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PS 103 questions and answers certified 2024
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PS 103 questions and answers certified 2024
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PS 103: Human Factors and SafetyPS 103 Lesson 1: Understanding the Science of Human Factors
Karen's Error: Karen is a pediatric nurse with more than seven years of
experience. She cares for many sick children: Some cases are simple, others
complex. Working in this environment, Karen and her colleagues experience
emotions ranging from joy to pain.It has been a particularly hectic week for
Karen. Not only are three staff nurses out on leave, but the float and per diem
nurses brought in to help have little pediatric experience. Earlier in the week,
Karen switched shifts with another nurse and worked an evening shift and
then the following morning shift. On the final shift for this long week, Karen is
on the evening shift again.Karen checks the electrodes taped to the chest of a
four-year-old girl. After pulling up the bed sheet and helping the little girl get
comfortable, she intends to reconnect the lead into the cord from the heart
monitor machine located at the bedside. With the machine connected, the
staff can monitor the patient's condition from the nurses' station down the
hall.After pulling up the sheet, Karen hears her name called over the intercom.
She has an urgent phone call from her daughter, who is at her friend's house
and is not feeling well. Karen's daughter needs someone to pick her up and
bring her home.
Referring to the case on the previous page: What factors do you think most
likely affected Karen’s ability to reconnect the electrodes correctly?
- Stress
- The design of the equipment
- Inadequate training
,- Fatigue
- interruptions
The only answer that is probably wrong is inadequate training. There is no
evidence to suggest this.Otherwise, all these factors probably contributed to
what happened. Karen is tired after her busy week, stressed out and
distracted by her daughter's illness, and interrupted by the phone call from her
daughter and question from the other nurse. Ultimately, the design of the
equipment allowed her, in her distracted state, to make an error.
PS 103 Lesson 1: Understanding the Science of Human Factors
Your Turn: Remote Control
Here is a quick example of how equipment design can set people up for
failure. Look at this TV remote control:
How do you turn on the TV?
- The small green button at the bottom
- The smaller orange button in the opposite corner
- The large yellow button in the corner
The small green button at the bottom
, Most people will quickly reach for the largest button at the top of the remote
control. However, on this remote that button is not the power button. The
green button is the power button. If you had this remote, how many times
would you try to turn on the TV and push the wrong button?
In designing a TV remote control, just like any new piece of technology, the
designers should think about the context in which the remote will be used, the
frame of mind the user will be in when using it, the user's expectation of how
the equipment will function, and the basic use of the equipment. In most
cases, a person will use the remote when he or she is only mildly paying
attention, so the power button must be easy to spot.
6 Ways to Show Appreciation for Your Child's Teacher
PS 103 Lesson 1: Understanding the Science of Human Factors
Your Turn: Driving Error
Check your understanding: Which of the following is a skill-based error you
might make while driving?
- You leave work and drive toward home, forgetting you meant to grab
something at the store in the opposite direction.
- While driving to your friend's new home for the first time, you misinterpret
directions from your GPS and take a wrong turn.
The example where you forgot to grab something is correct.
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