54-63, Caliri 2/21/03 1:32 PM Page 54 KNOWLEDGE OF RESSURE ... · Pieper is a Professor/Nurse...
Transcript of 54-63, Caliri 2/21/03 1:32 PM Page 54 KNOWLEDGE OF RESSURE ... · Pieper is a Professor/Nurse...
The purpose of this study was to examine Brazilian nursing
students’ knowledge of pressure ulcers. Third- and fourth-
year undergraduate baccalaureate students at a public uni-
versity in Brazil (N = 83) were asked to provide demograph-
ic information, identify extracurricular activities (eg, read-
ing journals and articles and using the Internet to enhance
comprehension of pressure ulcer care), and complete the
Pressure Ulcer Knowledge Test. Students correctly answered
67.7% of the Pressure Ulcer Knowledge Test items. Students
who participated in extracurricular activities and used the
Internet had significantly higher Knowledge Test scores than
those who did not. Readings did not significantly impact the
Knowledge Test score. Generally, the students were found to
have low pressure ulcer knowledge, but that educational pro-
grams and the Internet have the potential to positively
impact nursing students’ knowledge of pressure ulcers.
Ostomy/Wound Management 2003:49(3):54-63
Globally, maintaining skin integrity and prevent-
ing pressure ulcers have traditionally been the
responsibility of nurses. The presence of pres-
sure ulcers in hospitalized patients has been identified
as a quality indicator in healthcare.1 Prevention
requires a systematic evaluation of the patient for the
risk of developing pressure ulcers and adoption of
appropriate preventive measures. Gray2 stated that it
was the responsibility of educational institutions to
ensure that nursing students obtain the necessary
knowledge for practice while they are still completing
their undergraduate program. Therefore, nursing edu-
cational programs need to ensure that students receive
the necessary knowledge for pressure ulcer prevention,
staging, and description. The purpose of this study was
to examine Brazilian nursing students’ knowledge of
pressure ulcers.
Literature ReviewInternationally, various researchers have investigated
the knowledge and clinical practice of nurses and nurs-
ing students concerning the prevention and treatment
of pressure ulcers. Several studies have been conducted
in the United States. Moody and colleagues3 presented
an intensive educational program about the pathogene-
sis, assessment, treatment, and prevention of pressure
ulcers to nurses and physicians. This program resulted
in a decrease in pressure ulcers, decreased use of spe-
cialty beds, and cost savings. Bostrom and Kenneth4
surveyed staff nurses about their knowledge of pressure
54 OstomyWound Management
KNOWLEDGE OF PRESSUREULCERS BY UNDERGRADUATENURSING STUDENTS IN BRAZIL– Maria Helena Larcher Caliri, DNS, RN; Margareth Yuri Miyazaki, RN; and Barbara Pieper, PhD,
RN, FAAN, CWOCN
Ms. Caliri is Associate Professor and Ms. Miyazaki is a former BSN nursing student, Ribeirao Preto School of Nursing,University of Sao Paulo, Ribeirao Preto, Brazil. Dr. Pieper is a Professor/Nurse Practitioner, College of Nursing, Wayne StateUniversity, Detroit, Mich. Please address correspondence to: Maria Helena Larcher Caliri, DNS, RN, Assistant Professor,Ribeirao Preto School of Nursing, University of Sao Paulo, Ribeirao Preto, SP 14040-902, Brazil; email: [email protected].
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ulcer risk factors, interventions for maintaining skin
integrity, and factors that hinder preventive care. They
reported a high knowledge of risk factors, but found
that nurses lacked interest and gave prevention a low
priority in care. Lack of staffing and costs were identi-
fied as additional barriers to pressure ulcer preventive
care. Hayes, Wolf, and McHugh5 examined the impact
of a pressure ulcer educational program on nurses’
knowledge of risk, assessment, and treatment. Nurses in
the pressure ulcer knowledge program versus a control
group improved their knowledge. Beitz and colleagues6
identified that professional and nonprofessional nurs-
ing staff members were poorly informed in several
basic aspects of pressure ulcer care. Nursing staff
desired more wound care information. Pieper and
Mott7 noted that the more recently nurses had heard a
lecture or read an article, the higher (significantly) their
knowledge about pressure ulcers. Knowledge scores
were not related to nurses’ educational background,
age, or years of work experience.
