CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 20, Problem 10TYK
Summary Introduction
To determine: The well designed aspects, limitations of the given study and how would be improve the design of the study to address these limitations of the given study.
Introduction:
For a scientist, a controlled experiment is necessary component of a well designed study. In the given study: People having acne use this cream.
Acne or pimple found in the skin when oil-producing hair follicles or pores have been clogged. Propionibacterium acne is an acne producing bacterium that gets trapped in the follicle of the skin. When these follicles get ruptured and inflammation occurs in the form of pimples at the site which are WBCs of immune system.
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(a) Which of the following would best describe the reasoning of the physicians prescribing placebos in the Times article and why? Would this reasoning correspond to the principle of double effect and why?
X: Prescribing a placebo
Y: Alleviate patient pain
Z: Deceive the patient
I am doing X in order to Z, and Y results.
I am doing X in order to Y, and Z results
(b) To what extent are patients in the Times article giving their informed consent? As I’ve encouraged in the lecture notes, it is useful to think of informed consent in terms of the four components of autonomy enumerated in Chapter 1. Do the patients to whom these placebos are prescribed exhibit all of those components? Why or why not?
(c) Would withholding information from the patients in the Times article be justified under either of the two exceptions to disclosure outlined in Canterbury v. Spence?
How would knowledge of a disease type and general physiology assist in the design of a medical device for an endovascular application? Provide reasons for your answer.
A researcher is conducting an experiment testing whether a new pharmaceutical drug is able to effectively treat heartburn and has a physician assisting with the study involving volunteers who experience chronic heartburn. Which of the following descriptions most closely describes the control used in this study?
Show answer choices
The researcher has organized the patients into 4 groups, where patients either take 1 dose of the drug, 2 doses of the drug, 1 dose of the placebo, or 2 doses of the placebo.
The physician asks patients to rate their heartburn discomfort on a scale from 1-10 every 5 minutes up to an hour.
The physician and patients both do not know if they are receiving the actual drug or a placebo.
The placebo pill contains just compressed sugar and no active drug.
Patients are randomly selected and placed into the four categories.
Chapter 20 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 20 - Connecting the Concepts 1. There are several key...Ch. 20 - True or false? Each cell in the human body is...Ch. 20 - Prob. 3TYKCh. 20 - Negative-feedback mechanisms are a. most often...Ch. 20 - Briefly explain how the structure of each of these...Ch. 20 - Describe ways in which the bodies of complex...Ch. 20 - Which of the following best illustrates...Ch. 20 - The diaphragm is a large sheet of muscle that...Ch. 20 - Prob. 9TYKCh. 20 - Prob. 10TYK
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