NR283 Discussions Latest 2021 June (Full)

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NR283 Pathophysiology

Week 1 Discussion

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Mrs. A

The initial post must include responses to all the questions in this discussion.

Ms. A, age 35, was given a Pap test during a routine medical checkup. The test showed marked dysplasia of cervical cells but no sign of infection.

Discuss the purposes and uses of diagnostic testing and how it applies in this scenario.

Discuss how the following terms might apply to this scenario: prognosis, latent stage, remission, exacerbations, predisposing factors.

Compare and contrast the various types of common cellular adaptations, focusing on dysplasia and the testing for this condition.

Mrs. A’s baby girl, Baby C, who is 3 months old, has had severe watery diarrhea accompanied by fever for 24 hours. She is apathetic and responds weakly to stimulation. The condition has been diagnosed as viral gastroenteritis.

List the major losses resulting from diarrhea and fever.

List other signs or data that would provide helpful information.

Explain several reasons why infants become dehydrated very quickly.

Baby C was tested for PKU shortly after birth (as required by law), the results indicated toxic levels of phenylalanine breakdown products in the blood.

Explain how dietary changes can affect the expression of PKU.

Discuss the cause of the disease and the probable percentages of inheritance of the disease in children the couple might have in the future.

Weekly Outcomes

Weekly Objectives

  1. Relate alterations in structure and function of cells and tissue development. (CO 1)
  2. Trace the impact of alterations in defense mechanisms on homeostasis. (CO 2)
  3. Summarize the impact of altered defenses on the individual. (CO 3)
  1. Describe steps to achieve success in the course.
  2. Introduce pathophysiologic concepts and principles.
  3. Understand and use medical terminology when discussing pathophysiologic conditions.
  4. Discuss normal cell and tissue development and disease progression.
  5. Explain carcinogenesis, risk factors, stages of tumor development, and preventive strategies.
  6. Describe the process of cellular development and alterations based on external environmental and genetic factors.
  7. Explain how fluids and electrolytes are used by the body to adapt and maintain physiologic homeostasis.
  8. Apply growth and development principles as they relate to the impact of aging on normal pathophysiologic changes.
  9. Discuss the role genetics and aging plays in the process of cellular adaptation, mutation, and dysplasia.

Main Topics and Concepts

Sub-Concepts with Exemplar

  1. Introduction to Pathophysiology
  2. Fluid Electrolyte and Acid-Base Imbalances
  3. Alterations in Cell and Tissue Development
    1. Cellular Adaptation
    2. Cellular Injury
    3. Cellular Response to Aging
    4. Genetic Influences
  4. Neoplasms and Cancer
  5. Congenital and Genetic Disorders
    1. Pathological processes in structure and function
    2. Cancers and Genetic Influences
  1. Fluid and Electrolyte Imbalance: Dehydration
  2. Acid-Base Balance: Buffering Systems for Respiratory Versus Metabolic Imbalances
  3. Cellular Adaptation: Cellular dysplasia, hyperplasia, and injury
  4. Genetic Disorders: Cystic Fibrosis
  5. Growth and Development: Congenital Disorders
  6. Health Promotion: Primary, Secondary, and Tertiary Prevention

 

 

NR283 Pathophysiology

Week 2 Discussion

J.L

The initial post must include responses to all the questions in this discussion.

JL, a 50-year-old woman, was camping with her 3 children and spouse, fell and broke the left tibia at the ankle. She is in the emergency department, waiting for the fracture to be immobilized. The leg hurts and she note that the ankle is swelling. A diagnosis of a simple fracture and sprain (damage to ligaments) is made.

Discussion Questions

What is the cause of pain and swelling? What can JL expect in the days to come as inflammation resolves and healing begins?

What is the rationale for immobilizing the fractured bone?

JL’s son Matt, age 10 years, has a runny nose and itchy eyes and is irritable. The camping tent was set up in a grassy field, and the boys played several games on the field. Matt is also seen by a health care provider and a diagnosis of allergy to pollen is made.