In Britian, Hill8 observed nurses providing patient
care and subsequently tested them about pressure
ulcer prevention. Nurses were knowledgeable about
dressings and nutritional assessment, but failed to
implement their knowledge of pressure ulcer risk
assessment. Hill8 recommended educating nursing
students about pressure ulcers and updating nurses’
knowledge. Russell9 queried nurses from two patient
care units about their pressure ulcer knowledge and
practice. She identified gaps in knowledge, such as
capillary pressures and pressure ulcer staging, and
recommended more post-basic education about
pressure ulcer prevention and treatment.
Maylor and Torrance10 surveyed nurses
about their knowledge and attitude about
pressure ulcers. They could not identify a
knowledge deficit. The failure to prevent
pressure ulcers was suggested as a prob-
lem with individual or organizational
motivation. In contrast, Gerrish and col-
leagues’11 survey and audit of the knowl-
edge of risk assessment and its documen-
tation noted deficiencies in both.
Mockridge and Anthony12 noted nurses’
knowledge of pressure ulcer treatment
and healing was higher for those ranked
at the senior versus junior level.
A study of 34 nurses in Hong Kong examined
knowledge and practice of preventing and treating
pressure ulcers in the elderly.13 Nurses had sound
knowledge of prevention and treatment, but inconsis-
tencies occurred in practice. In the Netherlands,
researchers studied the extent to which pressure ulcer
preventive methods were used and nurses’ knowledge
and beliefs regarding the usefulness of these methods.14
The study was based on a consensus committee report.
Nurses reported using many preventive methods that
the consensus committee had judged as not useful and
not using those judged as useful. The authors conclud-
ed that a knowledge deficit existed with regard to the
information from the consensus committee.14 A
Swedish study examined nurses’ knowledge of pressure
ulcer risk, prevention, and treatment for patients with
hip fractures.15 Nurses primarily used repositioning,
lotion, and pressure reducing surfaces; whereas, nutri-
tional support, reduction of shear and friction, and
patient education were only employed to a small
extent. The authors concluded that nursing staff knowl-
edge and documentation could be improved.15
Few studies could be found about nursing students.
Gould16 surveyed nursing schools about pressure ulcer
education. Faculty believed that pressure ulcer content
received a low priority. It tended to be presented at the
beginning of a student’s program and rarely updated or
discussed again. Although the textbooks in the study
have been revised since the study was published,
Vogelpohl and Dougherty17 noted that nursing text-
books tended to present pressure ulcer content sparse-
ly; at times, it was incomplete and inaccurate. They
March 2003 Vol. 49 Issue 3 55
KEY POINTS• The results of this study, conducted in Brazil, confirm that knowl-
edge of pressure ulcer prevention and care and dissemination ofresearch findings remains a global concern.
• In addition to the well-known traditional barriers faced by manypracticing clinicians, language and resource barriers are commonin many countries.
• The results of this study are encouraging, however; the availabilityof special programs and resources, including the Internet, made adifference in student knowledge.
• Because pressure ulcer prevention and care are important nursingfunctions, educators all over the world must find ways to bridgethe apparent knowledge-research gap and provide up-to-date basicand continuing education.
Ostomy/Wound Management 2003;49(3):54–63
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concluded that students were dependent upon clinical
experience, self-study, and the faculty to enhance their
background regarding pressure ulcer risk, prevention,
and treatment.
In Brazil, Rabeh and Caliri18 conducted a study to
identify the teaching-learning experiences of 31 stu-
dents in the last term of the undergraduate nursing
program in a private school. In that sample, 97% of
students cared for patients with pressure ulcers, hav-
ing acquired their skills in their Fundamentals of
Nursing course. The measure most frequently used for
prevention was postural alignment. They also
employed practices that are ill-advised, such as the
ring cushion, local massage, and soap and povidone
iodine for wound cleansing. The authors concluded
that students’ knowledge about pressure ulcer preven-
tion and treatment was low and care, at times, inap-
propriate.18 The above findings were similar to
Pearson and colleagues,19 who reported pressure ulcer
prevention and treatment varied, ranging from turn-
ing the patient and using occlusive dressings to sun-
shine exposure and airing the wound. The authors
concluded that despite years of attention to pressure
ulcer prevention and treatment, pressure ulcers
remained a significant problem in Australia.19
Rangel and colleagues20 interviewed 33 nursing stu-
dents at a university in Brazil about their pressure ulcer
care. Less than half of the students (48%) had delivered
prevention or treatment to patients at risk for pressure
ulcers or with pressure ulcers; 33% had never provided
this care; and 18% had only observed the care. The stu-
dents who performed pressure ulcer prevention and
treatment care cited an average of 10.2 pressure ulcer
care measures for these patients; whereas, those who
had never provided the care or only observed proce-
dures cited an average of one measure. Among the
measures utilized for treatment, 21% were considered
to be inadequate according to standardization in scien-
tific literature. The authors concluded that nursing
practice impacted students’ knowledge of pressure ulcer
prevention and treatment.20
In summary, findings about nurses’ knowledge about
pressure ulcers vary. Nurses first learn about pressure
ulcers in their educational programs. A few authors
conclude that knowledge is appropriate, but implemen-
tation of care is weak; others have identified low
knowledge or misconceptions about pressure ulcers. A
common thread is that continued education is neces-
sary. Knowledge for students can be achieved through
theoretical and practical teaching in undergraduate
nursing programs; by participating informally in
optional courses, lectures, and extracurricular activities,
and/or by reading articles and information on the
Internet and the like.
