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Introduction to Case Study

Key Words: Aboriginal , Atrial Fibrillation , Cardiovascular-Conduction , Endocrine System , Foot Ulcer , Heart , Indigenous, Occupational Illness and Disease, Pancreas, Peripheral Circulation, Peripheral Neuropathy, Post-Traumatic Stress Disorder (PTSD) , Residential Schools , Type II Diabetes, Type II Diabetes, Heart Failure, Liver Cancer, ISBAR, CPR, Cardiac Rehabilitation, Wound swab, Nursing Management in Radiation Therapy

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Multi-Course Case Studies in Health Sciences

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Case

Disease

Slide #

PART A

Type II Diabetes Mellitus

9 - 25

PART B

Diabetic Foot Ulcer

26 - 34

PART C

Atrial Fibrillation

35 - 43

PART D

Heart Failure

44 - 56

PART E

Liver Cancer

57 - 66

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Medlab

Case

Slide Number

Part A: Type II Diabetes Mellitus

16 - 21

Part B: Diabetic Foot Ulcer

30, 31

Nursing

Case

Slide Number

Part B: Diabetic Foot Ulcer

27, 28, 33

Part D: Heart Failure

49 - 54

Part E: Liver Cancer

66

Kin.

Case

Slide Number

Part D: Heart Failure

55, 56

Discipline Breakdown

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Meet Jack

  • Born 1946 to Ojibwe parents in Northern Ontario
  • Age 6 years, taken away to a Residential School
  • Given the name ‘Jack’ by the priests
  • Worked odd jobs, finally landing a job at a mine
  • Met and married Mary
  • Had two children, Phillip and Nancy

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Shingwauk Residential School – Sault Ste. Marie, ON

  • Owned & operated by The Anglican Church of Canada
  • Opened August 2nd, 1875
  • New school opened October 3rd, 1935 & housed 140 pupils
  • The school focused on teaching trades & agriculture

Jack was often subjected to:

  • Harsh discipline
  • Malnutrition
  • Poor health
  • Physical, emotional, and sexual abuse
  • Deliberate suppression of his culture & language

5

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Daily Schedule

6

5 am

Bell rings, students rise, wash, & dress

5:30 am

Breakfast, then prayers

6-9 am

Boys work on farm, girls in house

9-12 pm

School

12-1 pm

Lunch & recreation

1-3:30 pm

School

3:30-6 pm

Work on farm

6 pm

Dinner & prayers

Evening

In winter boys in school (summer, work on farm)

girls learn needlework

9 pm

Bedtime

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Residential Schools on Indigenous Health

  • Personal or familial residential school attendance is related to health in a multitude of ways
  • People who attended residential schools generally feel their health or quality of life has been negatively impacted

7

General Health

Physical Health

Mental health & emotional well-being

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Occupational Illness & Disease

  • Occupational health focused on the physical health – respiratory disease, the impact of noise, heat and vibration on the miners’ health

  • A significant number of miners are experiencing high levels of stress, anxiety, and depression (Centre for Research in Occupational Safety and Health)

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Jack’s Story Continues

  • Jack felt he had nothing to offer his children (Nancy & Phillip)
  • He had lost his ancestral heritage
  • He often took Nancy fishing & hunting
  • He attended his daughter’s sports events
  • Did not spend much time with Phillip
  • Worked hard to provide for his family
  • He loved his wife Mary, but often missed the family & culture he grew up with

9

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PART A: TYPE II DIABETES MELLITUS (TIIDM)

Before we talk about Jack’s health…

Signs & Symptoms of TIIDM can develop slowly:

10

Central Nervous System (CNS)

    • Increased thirst
    • Frequent urination
    • Increased hunger
    • Blurred vision

Immune

    • Slow healing
    • Frequent infections

Peripheral Nervous System (PNS)

    • Numbness or tingling
    • Areas of darkened skin

Other

    • Unintended weight loss
    • Fatigue

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Type II DM is the result of 2 interrelated problems:

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Insulin resistance

Insulin receptors are not responding to insulin

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How Insulin Works

Insulin is a hormone that comes from the pancreas & regulates how the body uses sugar in the following ways:

  • Sugar in the bloodstream triggers the pancreas to secrete insulin
  • Insulin circulates in the bloodstream, enabling sugar to enter the cells
  • The amount of sugar in the bloodstream drops
  • In response to this drop, the pancreas releases less insulin

12

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The Role of Glucose

13

When glucose levels are low, the liver breaks down stored glycogen into glucose

  • In TIIDM, sugar does not enter the cells, builds up in bloodstream Increasing release of insulin impairs cells
  • In TIDM, the immune system mistakenly destroys beta cells, leaving the body with little to no insulin

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Risk Factors

14

Which of these risk factors apply to Jack?

Weight

Family stress

Race & ethnicity

Blood lipid levels

Fat

Age

Inactivity

Prediabetes

Pregnancy-related risks

Polycystic ovary syndrome

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Back to Jack

  • Based on some of Jack’s symptoms and risk factors, he gets blood work done to assess his blood-glucose levels.
  • Jack worked hard to maintain the home that he has shared with his wife for almost 50 years.

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What affects blood-glucose levels?

Glucose concentration is affected by:

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  1. Which one of this may be a problem when performing glucose tests on Jack?
  2. Where would we use whole blood for glucose testing?

Interferences include:

  1. Which of these are preanalytical factors?
  2. Which of these are analytical factors

Hemolysis

Lipemia

Icterus

Acetaminophen

Collection time

Specimen transport & handling

Specimen type

Type of blood collected

Type of Analysis

Medlab

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More potential tests for Jack…

Diabetes can be diagnosed by:

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Fasting Blood Sugar

Random Blood Sugar + symptoms of diabetes

2 Hour Blood Sugar (2hPC)

Medlab

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Diabetes Diagnosis

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  1. If dipstick shows POSITIVE, what sugars are present?
  2. If dipstick shows NEGATIVE, what sugars are present?

Routine Urine Dipstick Testing

    • Normally NEGATIVE
    • Uses reaction VERY specific for GLUCOSE

Manual Benedict’s test

    • Done to determine which sugar is present
    • GLUOCOSE, GALACTOSE, LACTOSE, FRUCTOSE

Medlab

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Jack was diagnosed with TIIDM

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  • Jack was diagnosed just before he turned 50.
  • He now has to take short-acting insulin with meals.
  • Jack required insulin injections, because his meal planning, weight loss, exercise and prescribed medications did not achieve targeted blood glucose (sugar) levels.

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Prescribing Jack’s Insulin Mixture

  • For convenience, there are premixed rapid- and intermediate-acting insulin
  • The insulin will start to work as quickly as the fastest-acting insulin in the combination
  • It will peak when each type of insulin typically peaks, and lasts as long as the longest-acting insulin

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Examples include:

Humulin 30/70, Novolin ge 30/70

Humalog Mix 50

Humalog Mix 25

NovoMix 30

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Acute Crisis Situation�

21

Jack has not been in good control of his glucose levels since his wife Mary has been in the hospital. This puts him at risk for:

Characterized by glucose levels >35 mmol/L with NO ketoacidosis

Insulin levels prevent ketosis via lipolysis, but cannot prevent hyperglycemia & osmotic diuresis

FATAL if not treated!

Mortality rate: 10-20%

Hyperosmotic Nonketotic Hyperglycemia (HONK)

Hyperosmotic Hyperglycemic Nonketotic Syndrome (HNNS)

Medlab

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Over the last 5 years, Jack has been struggling with pain and numbness in his feet which has affected his ability to maintain his home.

�Jack started doing less and less as time went on due to the pain and numbness.

Jack suffers complications from his TIIDM

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Complications & Frequent Comorbidities

23

Autonomic Neuropathy

Eye damage

Kidney disease

Heart & blood vessel disease

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Complications & Frequent Comorbidities

24

Peripheral Neuropathy

Neuropathy in limbs

Nerve damage

Which of these complications are present in Jack’s case?