Explain the rationale for each of Matt’s symptoms.

Identify the type of immune response involved.

Discuss what Matt can expect in the future.

Weekly Outcomes

Weekly Objectives

  1. Explore alterations in structure and function of defense mechanisms. (COs 1 and 3)
  2. Trace the impact of alterations in defense mechanisms on homeostasis. (CO 2)
  3. Summarize the impact of altered defenses on the individual. (CO 3)
  1. Understand inflammation, healing, infection, immunity, and neoplasms and cancer.
  2. Apply growth and development principles as they relate to the impact of aging on the pathophysiologic changes.
  3. Compare and contrast processes of inflammatory and healing processes, alterations in immune responses, and pathological processes of the immune system.
  4. Apply understanding of alterations in inflammatory and healing processes and across the lifespan to formulate care priorities.
  5. Describe how genetics influence pathophysiological alterations in healing, immunologic responses, and integumentary system.
  6. Explain carcinogenesis, risk factors, stages of tumor development, and preventive strategies.

Main Topics and Concepts

Sub-Concepts with Exemplar

  1. Alterations in inflammation and healing processes
  2. Environmental influences on lines of defense
  3. Alterations in immunity and immune responses
    1. Neoplasms and cancer
    2. Stress and associated problems
  1. Cellular adaptation: squamous cell carcinoma, malignant melanoma, and Kaposi’s sarcoma
  2. Fluids and electrolytes: dehydration and age considerations across the lifespan
  3. Immunity: inflammatory skin disorders
  4. Infection: wounds; abscess; viral and fungal; respiratory
  5. Inflammation: acute and chronic conditions
  6. Metabolism: negative nitrogen balance and protein deficiencies
  7. Mobility and immobility: age, pain, cancer; fractures and osteoarthritis
  8. Nutrition: vitamin deficiencies; anorexia
  9. Oxygenation: anemia and hemoglobin and hematocrit levels
  10. Perfusion: diabetes mellitus and atherosclerosis
  11. Sensory perception: cataracts

 

NR283 Pathophysiology

Week 3 Discussion

Skin and Respiratory System Disorders

The initial post must include responses to all the questions in this discussion.

Mr. J, age 42, is a construction worker in Las Vegas who lives with his daughter and grandson, Sammy. He recently noticed that a mole on his face seemed to be getting larger and darker. At first, he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. After a month, not only was the mole larger and darker, but it appeared to be “bumpy.” His doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. Mr. J reports pain in his right shin that does not go away when he puts his feet up or sleeps.

Discussion Questions

Relate Mr. J’s skin changes to the warning signs for malignant melanoma.

Discuss the normal progression of this malignancy. What is the significance of the bone pain that Mr. J is experiencing?

Discuss the treatment available for this patient and the prognosis for recovery.

Discussion Questions

Mr. J is babysitting his grandson Sammy, age 3 years, who ate his dinner and then said his tummy hurt. Mr. J suggested he lie down in the adjacent room while his parents finished dinner. A few minutes later, Mr. J heard Sammy vomiting. He rushed in to lift Sammy up. When vomiting ceased, he noticed Sammy continued to cough and seemed to be choking. He was struggling to breathe, and a wheezing sound was obvious. It appeared that he had aspirated some vomitus. Mr. J drove him to a nearby hospital for examination.

Discuss the specific effects of aspirating vomitus on Sammy, including the probable effects on his bronchi and lungs. Why might one lung be affected more than the other?

Discuss the pathophysiologic changes causing the signs and symptoms and any tests required to clarify the effects on Sammy.

Suggest some reasons for Sammy’s difficulty breathing and wheezing.

Discuss the potential complications of aspiration of vomitus.