Worldwide, nurses are concerned about knowledge
of pressure ulcer prevention and treatment as evi-
denced by national studies of nurses and development
of consensus statements. Since 1998 in Brazil, the
guideline, Pressure Ulcers in Adults: Prediction and
Prevention21 has been available in Portuguese on the
website of the University of São Paulo at Ribeirão Preto
College of Nursing. The document is also disseminated
during classes, courses, and lectures. The purpose of
this study was to examine Brazilian nursing students’
knowledge of pressure ulcer prevention, staging, and
wound description. The following research questions
were examined:
1. What is nursing students’ knowledge about
pressure ulcers?
2. Is nursing students’ knowledge associated with
other learning methods such as extracurricular
activities, reading, or use of the Internet?
MethodSubjects and setting. The study was completed
with students (N = 83) at the end of their third or
fourth years of the undergraduate baccalaureate nurs-
ing education at a public university in São Paulo
State, Brazil. A sample of 83 has the power of .87 to
detect a large effect, 2-tail alpha = .05. All students in
the third and fourth years (N = 166) were invited to
participate. Fifty-three students from the third year
(63.9% of the class) and 30 students from the fourth
year (36.1% of the class) agreed to participate. The
difference in participant numbers between the third-
year and fourth-year students was due to difficulties
locating the latter because they were in a full-time
period of clinical training in different healthcare
institutions, often far from where data were collected.
Because the students had studied the pressure ulcer
curriculum during the second year of their education
and did not differ in their total score on the Pressure
Ulcer Knowledge Test, students were considered as a
total group for statistical analyses.
56 OstomyWound Management
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58 OstomyWound Management
The research
project was eval-
uated and
approved by the
institution’s
Committee of
Regulations and
Ethics. The study
was explained to
the students and
signed consent
was obtained.
Participation or
nonparticipation
did not affect the
students’ grades.
Data collection
occurred during
the last week of
class in
December 2000.
Instrument. The Pressure Ulcer Prevention Survey
was adapted from the instrument developed by
Pieper7,22 for use in this study. The instrument consisted
of demographic questions, questions about extracurric-
ular activities undertaken to learn about pressure
ulcers, and the Pressure Ulcer Knowledge Test. The
demographic items included sex, age, race, and acade-
mic year classification. In addition, information was
obtained about participation in extracurricular learn-
ing activities, such as attending conferences or special
lectures about pressure ulcers, reading articles and/or
books about pressure ulcers in addition to materials
assigned by the faculty, and using the home page about
pressure ulcer prevention and treatment. The Pressure
Ulcer Knowledge Test7,22 was translated and adapted to
Portuguese. After the initial translation, it was re-trans-
lated to English to validate that the items were the same
as the translation. To examine the instrument for clari-
ty and comprehension, eight students who did not par-
ticipate in the study completed the instrument. These
students reported no difficulty in reading or under-
standing the items. Content of the test was considered
basic care for nursing practice. In its adaptation to
Portuguese, 46 of the original 47 questions were main-
tained. The item related to vascular boots was deleted
because this product was not used in Brazil. The item
about heel protectors was modified to reflect the prac-
tice in Brazilian hospitals of placing water-filled gloves
on the heels. Water-filled gloves are viewed as an inex-
pensive method to decrease heel pressure. However,
Williams23 tested gloves filled with 260 mL of water and
found heel pressures were higher on the gloves than
resting on a mattress.
The 46 questions on the Pressure Ulcer Knowledge
Test included seven items about pressure ulcer staging,
seven items about wound description, and 32 items
about pressure ulcer risk. The items were answered as
true or false; items the students did not know were
considered incorrect. Because the goal of the study was
to examine total knowledge, items were tabulated for a
total correct score. The coefficient alpha value for all
students for the total score was .63.
