1
C790 Nursing Informatics (WGU) THEORIES AND
MODELS Questions with Correct Answers for a
Specific Exam Mail
Open System (Systems Theory)
Ans: Open systems take input (information, matter, and energy) from the
environment, process the input, and then return output to the environment.
The output then becomes feedback to the system. Open systems are
sometimes referred to as closed. This reference does not mean that the
system is truly a closed system but rather that the boundaries are less
permeable and as a result input is limited.
Dynamic homeostasis
Ans: refers to the processes used by a system to maintain a steady state or
balance. Feedback loop-goal of maintaining a steady state can affect how
clinical settings respond when changes are made or a new system is
implemented.
Equifinality
Ans: is the tendency of open systems to reach a characteristic final state
from different initial conditions and in different ways. Example: two different
clinics with different charting systems adopt a new system, and end up with
the same result.
Entropy
Pretest - Stuvia US
, 2
Ans: is the tendency of all systems to break down into their simplest parts. As
it breaks down the system becomes increasingly disorganized or random.
In data transmission, entropy measures the loss of information when a signal is
transmitted.
All systems eventually must be replaced.
Negentropy
Ans: is the opposite of entropy. This is the tendency of living systems to grow
and become more complex.
Reverberation
Ans: is reflected in the intended and unintended consequences of system
change. Chaos theory was developed in the 50s to explain the phenomena
of unintended consequences.
dynamic systems
Ans: chaotic systems. While chaotic systems vary in their state of stability,
they are in a constant state of change. The change is nonlinear. In a
nonlinear system the output of the system is not proportional to the input.
reiterative feedback loop
Ans: major impact on how imput affects output. A minor change in input
can cause a major change in output (butterfly effect).
fractal-type patterns
Pretest - Stuvia US
C790 Nursing Informatics (WGU) THEORIES AND
MODELS Questions with Correct Answers for a
Specific Exam Mail
Open System (Systems Theory)
Ans: Open systems take input (information, matter, and energy) from the
environment, process the input, and then return output to the environment.
The output then becomes feedback to the system. Open systems are
sometimes referred to as closed. This reference does not mean that the
system is truly a closed system but rather that the boundaries are less
permeable and as a result input is limited.
Dynamic homeostasis
Ans: refers to the processes used by a system to maintain a steady state or
balance. Feedback loop-goal of maintaining a steady state can affect how
clinical settings respond when changes are made or a new system is
implemented.
Equifinality
Ans: is the tendency of open systems to reach a characteristic final state
from different initial conditions and in different ways. Example: two different
clinics with different charting systems adopt a new system, and end up with
the same result.
Entropy
Pretest - Stuvia US
, 2
Ans: is the tendency of all systems to break down into their simplest parts. As
it breaks down the system becomes increasingly disorganized or random.
In data transmission, entropy measures the loss of information when a signal is
transmitted.
All systems eventually must be replaced.
Negentropy
Ans: is the opposite of entropy. This is the tendency of living systems to grow
and become more complex.
Reverberation
Ans: is reflected in the intended and unintended consequences of system
change. Chaos theory was developed in the 50s to explain the phenomena
of unintended consequences.
dynamic systems
Ans: chaotic systems. While chaotic systems vary in their state of stability,
they are in a constant state of change. The change is nonlinear. In a
nonlinear system the output of the system is not proportional to the input.
reiterative feedback loop
Ans: major impact on how imput affects output. A minor change in input
can cause a major change in output (butterfly effect).
fractal-type patterns
Pretest - Stuvia US
