Role of registered nurses in error prevention,discovery and correction
A E Rogers,1 G E Dean,2 W-T Hwang,3 L D Scott4
nurses play in discovering and correcting errors
Background: Registered nurses have a vital role in
discovering and correcting medical error.
The surveillance role of nurses is particularly
University of New York atBuffalo, Buffalo, New York, USA;
Objective: To describe the type and frequency of errors
important in the intensive care environment since
detected by American critical care nurses, and to
the rate of preventable adverse drug events and
ascertain who made the errors discovered by study
potential adverse drug events in ICU settings is
nearly twice the rate in non-ICU settings.7 Not
only are ICU patients exposed to more medications
Methods: Daily logbooks were used to collect informa-tion about errors discovered by a random sample of 502
and treatments than patients in general care areas,
critical care nurses during a 28-day period.
they are critically ill, with little natural resilience or
Results: Although the majority of errors discovered and
ability to defend themselves from the conse-
quences of human error. Thus the potential for
corrected by critical care nurses involved medications
(163/367), procedural errors were common (n = 115).
patient harm is greater. In fact, approximately 29%
Charting and transcription errors were less frequently
of the errors observed in an ICU (Israel) were
discovered. The errors discovered by participants were
categorised as potentially harmful, causing signifi-
attributed to a wide variety of staff members including
cant deterioration in the patient’s status or death.8
nurses, doctors, pharmacists, technicians and unit
Little is known about nurses’ discovery of errors
that do not involve medications, or who makes the
Conclusions: Given the importance of nurses in
errors that are subsequently discovered by nurses.
maintaining patient safety, future studies should identify
Therefore, the purpose of this study is to describe
factors that enhance their effectiveness to prevent,
the type and frequency of errors detected by
intercept and correct healthcare errors.
critical care nurses, and to ascertain wheneverpossible who made the error discovered by theparticipants. It is hoped that this information will
Traditional roles of nursing include surveillance,
assist in future root cause analysis for error
for example, watching patients for changes in their
prevention among healthcare providers.
condition and protecting them from harm/errors. Even as students, nurses are taught that it is their
duty and obligation to question doctors’ orders and
The data for this diary-based descriptive study
to refuse to administer medications or carry out
were collected as part of a large American study
procedures that they feel are inappropriate.1
Despite their important role in maintaining safety,
reported by hospital staff nurses and errors. Since
most studies of patient safety have focused
the methodology and sample have been described
exclusively on the role of registered nurses in
in detail elsewhere, they are described only briefly
administering medications, and not on their role in
error prevention, discovery or correction.2
Few studies have examined the part that nurses
play in discovering and correcting inappropriate or
A total of 502 American critical care nurses
dangerous medication orders, transcription errors
participated in this study. As expected, the sample
and dispensing errors. When evaluating 334 med-
was predominately female (92.8%), Caucasian
ication errors, Leape and colleagues3 found that
(86.7%), middle-aged (mean (SD) age 44.4 (8.0)
half of the errors were caught before they reached
years, range 23–66 years), and were experienced
the patient, with 85% of these errors intercepted
(mean years experience 18.4 (8.5) years). Almost all
by registered nurses; the remaining 15% were
participants worked 12-hour shifts (87.8%). All
detected by pharmacists. In another study,4 regis-
participants were registered nurses who worked
tered nurses reported more adverse medical events
full-time (at least 36 hours per week) as a staff
than doctors in training (resident doctors and
nurse in a critical care area (table 1).