Procedures. The students present at the teaching
institution on the dates established for data collection
were invited to participate. They were assured that their
identities would be kept secret and that the informa-
tion provided would be confidential. Data collection
proceeded with the students’ completion of the instru-
ment, which took approximately 20 minutes. The data
were submitted to analysis after they had been tran-
scribed to electronic tables using the EXCEL and EPI-
INFO applications.
Data analysis. The sample of students and number
of correct responses for an item were described using
percentages and frequencies. The Mann-Whitney U test
was performed to examine difference between groups.
ResultsSubjects. From the 83 subjects comprising the sam-
ple, 53 (63.9%) were in the third year and 30 (36.1%)
were in the fourth year of the undergraduate program
(see Table 1). Most participants (38.6%) were 21 years
old or younger (75.9% of the total number of students
were 23 years old or younger), Caucasian (89.2%), and
female (96.4%). Only two students had work experi-
ence as nurses in the position of a nurse auxiliary or
technician. Third- and fourth-year students did not dif-
fer by age or sex.
Pressure ulcer knowledge. The first research ques-
tion examined students’ knowledge about pressure
ulcers. Students correctly answered 67.7% of the
Pressure Ulcer Knowledge Test items (M = 31.16, SD =
4.19, range 20 to 41). No items were answered correctly
TABLE 1DESCRIPTION OF
STUDENTPARTICIPANTS (N = 83)
Characteristic
Age in Years<22 22 – 23
24 - 2526 – 27> 27
SexFemaleMale
RaceWhite Other (Asian;African American)
n
3231135 2
803
749
%
38.637.315.76.02.4
96.43.6
89.210.8
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60 OstomyWound Management
or missed by all stu-
dents. Of the 46
items, only 26
(56.5%) were
answered correctly
by 71.1% to 98.8%
of students. Items
with 90% correct
responses (a high
knowledge level)
included content
about pressure edu-
cational programs,
incontinence, docu-
mentation, and
nutrition, to name a
few (see Table 2). In
contrast, 20 items
(43.5%) were
answered correctly
by 60.2% to 13.3%
of participants.
Items with the low-
est correct scores
(poor knowledge,
with less than 50%
of students respond-
ing correctly)
included many time-
related items about
repositioning (see
Table 3).
Extracurricularlearning activities,reading, and use ofthe pressure ulcerknowledge website.The second research
question examined
the impact of
extracurricular
learning activities,
reading, and use of
the Internet on the
students’ pressure
ulcer knowledge.
Sixty-three (63,
TABLE 2PRESSURE ULCER KNOWLEDGE TEST ITEMS ANSWERED
CORRECTLY BY 90% OR GREATER OF THE STUDENTS (N = 83)
For persons who have incontinence, skin cleaning should occur at the time ofsoiling and routine intervals. (T)
Educational programs may reduce the incidence of pressure ulcers. (T)All care given to prevent or treat pressure ulcers must be documented. (T)Bony prominences should not have direct contact with one another. (T)An adequate dietary intake of protein and calories should be maintained dur-
ing illness. (T)Risk factors for development of pressure ulcers are immobility, incontinence,
impaired nutrition, and altered level of consciousness. (T)All individuals should be assessed on admission to a hospital for risk of pres-
sure ulcer development. (T)Every person assessed to be at risk for developing pressure ulcers should be
placed on a pressure-reducing bed surface. (T)Stage IV pressure ulcers are a full-thickness skin loss with extensive destruc-
tion, tissue necrosis, or damage to muscle, bone, or supporting structure. (T)A turning schedule should be written and placed at the bedside. (T)Skin, macerated from moisture, tears more easily. (T)A blister on the heel is nothing to worry about. (F)Friction may occur when moving a person up in bed. (T)
nItem
82
82818181
81
80
80
80
79787875
%
98.8
98.897.697.697.6
97.6
96.4
96.4
96.4
95.29494
90.4
TABLE 3PRESSURE ULCER KNOWLEDGE TEST ITEMS ANSWERED
CORRECTLY BY 50% OR LESS OF THE STUDENTS (N = 83)
The head of the bed should be maintained at the lowest degree of elevation(hopefully, no higher than a 30 degree angle) consistent with the medical con-dition. (T)
Undermining is the destruction that occurs under the skin. (T)Donut devices/rings cushions help to prevent pressure ulcers. (F)A low humidity environment may predispose a person to pressure ulcers. (T)Slough is yellow or creamy necrotic tissue on a wound bed. (T)Stage II pressure ulcers are full-thickness skin loss. (F)Persons confined to bed should be repositioned every 3 hours. (F)It is important to massage bony prominences. (F)All individuals at risk for pressure ulcers should have a systematic skin inspection