Weekly Outcomes

Weekly Objectives

  1. Articulate alterations in structure and function of the respiratory and integumentary systems. (CO 1)
  2. Trace the impact that alterations in the respiratory and integumentary systems have on the body. (CO 2)
  3. Summarize the impact of alterations in the respiratory and integumentary systems on homeostasis. (CO 3)
  1. Understand normal respiratory and integumentary system disorders.
  2. Compare and contrast common respiratory and integumentary disorders: causes, clinical manifestations, diagnostic tests, and treatments.
  3. Apply understanding of alterations in respiratory and integumentary systems across the lifespan to formulate care priorities.
  4. Examine responses to aging and its impact on pathophysiologic changes in the respiratory and integumentary systems.
  5. Describe how heredity and genetics influence pathophysiological alterations in the cardiovascular and integumentary systems.
  6. Examine factors leading to cancers of the respiratory and integumentary systems.

Main Topics and Concepts

Sub-Concepts with Exemplar

  1. Alterations in the respiratory system: Oxygenation
     

    1. Pathological processes in structures and functions
    2. Cancers of the respiratory system
    3. Pathophysiologic respiratory system response to aging
    4. Genetic influences on respiratory system pathology
  2. Alterations in the integumentary system (skin disorders)
     

    1. Pathological processes of the integumentary system
    2. Cancers of the integumentary system
    3. Genetic influences on the integumentary system
  1. Oxygenation: Upper (Infectious Rhinitis) respiratory condition; Lower respiratory conditions (Pneumonias); atelectasis; pneumothorax
  2. Genetics: Cystic fibrosis and congenital heart defects/anomalies
  3. Acid-Base Imbalance: Arterial blood gases
  4. Acute versus Chronic conditions: Infant Respiratory Distress Syndrome (IRDS), Adult Respiratory Distress Syndrome (ARDS), and Asthma (single episode), Chronic Obstructive Pulmonary Disease (COPD)
  5. Cellular adaptation: Lung cancer
  6. Immunity: Inflammatory skin disorders
  7. Infection: wounds; abscess; viral and fungal rashes
  8. Inflammation: skin infection; skin irritation

 

NR283 Pathophysiology

Week 4 Discussion

Mr. X

The initial post must include responses to all the questions in both case studies.

Mr. X, age 57, presented to his physician with marked fatigue, nausea with occasional diarrhea, and a sore, swollen tongue. Lately he also has been experiencing a tingling feeling in his toes and a feeling of clumsiness. Microscopic examination of a blood sample indicated a reduced number of erythrocytes, many of which are megaloblasts, and a reduced number of leukocytes, including many large, hypersegmented cells. Hemoglobin and serum levels of vitamin B12 were below normal. Additional tests confirm pernicious anemia.

Discussion Questions

Relate the pathophysiology of pernicious anemia to the manifestations listed above.

Discuss how the gastric abnormalities contribute to vitamin B12 and iron deficiency and how vitamin B12 deficiency causes complications associated with pernicious anemia.

Discuss other tests that could be performed to diagnose this type of anemia.

Discuss the treatment available and the limitations.

Ms. L, a 19-year-old woman with no previous medical history, was involved in a serious automobile accident in which her best friend died. Examination by EMT personnel first on the scene revealed she had only minor scrapes and bruises and no sign of head trauma. While en route by ambulance to the hospital, Ms. L complained of thirst and appeared restless. Further examination indicated a rapid pulse and respirations, with her blood pressure now at 100/60 mm Hg. She appeared less responsive to the paramedics. She was slipping into circulatory shock as they checked her again for internal injuries.

Discussion Questions

Discuss the contributing factors to shock in this case and the pathophysiologic changes causing the changes in vital signs.

Discuss the signs and symptoms of shock, including the rationale for each, as seen in the early stage, and as compensation mechanisms respond.

Discuss emergency and follow-up treatment for shock and for complications that may arise if not treated quickly.

Compare the types of shock, giving a specific cause, classification, and any significant changes in onset or manifestations.

