NUR 235 Exam 2 Review - Pathophysiology

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Questions and Answers

Which electrolyte is primarily lost through severe vomiting and diarrhea?

  • Chloride
  • Calcium
  • Potassium (correct)
  • Sodium

What is a primary effect of an imbalance in electrolytes on the body?

  • Enhanced nutrient absorption
  • Altered metabolism of carbohydrates
  • Impaired cellular communication (correct)
  • Increased oxygen consumption

What condition is associated with the retention of fluid in the body's circulation?

  • Edema (correct)
  • Cirrhosis
  • Dehydration
  • Hypovolemia

Which buffer system is primarily responsible for maintaining acid-base balance in the blood?

<p>Bicarbonate buffer system (C)</p> Signup and view all the answers

What happens to the body when the physiologic pH deviates from its normal range?

<p>Damage to cell membranes (A)</p> Signup and view all the answers

What should students do if they finish the test early?

<p>Sit quietly and occupy themselves or excuse themselves quietly. (A)</p> Signup and view all the answers

What is emphasized about discussing test questions after the exam?

<p>Discussing test questions is a violation of the academic integrity policy. (C)</p> Signup and view all the answers

What should everyone do before the test to avoid delays?

<p>Ensure their software is updated. (C)</p> Signup and view all the answers

What action is prohibited immediately after the test?

<p>Congregating in the hallway near the testing room. (A)</p> Signup and view all the answers

What is the primary goal of the exam as stated?

<p>To assess understanding of the material. (B)</p> Signup and view all the answers

What are the potential effects of impaired ventilation-perfusion matching?

<p>Hypoxemia and hypercapnia (D)</p> Signup and view all the answers

Which condition is characterized by chronic airflow obstruction?

<p>COPD (B)</p> Signup and view all the answers

How can impaired ventilation be measured?

<p>Blood gas analysis (A)</p> Signup and view all the answers

What is a primary function of the cardiac cycle?

<p>Pumping blood through the circulatory system (A)</p> Signup and view all the answers

Which of the following conditions is associated with altered perfusion?

<p>Shock (B)</p> Signup and view all the answers

What is the role of neural control in the circulatory system?

<p>Controlling heart rate and blood pressure (D)</p> Signup and view all the answers

Which of the following is NOT a manifestation of altered perfusion?

<p>Wheezing (A)</p> Signup and view all the answers

What is a common treatment approach for improved ventilation and diffusion?

<p>Oxygen therapy (D)</p> Signup and view all the answers

What is the primary focus when preparing for a test regarding foundational concepts?

<p>Understanding how cells respond to stress and inflammation (B)</p> Signup and view all the answers

Why is it advised to understand the 'why' behind diseases and symptoms?

<p>It simplifies the understanding of complex material in the future (D)</p> Signup and view all the answers

What type of exam questions can be expected that require critical thinking?

<p>Scenarios asking for interpretation of patient care situations (A)</p> Signup and view all the answers

What should be avoided during preparation to make studying more effective?

<p>Using PowerPoint slides exclusively (A)</p> Signup and view all the answers

What must students ensure regarding their computers during the exam?

<p>Their computers are fully charged (A)</p> Signup and view all the answers

How should the classroom be arranged before the exam begins?

<p>Desks should be spread out for social distancing (D)</p> Signup and view all the answers

What aspect of the test structure should students pay special attention to according to the advice given?

<p>Understanding the administration process through ATI (A)</p> Signup and view all the answers

Which approach is recommended for reviewing material effectively?

<p>Integrating real diagnoses with concepts studied (C)</p> Signup and view all the answers

Flashcards

Test Start Delay

Waiting until everyone is ready before starting a test to ensure fairness and avoid disruptions.

Test Duration

The allotted time for completing a test, typically 1 hour unless accommodations are provided and approved.

Finishing Early

Quietly occupy oneself or leave the room after completing the test to avoid disturbing those still taking the exam.

Post-Test Discussion

Avoiding any discussion of the test content immediately after its completion to maintain fairness and prevent cheating.

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Academic Integrity Violation

A serious academic offense that involves sharing test questions or answers with those who have not yet taken the exam.

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Ventilation

The process that moves oxygen from the lungs to the blood and carbon dioxide from the blood to the lungs. It's like air moving in and out of a balloon.