pulmonary/critical care fellows), intensive careattending doctors and other members of the
intensive care unit (ICU) staff such as pharmacists,
Data were collected on a daily basis for 28 days
unit secretaries, and students (59.1% vs 27.2%,
using logbooks. Participants completed 15 items
2.6% and 4.7%, respectively). In addition, over 50%
about their sleep and mood each day, and an
of the critical incidents documented in a paediatric
additional 17 items on days they worked. On
ICU were discovered by registered nurses.5 Finally,
workdays, nurses were asked about their scheduled
several of the examples included in a paper by
and actual work hours, their level of alertness, and
Elfering and colleagues6 allude to the part registered
whether or not they made any errors, or discovered
Qual Saf Health Care 2008;17:117–121. doi:10.1136/qshc.2007.022699
because of insufficient information). Similar procedures were
Employment settings of the registered nurses
used to further subdivide medication administration errors intosix subcategories: wrong patient, wrong medication, wrong
dosage, wrong route of administration, wrong time and omitted
Next, all narratives were examined to determine who made
the error (doctor, pharmacist, another nurse, unit clerk,
technician). If participants did not identify who made the error
or if it could not be determined who made the error, it was
included in the unable to classify category. All errors were
examined to determine if they were discovered prior to reaching
the patient. Minimal discrepancies in coding were identified at
each step and resolved with 100% agreement among the
investigators. Finally, clustered x2 tests were performed to
determine if the number of discovered errors were related to
hospital size or type of critical care unit.
someone else’s error. Space was also provided for participants to
describe any practice deviations (errors) that they may have
There were 367 errors discovered by 184/502 participants during
made or discovered during their work shift. Prior to beginning
the 28-day data-gathering period. The number of errors
the study, all items and the logbook format itself was pilot
discovered by an individual nurse ranged from 0 to 12. Errors
involving medication administration were the most frequently
Although not often used to collect information about medical
discovered by nurses (44.4%), followed by procedural errors
error, there is some evidence that daily, anonymous, end-of-
(31.3%). Charting and transcription errors were less frequently
shift reporting of errors is a valid data collection approach.
discovered (15.0% and 2.7%, respectively). The most common
Several studies have shown that nurses and resident doctors are
medication error discovered by critical care nurses participating
more likely to report medication errors, needle sticks, potential
in this study was the administration of an incorrect dose of a
injuries to patients and other adverse events using anonymous
prescribed medication (45.1%). Discovering that the wrong drug
end-of-shift reports than completing traditional incident
had been administered or that a dose of a prescribed medication
had been omitted was also relatively common. Examples ofdiscovered errors are presented in table 2.
Errors made by other registered nurses were the most
frequently reported by participants (40.6%), followed by doctor
A letter describing the study and a demographic questionnaire
ordering errors (8.5%). There were 130 errors that could not be
was sent to 5261 members of the American Association of
attributed to a particular type of provider (see tables 3 and 4).
Critical Care Nurses. Of the 2184 nurses who returned the
Only 43 of the 367 errors (11.7%) were discovered before they
questionnaires, only 1148 met the criteria for participation—for
reached the patient. Many of the errors intercepted before they
example, worked at least 36 hours per week providing direct
reached patients involved ordering errors, incorrect dispensing
patient care as a critical care staff nurse on a specific unit and
of medications, and allergies that were overlooked when
not employed as a member of a hospital float pool or nursing
medications were ordered and/or dispensed (see table 5).
agency. Nurses who were employed in specialised roles such asadvanced practice nurses, nurse clinicians and nurse managers
The number of discovered errors did not differ significantly
with regard to the critical care unit (p.0.2) or the hospital size
Eligible participants received two 14-day logbooks, directions
for recording information in the logbooks, and prepaidenvelopes to return the completed logbooks. A modified
Dillman method14 was used to increase subject participation
Our present findings, combined with earlier findings from the
rates. Participants were paid $5.00 for each completed logbook
Staff Nurse Fatigue and Patient Safety Study,9 16 suggest that
page, with the maximum payment being $140.00. The study
critical care nurses have an important role in maintaining the
was approved by institutional review boards at the University
safety of seriously ill patients. The 502 nurses participating in
of Pennsylvania and Grand Valley State University.
the study reported catching themselves making an error on 350occasions,9 intercepting a colleague in the process of making an
error on 43 occasions, and discovering an additional 324 errors
The data from the study instruments were first summarised
made by other staff members. Some errors, such as discovering
using descriptive statistics and frequency tables. All narrative
that an incorrect medication had been dispensed by the
statements regarding discovered errors were transcribed verba-
pharmacy or that an inappropriate dose of a particular
tim. These errors were then classified into five categories using
medication had been ordered, were intercepted before they
the procedure developed for studying errors and near errors
reached the patient. The majority of errors (88%), however,
during the Staff Nurse Fatigue and Patient Safety Study.15 16
were discovered only after they had occurred.