Weekly Outcomes

Weekly Objectives

  1. Articulate alterations in structure and function of the cardiovascular and hematologic systems. (CO 1)
  2. Trace the impact that alterations in the cardiovascular and hematologic systems have on the body. (CO 2)
  3. Summarize the impact of alterations in the cardiovascular and hematologic systems on homeostasis. (CO 3)
  1. Understand normal cardiovascular system disorders.
  2. Compare and contrast common cardiovascular conditions: causes, clinical manifestations, diagnostic tests, and treatments.
  3. Apply understanding of alterations in and cardiovascular systems across the lifespan to formulate care priorities.
  4. Examine responses to aging and its impact on pathophysiologic changes in the cardiovascular system.
  5. Describe how heredity and genetics influence pathophysiological alterations in the cardiovascular system.
  6. Understand hematologic response to illness and injury.
  7. Examine factors leading to cancers of the hematologic system.
  8. Compare and contrast common types of anemias: causes, clinical manifestations, diagnostic tests, and treatments.
  9. Apply understanding of alterations in the hematologic system across the lifespan to formulate care priorities.
  10. Apply growth and development principles as they relate to the impact of aging on pathophysiologic changes.
  11. Describe how genetics influence pathophysiological alterations in the hematologic system.

Main Topics and Concepts

Sub-Concepts with Exemplar

  1. Alterations in the cardiovascular system: perfusion
    1. Alterations in physical structures and functions
    2. Alterations in cardiac system function
    3. Pathophysiologic cardiovascular system response to aging
    4. Congenital and genetic influences on cardiovascular system pathology
  2. Alterations in the hematology system
    1. Hematologic response to illness and injury
    2. Cancers of the hematologic system
    3. Pathophysiologic hematologic system response to aging
    4. Genetic influences on hematologic system pathology
  1. Fluid imbalances: pulmonary edema; congestive heart failure
  2. Metabolism: metabolic syndrome
  3. Perfusion: pulmonary embolism; heart disease; hypertension; venous versus arteriole disorders; and shock states
  4. Aging process: chronic leukemia
  5. Acute versus chronic conditions
  6. Cellular adaptation: acute leukemia
  7. Perfusion: polycythemia
  8. Oxygenation: anemias and hemoglobin and hematocrit levels
  9. Genetics: hemophilia A, chronic myeloid leukemia (CML)
  10. Injury: disseminated intravascular coagulation (DIC)

 

 

NR283 Pathophysiology

Week 5 Discussion

Mrs. F.

The initial post must include responses to all the questions in both case studies.

Ms. F, 48 years old, has been admitted to the hospital with severe abdominal pain. Earlier that day she had generalized abdominal pain, followed by a severe pain in the lower right quadrant of her abdomen, accompanied by nausea and vomiting. That evening she was feeling slightly improved and the pain seemed to subside somewhat. Later that night, severe, steady abdominal pain developed, with vomiting. A friend took her to the hospital, where examination demonstrated lower right quadrant tenderness and mild abdominal rigidity. Fever and leukocytosis indicated infection. A diagnosis of acute appendicitis, with possible perforation, was indicated, with immediate surgery.

Discussion Questions

Why is the sequence of pain (location and type of pain) significant in the diagnosis of acute appendicitis? Describe the rational for each type of pain. Does this sequence confirm the diagnosis?

Using the pathophysiology, describe the reason for:

the pain subsiding and then recurring.

leukocytosis and fever.

abdominal rigidity.

Ms. T, age 28 years, has noticed urgency, frequency, and dysuria recently, as well as an unusual odor to the urine. Urinalysis indicated a heavy concentration of Escherichia coli in the urine, some pus, and WBCs. Ms. T was prescribed antibiotics, which she took for the first few days. This seemed to give her relief, but she then stopped taking the medication. Within a few days, the symptoms returned, but she decided to “just live with it.”

Discussion Questions

Explain why women are predisposed to cystitis.

What preventive measures are important in reducing recurrence?

Discuss other signs and symptoms that may indicate cystitis.

What potential problems may she experience if she does not adhere to the treatment prescribed?

