has been living alone since 2 years when his partner had died. He had recently travelled to Peru (3400 m above sea
level) with his new friend. During the trip he found it difficult than normal to breathe. His physical examination reports Blood Group A+ with low plasminogen level and a low BP of 105/66 mmHg. The urinalysis shows high level of ketone, protein , glucose and leukocytes in the urine. The assessment involves detailed analysis of this case study while answering the specific questions.
Change in Volume and Pressure
As Stuart had visited a high altitude place recently, he would be facing forced inspiration and expiration to achieve inhalation at rest. At high altitudes, the atmospheric pressure is less. At altitudes above 3000 m, the person may experience hypoxia and acute mountain sickness (AMS) which includes nausea, shortness of breath, headache and dizziness. Due to reduced arterial pressure of oxygen, the lungs show elevated heart rate, acclimatization and hyperventilation to achieve sufficient oxygen supply for the tissues. These changes occur due to increase in tidal volume due to ventilation. The lung volume reduces due to accumulation of extravascular fluid in pulmonary interstitium. At high altitude, there is low oxygen saturation level and less oxygen is available in the airflow.
The gas exchange at high altitude with little oxygen and reduced blood flow causes increased elevated ventilation and alveolar dead spaces. The diffusion of inhaled oxygen in the pulmonary capillary blood is reduced due to decreased pressure of alveolar oxygen at high altitude (Wagner, 2015). It may cause failure of equilibrium.
After consuming a bowl of pasta, the parasympathetic division of Autonomic Nervous System (ANS) will regulate the digestion. It will increase the peristalsis and enable secretion by digestive glands. Ghrelin suppression gives feedback signal to brain for stopping eating (Guarino, Nannipieri, Iervasi, et al, 2017).This mechanism helps in reducing the calorie intake. The gastrointestinal tract also releases Peptide-YY and GLP-1 hormones in response to meal size after the meal intake. There hormones regulate satiety and induce taste aversion.
The glucagon and insulin hormones produced by pancreas would regulate the blood glucose level. The insulin would control the glucose uptake by different cells of the body and the glucagon would regulate the release of glucose from the body. The glucose homeostasis involves a balance of insulin and glucagon to maintain appropriate blood glucose levels. If the level of any one hormone is more or less, the blood sugar level may increase or decrease. The insulin helps in glucose absorption of cells, lower down the blood sugar and gives energy to the cells with glucose (Röder, Wu, Liu & Han, 2016). In case the blood sugar levels are low, the glucagon is released by pancreas. The glucagon stimulates the liver to release the excessive glucose, which elevates the blood sugar.
Role of Kidneys
Kidneys maintain fluid balance by adjusting the urine concentration as per the water needs of the body (Chapin & Hajjar, 2015). Kidneys conserve the water when the body is dehydrated and excretes excess water by making it more dilute. The ADH hormone helps in water retention of body and stimulates the reabsorption of water by kidneys (Cuzzo, Padala & Lappin, 2020). It controls the osmotic balance, kidney functioning and regulation of Blood pressure.
The urinalysis report of Stuart show positive glucose in urine. It shows the blood glucose level is very high and hence some glucose is appearing in urine. It shows Stuart is at risk of maintaining homeostatic fluid mechanics.
Urinalysis is a clinical test of urine. It can detect certain diseases like kidney disease, diabetes and liver disease at an early stage. In this case, Stuart faced...
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