Using exemplars to illustrate each type of discovered error, the
Medication errors, although the most common type of error
principal investigator and two nurse researchers with expertise
discovered by participants in this study, are not the only types
in critical care nursing classified all of the discovered errors into
of error that occur in a hospital setting. Several studies have
one of five mutually exclusive error categories (medication,
shown that equipment-related errors, procedural errors, chart-
procedural, charting, transcription and unable to classify
ing errors, and errors related to diagnostic studies and
Qual Saf Health Care 2008;17:117–121. doi:10.1136/qshc.2007.022699
Number and types of error discovered by 502 critical care nurses
Coworker about to give medications to wrong patient at 4 am
Antibiotics given to wrong patient twice, at noon and 6 pm
Found lactated Ringer’s solution hanging on acute renal failure patient
Pharmacy sent clonidine instead of Klonopin [clonazepam]
[Doctor] ordered three medications patient was allergic to
Pharmacy sent wrong antibiotic dose, label was right. Drug sent back to pharmacy
Found insulin drip hanging on a patient that was a different mix/ratio than had been hanging earlier, patient was receiving four times the ordereddose [of insulin]
Dialysis patient had received nafcillin 2 g IV q6 instead of 1 g as ordered for 3 days
Patient received 12 500 U bolus of heparin, patient ended up going back to OR
Patient with CHF to be receiving [IV] fluids at 21 cc/h, found fluids at rate of 121 cc/h when I took over care of patient at 11 pm
Doctor wrote order for medication to be given IV, drug has caused fatalities when given IV
RN wanted to change IM phenobarbital to IVP in patient with subarachnoid bleed
Scheduled mineral oil at the same time as Synthroid [levothyroxine], meds hadn’t been staggered to allow absorption
Post op pt was supposed to have Celebrex [celecoxib] before knee surgery—med given [after surgery]
IV push med attached to line but not infused
Dose of medication scheduled for 4 pm not given, found at midnight and given
Patient on insulin drip, blood sugars should have been obtained every hour
Respiratory [therapy] did not give scheduled treatment to [patient with] COPD
Received patient from OR, medications (Dobutrex [dobutamine] and epinephrine) not infusing, stopcock turned the wrong way
Someone gave a sickle cell crisis patient a tray without changing his 50% Venturi mask to nasal cannula, O2 saturation [dropped to] 69% in15 minutes and c/o pain
Anesthesiologist gave Neo-Synephrine [phenylephrine] bolus for low blood pressure when the arterial line was kinked, patient’s BP was okay
7:20 am found IVP/ventriculostomy was clamped and probably clamped from 11 pm to 7 am as no CSF drainage during that time and had 140 ccdrainage during preceding shift
Speech therapy [sic] changed the angle of the head of bed on patient with ventriculostomy
Respiratory therapy [sic] over-stimulated closed head injury patient with suctioning, ICP into 40s, patient became bradycardic
Found IV infusions of isotropic agents flowing out an open stopcock onto floor
Nitric oxide tank empty. Respiratory therapy did not switch tanks correctly, patient without nitric oxide for 10 minutes, called respiratory therapysupervisor
Agency RN taking care of a patient with a blood sugar of 23, not aware of hypoglycemic protocol, waiting for [doctor] to call back, I started D50.