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Diffusion

The process that allows oxygen and carbon dioxide to move between the bloodstream and the tissues. Imagine a gas exchange like a trading system.

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Physiologic pH

The normal range of pH in the body, usually between 7.35 and 7.45. Think of it as a delicate balance.

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Hypertonic solution

Fluid that is too concentrated, meaning that it has a higher solute concentration compared to the inside of cells. Think of it like a strong syrup.

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Hypotonic solution

Fluid that is less concentrated, meaning it has a lower solute concentration compared to the inside of cells. Think of it like diluted juice.

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Ventilation-Perfusion Matching

The process of gas exchange between the alveoli and the capillaries in the lungs, where oxygen moves into the blood and carbon dioxide moves out.

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Impaired Ventilation-Perfusion Matching

A condition where the air you breathe in doesn't match up with the blood flow in your lungs, leading to problems with oxygen and carbon dioxide levels.

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Impaired Diffusion

A type of impaired ventilation-perfusion matching where there is a problem with gases moving across the walls of the alveoli and capillaries.

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Hypoxemia

A condition characterized by low oxygen levels in the blood.

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Hypoxia

A condition characterized by low oxygen levels in the tissues.

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Hypercapnia

A condition characterized by high carbon dioxide levels in the blood.

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Cardiac Output

The heart's ability to pump blood effectively.

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Pathophysiology

The study of the functional changes associated with disease.

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Inflammation

A process by which the body responds to injury or infection, involving a cascade of events including redness, swelling, pain, and heat.

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Tissue Repair

The process by which damaged tissues are repaired and restored.

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Immune Response

The body's defense system against foreign invaders, involving cells and proteins that specifically target and destroy harmful organisms.

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Infection Process

The way in which infections enter and spread within the body, triggering a response from the immune system.

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Critical Thinking

The ability to use knowledge and experience to effectively solve problems, analyze information, and make decisions.

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Conceptual Understanding

A method of learning that emphasizes understanding the underlying reasons for events or phenomena, rather than simply memorizing facts.

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Concept Application

The process of applying previously learned concepts and principles to new situations and scenarios.

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Study Notes

Exam 2 Review - NUR 235

  • Chapters Covered: 8, 9, 15, 16 of the Applied Pathophysiology textbook (Nath, Fourth edition)

Chapter 8: Altered Fluid and Electrolyte Balance

  • Normal electrolyte values crucial (Figure 8.1)
  • Electrolyte functions and imbalances (Table 8.1) detailed
  • Mechanisms of imbalances (e.g., vomiting, diarrhea, diuretics, renal failure)
  • Cellular and tissue fluid movement
  • Fluid intake and excretion regulation
  • Isotonic, hypertonic, and hypotonic fluid solutions
  • Fluid imbalances (hypovolemia, hemorrhage, dehydration, water intoxication, hypervolemia, edema)
  • Examples: cirrhosis, dehydration

Chapter 9: Altered Acid-Base Balance

  • Importance of maintaining physiologic pH
  • Effects of pH imbalances on cells and tissues
  • Body's buffer systems (3) and their function
  • Models of metabolic acidosis

Chapter 15: Altered Ventilation and Diffusion

  • Ventilation process explained
  • Diffusion process explained
  • Impaired ventilation's effects (hypoxemia, hypoxia, hypercapnia)
  • Impaired diffusion's effects
  • Ventilation-perfusion matching impacts
  • Models: COPD (emphysema, chronic bronchitis), asthma, cystic fibrosis

Chapter 16: Altered Perfusion

  • Path from ventilation to perfusion detailed
  • Circulatory system's role (pulmonary, systemic, cardiac)

General Studying Advice

  • Diverse resources: textbook, notes, pre-lecture material, videos (Brightspace)
  • Avoid overreliance on PowerPoint slides; supplement with readings and class discussions
  • Understand fundamental concepts (cell response, inflammation, tissue repair, infection)
  • Review real-world diagnoses and their pathophysiology, signs, symptoms, tests, and treatments.
  • Understand why certain processes happen (e.g., why disease occurs, why signs/symptoms present, why treatment is used)
  • Practice applying critical thinking to scenarios (case studies)
  • Exams are about demonstrating understanding, not memorization
  • Electronic devices (phones, watches) must be placed in front of room at beginning of test
  • Do not congregate near classroom after exam, unless for testing makeup
  • Discussing test questions (pre-test) is inappropriate.

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