Weekly Outcomes

Weekly Objectives

  1. Articulate alterations in structure and function of the renal and digestive systems. (CO 1)
  2. Trace the impact that alterations in the renal and digestive systems have on the body. (CO 2)
  3. Summarize the impact of alterations in the renal and digestive systems on homeostasis. (CO 3)
  1. Understand normal renal and digestive system physiology.
  2. Describe common types of renal disorders: causes, clinical manifestations, diagnostic tests, and treatments.
  3. Compare and contrast common renal conditions: causes, clinical manifestations, diagnostic tests, and treatments.
  4. Apply understanding of alterations in the renal and digestive system across the lifespan to formulate care priorities.
  5. Discuss the renal system’s role in acid-base balance.
  6. Review the renal systems function in fluid and electrolyte homeostasis
  7. Examine responses to aging and its impact on pathophysiologic changes in the renal and digestive systems.
  8. Describe how heredity and genetics influence pathophysiological alterations in the renal and digestive systems.

Main Topics and Concepts

Sub-Concepts with Exemplar

  1. Alterations in the renal and urologic system: elimination
    1. Alterations in physical structure
    2. Alterations in function
    3. Cancers of the renal and urinary tract systems
    4. Pathophysiologic renal and urologic response to aging
    5. Genetic influences on renal and urologic system pathology
  2. Alterations in the gastrointestinal system: elimination
    1. Alterations in physical structures
    2. Alterations in function
    3. Cancers of the gastrointestinal system
    4. Pathophysiologic gastrointestinal response to aging
    5. Genetic influences on gastrointestinal system pathology
  1. Acid-base imbalance: urinalysis, blood testing
    1. Acute versus chronic conditions
    2. Renal failure
  2. Constipation
  3. Cellular regulation: colon cancer
  4. Fluid imbalances: dialysis
  5. Metabolism: digestion and absorption, liver disease
  6. Elimination: diarrhea, constipation, irritable bowel syndrome, renal calculi
  7. Nutrition: nausea, vomiting, celiac disease
  8. Tissue Integrity: peptic ulcer disease, gastritis
  9. Infection: pyelonephritis, urinary tract infection, hepatitis C
  10. Genetics: polycystic kidney disease, colon polyps

 

 

 

 

 

NR283 Pathophysiology

Week 6 Discussion

Mrs. A

The initial post must include responses to all the questions in both case studies.

Mrs. A has been taking high doses of glucocorticoids for much of the past 2 years to control severe rheumatoid arthritis. She has now developed hypertension and type 2 diabetes and would like to stop taking the cortisone because of the unwanted changes in her appearance.

Discussion Questions

How does Cushing’s syndrome affect the individual?

Discuss how hypertension and diabetes have developed and the potential complications of these conditions.

Discuss other potential problems that Mrs. A may experience resulting from long-term use of glucocorticoids.

Mrs. L is a 63-year-old woman who reports constant back pain. Further inquiry into her medical history revealed that over the past 3 years, she has suffered fractures of her femur and wrist after minor falls. She experienced menopause at age 49. Mrs. L has a secretarial job, drives to work, and she “does not have time for exercise.” She reports that she consumes 8 to 10 cups of coffee a day and has been a smoker most of her adult life. She has not seen her physician recently nor had a recommended bone density test because of the time and cost involved.

Discussion Questions

Relate Mrs. L’s history to the diagnosis of osteoporosis. What risk factors are present, and how does each predispose to decreased bone density?

Explain the cause of pathological fractures in this patient.

How could osteoporosis have been prevented in Mrs. L?

Discuss the treatments available to the patient.

Weekly Outcomes

Weekly Objectives

  1. Articulate alterations in structure and function of the endocrine and musculoskeletal systems. (CO 1)
  2. Trace the impact that alterations in the endocrine and musculoskeletal systems have on the body. (CO 2)
  3. Summarize the impact of alterations in the endocrine and musculoskeletal systems on homeostasis. (CO 3)
  1. Understand normal endocrine and musculoskeletal system physiology.
  2. Describe common types of endocrine and musculoskeletal system disorders: causes, clinical manifestations, diagnostic tests, and treatments.
  3. Compare and contrast common endocrine and musculoskeletal conditions: causes, clinical manifestations, diagnostic tests, and treatments.
  4. Apply understanding of alterations in the endocrine and musculoskeletal system across the lifespan to formulate care priorities.
  5. Review the musculoskeletal systems function in bone formation, degradation, and homeostasis.
  6. Examine responses to aging and its impact on pathophysiologic changes in the endocrine and musculoskeletal systems.
  7. Describe how heredity and genetics influence pathophysiological alterations in the endocrine and musculoskeletal systems.