Nurse did not write correct insulin order; wrote 5 U, supposed to be 15 U
Orders on medication administration record had added a zero to a dose of Decadron, increasing its dose 10 times more than ordered
Night nurse (who worked a 16-h shift) transcribed medication order incorrectly on MAR
Order for KCl written for today only X2, transcribed as BID
Incorrect order entry by unit secretary. Insulin sliding scale transcribed with wrong type of insulin
MI pt left off O2, but RN had charted that O2 was in useNight RN charted wrong dose of dopamine drip, caught it at 8:15 am
procedures are common.4 17 18 Almost a third of the errors
this study were critical care units that involve high-alert
discovered by participants involved procedural errors. Some of
medications and intricate calculations, complex care and special
these procedural errors were relatively minor (eg, pharmacy
procedures, it was not surprising that the type and frequency of
failing to pick up medications that had been discontinued)
errors made and discovered were similar across units. Other
whereas others (eg, injecting a medication through an arterial
researchers have documented that critical care units are
line or a speech therapist changing the elevation of the head of
extremely busy environments, observing on average 187
the bed for a patient with a ventriculostomy) could have
activities per patient per day.8 In addition, processes for
harmed the patient had they not been intercepted. Other
medication administration and healthcare procedures are
procedural errors discovered by critical care nurses that could
similar across healthcare institutions despite their organisa-
have resulted in serious adverse effects included excessively
tional size. These findings suggest that system and process-
vigorous suctioning in a patient with an increased intracranial
related factors should be examined for their role in error
pressure and failure to provide a nasal cannula to a patient in
prevention, discovery and correction. Finally, future studies
sickle cell crisis to increase oxygenation while eating.
should determine if high workloads and fatigue impair critical
According to the results of this study, there are no differences
care nurses’ vigilance and alertness to prevent, discover and
in the type and frequency of errors discovered by critical care
correct errors made by themselves and other members of the
unit or hospital size. Inasmuch as all of the units involved in
Qual Saf Health Care 2008;17:117–121. doi:10.1136/qshc.2007.022699
Pharmacy sent wrong antibiotic dose, label was right. Drug sent back to pharmacy
Pharmacist dispenses wrong dose of Solu-Medrol [methylpredisolone]
[Doctor] ordered three medications patient was allergic to
Doctor wrote order for medication to be given IV, drug has caused fatalities when given IV
Clonazepam dose was too high, called to get dosage reduced
Doctor ordered 35 cc bolus of D10W for low chemstrip on infant weighing 1.75 kg (protocol is 2 cc/kg).
Speech therapy [sic] changed the angle of the head of bed on patient with ventriculostomy
Respiratory therapy [sic] over-stimulated closed head injury patient with suctioning, ICP into 40s, patient became bradycardic
Nitric oxide tank empty. Respiratory therapy [sic] did not switch tanks correctly, patient without nitric oxide for 10 minutes, calledrespiratory therapy supervisor
Another RN took a verbal order for Tylenol 3 [paracetamol and codeine] on a patient with history of anaphylaxis to codeine
Patient with CHF to be receiving [IV] fluids at 21 cc/h, found fluids at rate of 121 cc/h when I took over care of patient at 11 pm
Night shift medicated patient with a med that was due at 9 am today and it is only given only 7 days, so an extra dose was given
Student nurse, orientee, new staff member
New nurse had patient with SBP in the 60s and on Cardizem [diltiazem], nurse didn’t know to turn off Cardizem and start dopamine
Agency RN taking care of a patient with a blood sugar of 23, not aware of hypoglycemic protocol, waiting for [doctor] to call back, Istarted D50.