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Preventing diabetes

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PART B: Diabetic Foot Ulcer

Jack is found by his daughter unkempt, shortness of breath, limping slightly, and has a strange odor coming from him. Jack states he has not been eating or managing his blood sugars & insulin well.

He has not bathed since his wife went to hospital because he is unable to access the bathtub safely. His daughter Nancy, finds an open, oozing wound on Jack’s foot.

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Wagner Ulcer Classification System:

The most widely accepted classification system for diabetic foot ulcers and lesions is the Wagner ulcer classification system

Based on

Depth of penetration

Presence of osteomyelitis or gangrene

Extent of tissue necrosis

Nursing

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Wagner Ulcer Classification System:

28

5

Extensive gangrenous involvement of the entire foot

4

Gangrene in a portion of forefoot or heel

3

Deeper tissues involved, with abscess, osteomyelitis or tendonitis

2

Deeper ulcer reaching tendon, bone, or joint capsule

1

Superficial ulcer without penetration to deeper layers

0

No open lesions

May have healed lesion

Nursing

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Causes of Diabetic Foot Ulcers

29

Poor circulation

Inappropriate footwear

Nerve damage

Hyperglycemia

Irritated or wounded foot

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Jack gets a wound swab at the hospital

There are different types of wound swabs

30

Transport Media

    • Amies
    • Swabs should be stored at room temp., ideally within 30 minutes
    • Reject swabs that are significantly delayed
    • Reject swabs if they are not in a transport medium (i.e. Amies or anaerobic medium)

Media & Incubation requirements

    • BAP (CO2)
    • AN BAP 🡪 to check for anaerobes
    • CNA O2 🡪 deep wound, below the waist, used to rule out fecal/flora contamination
    • MAC O2 🡪 isolate gram-negative bacteria

Medlab

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Jack gets a wound swab at the hospital

Clinical Gram

  • Good indicator of specimen quality

  • Good quality wound swabs have:
    • pus cells present
    • few epithelial cells

31

  

 

 

Medlab

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Treating Jack’s foot ulcer

Treatment primarily depends on the stage of the ulcer

Jack requires the following treatments:

32

Antibiotics

Specially designed shoes

Debridement

Foot baths

Disinfecting skin surrounding ulcer

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Ulcer care

33

Keep ulcer dry

Dressings

Surgical procedure

Other treatment options

Nursing

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Preventing Diabetic Foot Ulcers

  • Washing feet every day
  • Keeping toenails adequately trimmed, but not too short
  • Keeping your feet dry & moisturized
  • Changing socks frequently
  • Seeing a podiatrist for corn & callus removal
  • Wearing proper-fitting shoes

34

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PART C: Atrial Fibrillation (Afib)

Jack states it feels like his heart is racing and he can’t catch his breath. His Radial pulse is 130 BPM (irregular).

Jack is taken to the emergency department as per his family physician’s recommendation and is diagnosed with new onset of atrial fibrillation.

He is admitted to hospital with a cardiologist and endocrinologist referral.

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Complications may arise

36

Complications of Afib

  • Major concern is the potential to develop blood clots in the atria
  • These clots may circulate to other organs & lead to ischemia
  • May weaken the heart and lead to heart failure

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Cardiac Conduction

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Symptoms for Atrial Fibrillation

38

Which of these symptoms has Jack experienced?

Palpitations, irregular heartbeat

Light-

headedness

Reduced ability to exercise

Chest pain

Fatigue

Dizziness

Shortness of breath

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Atrial Fibrillation may be:

39

Occasional

Persistent

Long-standing persistent

Permanent

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Possible Causes of Atrial Fibrillation

Which of these risk factors does Jack have?

