Test Bank for Porth’s Pathophysiology: Concepts of Altered Health States 10th Edition Updated 2025–2026 Complete All Chapters Exam Questions and Answers Study Guide for Norris & Lalchandani Pathophysiology Success

PORTH'S PATHOPHYSIOLOGY: CONCEPTS OF
ALTERED HEALTH STATES 10TH EDITION BY
TOMMIE L NORRIS , RUPA LALCHANDANI TEST
BANK ALL CHAPTERS COVERED

, Chapter 01: Concepts of Health and Disease




Question 1 1 out of 1 points


The neuroscience nursing unit has developed a set of step-by-step directions of what should occur
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if a nursing assessment reveals the client may be exhibiting clinical manifestations of a
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cerebrovascular accident (CVA). Which statement about clinical practice guidelines are accurate?
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Select all that apply.
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Selected C.
Answers: When developing a CVA set of step-by-step directions, the nursing unit should ask for
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assistance from experts in the neuroscience field. The potential users of the guidelines should pilot
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test it for further feedback.
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D.
A meta-analysis could be utilized to combine evidence from different studies to produce a more
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accurate diagnostic method. T T




E.
The development of evidence-based practice guidelines require a research review from different
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studies to develop the most accurate diagnostic method to implement.
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Response Rationale: Clinical practice guidelines are systematically T T T T T




Feedback: developed and intended to inform practitioners in making decisions about health care
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for CVA clients. They should be developed using research and review by experts in the clinical
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content. Potential users should also participate and provide feedback prior to implementation. The
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purpose of the guidelines is to review EBP articles and develop new practice guidelines rather that
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continuing practicing primarily on "how it has always been done before." Once developed, the
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guidelines must be continually reviewed and changed to keep pace with new research findings. A
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meta-analysis could be utilized to combine evidence from different studies to produce a more
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accurate diagnostic method or the effects of an intervention method.
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,Question 2 T 1 out of 1 points
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Question 2 T




The nurse is questioning the validity of oxygen saturation readings from the new oximeters on the
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unit. Which action should the nurse take to best determine if the results from the oximeter are valid?
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Selected D.
Answer: Compare clients' results to measurements taken using arterial blood gas analyses.
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Response Rationale: Validity refers to the extent to which a
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Feedback: measurement tool measures what it is intended to measure.T T T T T T T T




The best way to confirm validity is to compare the measurement against those from another test that
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measures the same data. Oxygen saturation levels and PaO 2 are both
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reported on arterial blood gas (ABG) results. The results from any client who had an ABG done
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concurrent with an oxygen saturation measurement with the new oximeter could be compared for
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discrepancy. Repeating the test with the same device would provide information about reliability.
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Reviewing the literature may provide the nurse with the company's interpretation of the validity of
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the oximeter brand, but this does not guarantee perfect functioning of the unit in question. If the
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results are inaccurate, comparing these inaccurate results to one another will not help determine
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validity of the measurement.
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, Question 3 T




A nurse researcher is interested in the natural history of a disease being studied. What should the
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nurse focus on to best understand the condition's natural history?
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Selected T A.
Answer: Focusing on clients who did not receive treatment for the
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condition

Response T Rationale: The natural history of a disease refers to the
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Feedback: progression and projected outcome of the disease without T T T T T T T T



medical intervention. For this reason, following clients who
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have had any level of treatment will be less valuable at
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establishing natural history than focusing on only those who T T T T T T T T T



have had no treatment. Client experience with the condition
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will not inform how the disease progresses from a
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pathogenesis perspective. T




Question 4 T
1 out of 1 points
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A nurse practitioner is working in a crowded neighborhood where the
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population is primarily immigrants from China. The nurse has designed a
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research study to follow children from kindergarten to the age of 25.
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She is going to be looking at their diet, successful progression in school,
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health practices, and development of disease, to name a few items. This type
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of research is known as:
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Selected Answer: Cohort study
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Response Rationale: In this cohort study, a group of people who were
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Feedback: born at approximately the same time or share some T T T T T T T T T



characteristics of interest is the focus of the research. This T T T T T T T T T T



study does not possess the characteristics of a case–control or
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cross-sectional study. Epidemiologic study is not an existing T T T T T T T T



methodology.


Question 5 T
1 out of 1 points
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The clinical educator of a hospital medical unit has the mandate of
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establishing evidence-based practice guidelines for the nursing care on the
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unit. Which statement most accurately captures a guiding principle of the
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nurse's task? T



Selected T A.
Answer: The guidelines will combine individual expertise with
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external systematic evidence. T T