Chapter 2: Theoretical Foundations of Health Informatics

Health Informatics an Interprofessional Approach 1st Edition By Nelson Staggers

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Chapter 2: Theoretical Foundations of Health Informatics

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

  1. What is the primary difference between an open and closed system?
a. An open system has no boundary, and therefore there are no limits to the inputs and outputs between an open system and the environment.
b. An open system has a semipermeable boundary and therefore will filter both inputs and outputs when interacting with the environment.
c. A closed system has a semipermeable boundary and therefore will filter both inputs and outputs when interacting with the environment.
d. A closed system does not have a boundary and therefore will not interact with the environment.

 

 

ANS:  B

With an open system the boundary is semipermeable, thereby controlling what will be accepted as input and what will be permitted to leave the system.

 

DIF:    Cognitive Level: Understand            REF:   p. 20

 

  1. The primary characteristics used to analyze an open system include:
a. structure, purpose, and functions.
b. sub-system, target system, and super-system.
c. boundary, attributes, and environment.
d. hierarchical, web, and hybrid.

 

 

ANS:  A

Using these three characteristics, one can determine why the system exists, what functions it performs to achieve its purpose, and how it is structured to achieve its purpose.

 

DIF:    Cognitive Level: Analyze                REF:   p. 20

 

  1. A change made to any aspect of an open system, whether it is a health care system or a computer system, will produce change in other aspects of that same system. As a result, any change can produce unintended consequences. This process is called:
a. dynamic homeostasis.
b. semi-planned change.
c. negentropy.
d. reverberation.

 

 

ANS:  D

Change within any part of the system will be reflected across the total system through a process termed reverberation. Reverberation is reflected in the intended and unintended consequences of system change.

 

DIF:    Cognitive Level: Remember            REF:   p. 23

 

  1. Chaotic systems are in a constant state of change. This degree or scope of change that can occur has been described as the butterfly effect. The butterfly effect refers to:
a. a minor change in input can create a major change in output, or a major change in input can result in minor changes in output.
b. a major change in input will create a major change in output, and a minor change in input will create minor changes in output.
c. a minor change in input can create a minor change in output; however, a major change in input will result in minor changes in output.
d. a minor change in input may create a major change in output; however, a major change in input will create a major change in output.

 

 

ANS:  A

Chaotic systems are dynamic systems with reiterative feedback loops. A minor change in input can create a major change in output. This is often described as the butterfly effect. A butterfly’s flapping wings in California can over time become a hurricane in New York.

 

DIF:    Cognitive Level: Analyze                REF:   p. 24

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