40

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Jack treats his Afib with medication

41

Rate Control Medications

Rhythm Control Medications

Beta blockers (Metoprolol or Bisoprolol)

Amiodarone (Cordarone)

Rate Control: Slows the heart rate by blocking some of the incoming electrical signals in the atria and preventing them from being transmitted to the ventricles

Rhythm Control: Maintains sinus rhythm

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Jack undergoes procedures for Rhythm Control

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    • Delivering a shock to the heart
    • Short-term solution
    • A-fib comes back in most patients

Electrical Cardioversion

    • Inserting thin wires into veins, groin or neck
    • A small jolt of radiofrequency electrical current is delivered to burn out tiny areas

Catheter Ablation

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PART D: Heart Failure

When the nurse working the morning shift comes by to see Jack, she notices that there is increased swelling of the ankles, feet and legs and his lower extremities were cool to the touch.

When attempting to wake Jack, the nurse notices that he’s extremely tired and would not open his eyes. Jack responds to her questions in a very slow pace with a sluggish tone. He would further comment to the nurse that he does not know where he is and would like to see his wife.

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Heart Failure

What is heart failure?

A condition caused by the heart not functioning as it should or a problem with its structure. It can happen if the heart is too weak or too stiff, or both. This can lead to different comorbidities such as fatigue, swelling in the legs and abdomen and shortness of breath which can be from fluid in the lungs

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What caused Jack’s Heart Failure?

45

    • Over time, high blood sugar can damage blood vessels and the nerves that control your heart
    • People with diabetes are more likely to have other conditions that raise the risk for heart disease

Diabetes

    • Irregular, fast heartbeat
    • leads to ineffective pumping of the blood which may weaken the heart

Atrial Fibrillation

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Signs & Symptoms

When the heart doesn’t pump well and congestion occurs, the following symptoms may appear:

46

Which of these symptoms does Jack experience?

Increased shortness of breath

Cool extremities

Sudden weight gain

Lethargy

Cough or cold symptoms lasting longer than a week

Cognitive impairment

Change in appetite

Increased urination at night

Increased swelling

Bloating or feeling full all the time

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Treating Heart Failure Medications

A combination of medications was administered to Jack:

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ACE inhibitors

Beta blockers

Diuretics

  • Relaxes blood vessels
  • Decreases blood volume
  • Manages heart rhythm
  • Increases urine production

Nursing

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Preventing Heart Failure

Prevention of heart failure mainly lies in lifestyle management

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Prevention

Healthy diet.

Avoiding intake of fatty and salty foods greatly improves the cardiovascular health of an individual

Cardiovascular exercises

Any activity that will increase heart rate and respiration

Vigorous activity raises oxygen and blood flow throughout the body

Smoking cessation

Nicotine causes vasoconstriction that increases the pressure along the vessels

Nursing

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ASSESSING JACK WITH ISBAR

Identity

Who are you? Where are you?

Patient’s name, age, gender and department

Situation

What is the problem/reason for contact?

Describe, ABCDE, test results, measured values

Background

If it’s urgent and/or you are concerned -speak up. Brief and relevant case history

Diagnosis, date, previous illness of significance, problems, treatment/intervention, allergies

Assessment

Assessment of situation and background

Is patient stable? What is the reason for patients condition?

Recommendation

Request specific advice and interventions and clarify expectations

What interventions do you recommend?

Nursing

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After his assessment. The nurses overseeing Jack’s care during hospitalization, implement interventions to…

50

Improve myocardial contractility/

systemic perfusion

Prevent complication

Reduce fluid volume overload

Provide information

Nursing

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Nursing Interventions

Jack’s nurses are focused on managing his activities and fluid intake

51

Promoting Activity Tolerance

    • 30 minutes of physical activity every day
    • The nurse and the physician should collaborate to develop a schedule

Managing Fluid Volume

    • The patient’s fluid status should be monitored closely
    • Auscultating the lungs
    • Monitoring daily body weight
    • Assisting the patient to adhere to a low sodium diet

Nursing

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Nursing Interventions

Jack’s nurses are also concerned about his mental health.

