PS 102: From error to harm questions
and answers rated A
Nearing the end of her 18-hour work shift, a resident sees a patient with extremely high blood
glucose levels. She writes the patient a prescription for insulin
...
PS 102: From error to harm questions
and answers rated A
Nearing the end of her 18-hour work shift, a resident sees a patient with extremely high blood
glucose levels. She writes the patient a prescription for insulin; however, in her exhaustion, she
closes her "U" (for "units"), and it looks more like an extra zero. As a result, the pharmacist
dispenses an insulin dose that's ten times stronger than the patient needs.
Which of the following is a latent unsafe condition in the system that contributes to the resident's
error? ✔✔long work schedule
To prevent this problem from happening again, which of the following would be the best course
of action? ✔✔Develop a system that prevents messy handwriting from causing
miscommunication that leads to error.
"Latent errors" are best defined as: ✔✔Defects in the design and organization of processes and
systems.
Two women — one named Camilla Tyler, the other named Camilla Taylor — arrive at a
particularly busy emergency department at about the same time. Ms. Tyler needs a sedative, and
Ms. Taylor needs an antibiotic. The doctor orders the medications, but mixes up the patients
when filling out the order sheets. The pharmacist dispenses the medications as ordered, and the
nurse administers an antibiotic to Ms. Tyler and a sedative to Ms. Taylor.
What is the active error in this scenario? ✔✔The nurse administers an antibiotic to Ms. Tyler and
a sedative to Ms. Taylor.
What is one of the latent errors in this scenario? ✔✔The forms are completed by hand at the
same time for different patients.
According to James Reason, by definition an "unsafe act" always includes: ✔✔A potential
hazard
Anita, a nurse practitioner, is seeing Mr. Drummond in clinic. Mr. Drummond is a 57-year-old
man with diabetes and chronic kidney disease. Having kept up on the literature, Anita is aware
that tightly controlling his diabetes can slow the progression of his renal disease. She discusses
her plan to increase his dose of glargine (long-acting insulin) by 12 units per day with one of the
family physicians in the clinic, who agrees. At the end of the day, as she is working on her
documentation, she realizes she never told Mr. Drummond to increase his insulin dose.
This is an example of what type of error? ✔✔lapse
Roger, a pharmacist in a hospital, is working in the discharge pharmacy filling medications for
patients who are going home. He sees a prescription for ciprofloxacin, an antibiotic, and he asks
his pharmacy technician Mike to fill it quickly, as the patient is waiting and anxious to leave.
Mike checks the shelves and sees they are out of ciprofloxacin, but they do have levofloxacin (an
antibiotic in the same class that covers most, but not all, of the same types of infections). Mike
knows he should usually check with the prescribing physician before making a substitution.
However, in the interest of efficiency in this particular case, Mike deems it OK to go ahead. He
substitutes the medications.
This is an example of what type of unsafe act? ✔✔violation
Which of the following is the most significant advantage of shifting to a systems view of safety
within health care? ✔✔It allows us to change the conditions under which humans work
At University Hospital, the rate of Clostridium Difficile colitis has doubled during the past year.
After reviewing the data, the hospital's senior leaders conclude that this is due to poor hand
hygiene on the part of the staff, even though they have a clear hand washing policy in place and
don't believe most staff are intentionally disregarding the policy. They decide to start a hand
washing campaign and post signs all over the hospital reminding providers to wash their hands.
What type of error is this intervention best designed to address? ✔✔lapse
What intervention helped prove that catheter-associated bloodstream infections (CLABSIs) were
preventable consequences of care? ✔✔A checklist of evidence-based practices applied
consistently and collectively every time a catheter is used
What is one reason that patient safety has shifted to work on reducing harm in addition to
preventing errors? ✔✔Harm is more preventable than providers once thought.
Which of the following is included in the IHI Global Trigger Tool definition of harm?
✔✔Physical injury caused by medical care that triggers additional care
The Swiss cheese model of harm illustrates what important concept in patient safety?
(A) Unsafe acts (including errors and violations) are the most important cause of harm to
patients.
(B) Both latent unsafe conditions and active failures (unsafe acts) contribute to harm.
(C) Harm results when the layers of defense in a system fail to prevent a hazard from reaching a
patient.
(D) B and C ✔✔(D) B and C
Why do some patient safety leaders such as Dr. David Bates believe the definition of harm
should be broader than the definition in the IHI Global Trigger Tool? ✔✔Because health care
systems should work to prevent more types of harm than the current definition includes
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