Main Topics and Concepts

Sub-Concepts with Exemplar

  1. Alterations in the endocrine system
    1. Alterations in physical structures
    2. Alterations in function
    3. Cancers of the endocrine system
    4. Pathophysiologic endocrine response to aging
    5. Genetic influences on endocrine system pathology
  2. Alterations in musculoskeletal system
    1. Alterations in physical structures
    2. Alterations in function
    3. Cancers of the musculoskeletal system
    4. Pathophysiologic musculoskeletal response to aging
    5. Genetic influences on musculoskeletal system pathology
  1. Acid-base imbalance: diabetic ketoacidosis
  2. Acute versus chronic conditions
    1. Thyroid storm
    2. Hyperthyroidism
  3. Cellular regulation: bone degeneration and regeneration
  4. Fluid and electrolyte imbalances: posterior pituitary gland disorders
  5. Pain: osteoarthritis
  6. Functional mobility: muscular dystrophy
  7. Glucose regulation: Cushing’s syndrome
  8. Tissue integrity: diabetic foot ulceration
  9. Inflammation: Hashimoto’s thyroiditis
  10. Genetics: osteoporosis

 

NR283 Pathophysiology

Week 7 Discussion

A

The initial post must include responses to all the questions in both case studies.

A 28-year-old soldier returns from Iraq and begins experiencing periodic bouts of anxiety. She complains that she wakes up frequently and cannot get a full night of sleep. Recently, she also has been getting frequent headaches and noticed a few ulcers in her mouth. A physical examination and lab tests do not reveal any local or systemic disease.

Discussion Questions

Based on the patient history and the signs and symptoms, discuss how stress is related to her condition.

Discuss other stress-related problems that this patient might experience if her coping strategies are not effective.

Discuss the potential strategies for coping with the stress.

Mr. K is a 32-year-old man who was found in his apartment at 2 AM, babbling incoherently and apparently experiencing hallucinations. His friends report that he had been to a party that night and, since the recent breakup of his marriage and loss of his job, he tends to overdo it at social events. They report that during the evening, he consumed very little alcohol but did take a small pill given to him by another partygoer. Paramedics could find no puncture marks and no powder in or around the nose, but his blood pressure was elevated, as was his body temperature. He appeared dehydrated and agitated.

Discussion Questions

Based on patient history, reports from his friends, and the signs and symptoms noted by the paramedics, identify substances that Mr. K might have consumed.

Based on patient history, discuss the social factors that predisposed him to substance abuse.

Discuss any additional problems that he might encounter if he continues his present course of substance abuse.

Weekly Outcomes

Weekly Objectives

  1. Articulate alterations in structure and function of the neurosensory system. (CO 1)
  2. Trace the impact that alterations in the neurosensory system have on the body. (CO 2)
  3. Summarize the impact of alterations in the neurosensory system on homeostasis. (CO 3)
  1. Understand normal neurosensory system physiology.
  2. Describe common types of neurosensory disorders: causes, clinical manifestations, diagnostic tests, and treatments.
  3. Compare and contrast common neurosensory conditions: causes, clinical manifestations, diagnostic tests, and treatments.
  4. Apply understanding of alterations in the neurosensory system across the lifespan to formulate care priorities.
  5. Review the neurosensory systems function in pain creation and management.
  6. Examine responses to aging and its impact on pathophysiologic changes in the neurosensory system.
  7. Discuss neurosensory changes in the elderly and its effects on lifestyle.
  8. Describe how heredity and genetics influence pathophysiological alterations in the neurosensory system.

Main Topics and Concepts

Subconcepts With Exemplar

  1. Alterations in nervous system
    1. Alte

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