52

    • The nurse should promote physical comfort and provide psychological support
    • Begin teaching ways to control anxiety and avoid anxiety-provoking situations

Controlling anxiety

    • Encourage the patient to verbalize their concerns
    • Provide the patient with decision-making opportunities

Minimizing powerlessness

Nursing

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Cardiac Rehabilitation

  • There are multiple Cardiac Rehabilitation Centres across the GTA to support clients with progressive cardiac disorders to maintain their standard or living and recovery from major cardiovascular incidents
  • Jack has had difficult transition in completing his physical activity, regulating his diet and taking his medications as directed

Kin

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Main Goals of Cardiac Rehabilitation

Based on his health history would Jack qualify for cardiac rehabilitation at this time, if so why?

Kin

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PART E: LIVER CANCER

Due to Jack’s history with alcohol, he began to experience abdominal pain and swelling.

At times, when he went to work, his co-workers would point out that his eyes and skin appear yellow. Jack books an appointment with his doctor to find out why he has these symptoms.

During his appointment, the doctor collects information, performs a physical examination and ultrasound along with blood work. Unfortunately, his doctor diagnosed him with grade I malignant liver cancer.

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Benign vs. Malignant

Benign Neoplasms

    • Grow slowly
    • Well-defined capsule (borders)
    • Low mitotic index
    • Not invasive
    • Well-differentiated
    • Does not spread to other organs

Malignant Neoplasms

    • Grow rapidly
    • Not encapsulated (ill – defined borders)
    • High mitotic index
    • Invade & destroy local tissues
    • May not look like tissue of origin
    • Can metastasize

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Pathophysiology

Characteristics of malignant cells:

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Cells are undifferentiated

Cells grow at periphery and destroy surrounding tissues

Rate of growth is variable

Gain access to the blood and lymphatic channels and metastasizes to other of the body

Often cause anemia, weakness, and weight loss, extensive tissue damage and death

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What is Liver Cancer?

  • Liver cancer occurs when liver cells develop changes (mutations) in their DNA
  • A cell's DNA is the material that provides instructions for every chemical process in your body. DNA mutations cause changes in these instructions
  • Cells may begin to grow out of control and eventually form a tumor — a mass of cancerous cells

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Pathophysiology of Liver Cancer

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Carcinogenesis:

Initiation

    • Encounter initiators

Promotion

    • Repeated exposure

Progression

    • Increased malignant behaviour

Invasion & metastasis

    • Spread to other organs

What phase is Jack’s liver cancer in?

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Tumor Staging & Grading

A complete diagnostic evaluation include identifying the stage and grade of the tumor

Staging: determines tumour size and existence of metastasis

Tumor, nodes, and metastasis (TNM) system

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T

    • Extent of primary tumour

N

    • Absence or presence and extent of regional lymph node metastasis

M

    • Absence or presence of distant metastasis

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Jack’s Grade I liver cancer

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Grading

    • The classification of the tumour cells
    • It seeks to define tissue type and if cells are undifferentiated

Grade I - IV

    • Grade I tumours closely resemble the tissue of origin structure and function
    • Grade IV tumours do not clearly resemble the tissue of origin structure and function

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The Role of the Immune system

Immune system

Some evidence indicates that the immune system can detect the development of malignant cells and destroy them before cell growth becomes uncontrolled. If the immune system fails to identify and stop the growth of malignant cells, clinical cancer develops

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Risk Factors

63

Which of these risk factors does Jack have?

Excessive alcohol consumption

    • Consuming more than a moderate amount of alcohol daily over many years

Diabetes

    • People with diabetes have a greater risk of liver cancer than those who don’t have diabetes

Non-alcoholic fatty liver disease

    • An accumulation of fat in the liver increases the risk of liver cancer

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Jack receives radiation therapy for his cancer

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Assessment

Assess Jack’s nutritional status, general well-being and skin and oropharyngeal mucosa regularly

Symptoms

Keep an eye out for systemic symptoms

Safety

Assigning Jack to a private room, posting safety precautions, having safety measures for staff and prohibiting/limiting visits to the patient

Jack’s liver was not greatly damaged. His doctor suggested radiation therapy as treatment, since his cancer could not be removed surgically

Nursing