Orders for evening potassium supplements accidentally removed from Kardex by secretary
Incorrect order entry by unit secretary. Insulin sliding scale transcribed with wrong type of insulin
During a code a drip was given out of sequence
Under dosing of labetalol drip on hypertensive, haemorrhagic CVA patient
Antibiotics ordered for 24 h were transcribed wrong, resulting in extra doses
Although critical care nurses reported discovering more errors
American nurses described in the National Sample of Registered
made by others (n = 367) than catching themselves about to
Nurses19 and an earlier sample of hospital staff nurses,20 as well
make an error or actually making an error,9 it is possible that
as representative of the membership of the American
they discovered and corrected more errors than were reported in
Association of Critical Care Nurses (J Medina, personal
their logbooks. Because participants recorded information about
communication, 2002). Although our response rate (43.7%) is
errors in their logbooks at home after the end of their work
lower than usually reported for surveys of healthcare provi-
shift, it is quite possible that they forgot about some of the
ders,21 this study required more effort than the usual survey
errors they discovered and corrected several hours earlier.
since subjects were required to respond to between 17 and 40
The relatively small number of participants and low response
items every day for 28 days. Because of the heavy subject
rate may limit the generalisability of these findings. However,
burden associated with this study, it is possible that those
the nurses who participated in this study are similar in terms of
participating in the study may not be representative of the
age, gender and ethnicity to the probability-based sample of
majority of critical care nurses. Since there were no differences
Types and origin of errors discovered by critical care nurses
Qual Saf Health Care 2008;17:117–121. doi:10.1136/qshc.2007.022699
Examples of errors intercepted by study participants
Pharmacy sent IV fluids labeled with my patient’s name but ordered for a different patient with the same last name
An order for Ativan was written in the wrong patient’s chart
Patient has asthma, sotalol was ordered, [doctor] notified of asthma, sotalol discontinued
Co-worker was about to give sublimaze instead of soluitrex
Pharmacy sent Norcuron [vecuronium] drip instead of morphine drip
Stopped nurse from giving a medication that patient was allergic to
Pharmacy dispensed the wrong dosage of a medication, caught it when I was about to give it to patient
Nurse was about to give double dose of Ativan to a patient
Checked dosage of digoxin, nurse was about to give 0.5 mg IV instead of 0.25 mg IV
Discovered Narcan [naloxone] vials that had expired 2 months ago
Blood bank sent incompatible blood, I did not give it, and sent it back to blood bank
Stopped RN (recent grad) from administering a med through an arterial line
Another RN was going to hang a unit of packed red blood cells on a new patient whose temperature was 102.5 without calling the doctor first (asrequired by unit policy)
Pharmacy not removing medications that were discontinued
Stopped a new ICU RN from doing a cardiac output and calculating other hemodynamic parameters before a chest X-ray was done to confirmplacement [of Swan-Ganz line]
Found tubes of morphine sulphate 5 mg in patient drawer without a label
RN flushing Quinton catheter was going to use 10 000 U heparin instead of 200 U heparin
Order incorrectly transcribed and patient could have been overdosed
A zero had been added to a dose of Decadron in the medication administration record, increasing its dosage to 10 times that ordered
Type of errors discovered by critical care nurses employed in
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young nurses Ergonomics 2006;49:457–69.
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*Four discovered errors with missing information regarding hospital size.
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experience, etc., between responders and non-responders (those
Scott L, Rogers A, Hwang W-T, et al. The effects of critical care nurse work hours onvigilance and patient safety. Am J Crit Care 2006;15:30–7.
who were interested and eligible to participate, but did not
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return any logbooks) we believe that the likelihood of a response
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Despite these limitations, this study suggests the role that
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correcting errors that had been made by other nurses and other
members of the healthcare team. Acknowledging the existence
Balas MC, Scott LD, Rogers AE. The prevalence and nature of errors and near errors
and effectiveness of this safety net is crucial; without
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Balas MC, Scott LD, Rogers AE. The prevalence and nature of errors and near errors
recognition that errors occur and their source, it will make
reported by critical care nurses. Can J Nurs Res 2006;38:21–41.
finding the root cause of errors more challenging and perpetuate
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a culture of blame. It is hoped that this study will provide a
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maximise patient safety and error prevention.
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Funding: This study was supported by grants from the Agency for Health Care
and Human Services, Health Resources and Services Administration, 2001.
Research and Quality (R01 HS11963-01), the American Nurses Foundation, and the
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Qual Saf Health Care 2008;17:117–121. doi:10.1136/qshc.2007.022699
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