at least once a week. (F)In a side lying position, a person should be at a 30 degree angle with the bed. (T)Heel protection with water filled gloves relieves pressure on the heels. (F)The incidence of pressure ulcers is so high that countries appoint panels to
study risk, prevention, and treatment. (T)A person who cannot move self should be repositioned while sitting in a chair
every two hours. (F)A low Braden score is associated with increased pressure ulcer risk. (T)Persons, who can be taught, should shift their weight every 30 minutes while sit-
ting in a chair. (F)
n
40
3837363534333231
272014
11
1111
%
48.2
45.844.643.442.241
39.838.637.3
32.524.116.9
13.3
13.313.3
Activity
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75.9%) students participated in extracurricular activities related to pressure
ulcers. Examples of extracurricular activities are presented in Table 4. Sixty-
five (65, 78.3%) students had read articles, texts, or books on pressure
ulcers during their undergraduation studies. Among the material cited were
texts provided in courses and journal club, dissertations or theses, bandag-
ing manuals, and medical and surgical nursing textbooks. Twenty-one stu-
dents (21, 25.3%) utilized the website on the prevention and treatment of
pressure ulcers; 17 of the students used it two to five times.
Students who participated (M = 31.71, SD = 4.37) in extracurricular
activities had significantly higher Pressure Ulcer Knowledge scores than
those who had not (M = 29.4, SD = 3.05; Mann-Whitney non-parametric z
= -3.83, P < .001). The higher number of correct answers on the Pressure
Ulcer Knowledge Test was associated with use of the website (M = 33, SD =
4.74) as opposed to those who had not used the Internet (M = 30.9, SD =
3.69; Mann-Whitney non-parametric z = -2.29; P = .02) (M = 33, SD =
4.1). In contrast, students who had read textbook or journal articles about
pressure ulcers did not have significantly higher Pressure Ulcer Knowledge
Test scores compared to those who had not consulted these sources.
Students’ comments. Forty-nine students provided comments about par-
ticipation in the study. Students considered taking the Pressure Ulcer
Knowledge Test an important way to evaluate their theoretical and clinical
practice knowledge about pressure ulcers. They stated that knowledge tests
such as this may contribute to the improvement of undergraduate nursing
education programs. They commented that attending extracurricular lec-
tures and seminars about pressure ulcers enhanced their knowledge.
Students did not write comments about the Internet as a learning tool.
DiscussionThis study examined Brazilian nursing students’ knowledge of pressure
ulcers and practices that may enhance this knowledge. Generally, students
were found to have low Pressure Ulcer Knowledge Test scores. Students’
scores were higher if they had participated in extracurricular activities
about pressure ulcers or used the website about pressure ulcers. The test
included pressure ulcer nursing care practices that were clearly outdated
and incorrect and which are still used by nurses in Brazilian hospitals and
prescribed by physicians. Students are novice practitioners; learning in
environments that espouse proper care is important. Lamond and Farnell24
studied expert and novice nurses’ decisions about the treatment of pressure
ulcers. Nurses were given a photograph of a pressure ulcer along with
descriptive information. Experts were more accurate in their choice of
treatment and focused on specific information to make the decision.
Possibly, the low scores of these students reflect their novice level of knowl-
edge. Nevertheless, the low knowledge level about pressure ulcers is a con-
cern. Fernandes25 stated that the success of pressure ulcer prevention in hos-
pitalized patients greatly depends on the education of healthcare profes-
sionals, patients, and their relatives for the adoption of and adherence to
adequate measures. Although in its infancy in Brazil, this statement also
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62 OstomyWound ManagementOstomyWound Management
holds true for home care, because many patients at risk
for developing ulcers or who have ulcers are presently
receiving care from relatives at home. Nurses in the
basic (community) health units must provide guidance
to these family members.
Nurses must be able to seek relevant information
about pressure ulcer prevention and care. Textbooks
may not be up-to-date because of the potential delay
between writing and publishing. In addition, content
ages as students use the books over time.
Thirteen nursing journals are published in Brazil
with articles written in Portuguese. Because of the cost
of paper and printing, these journals are limited in size
and numbers of issues per year. This limits the venue
for nurses to obtain new information. Universities sub-
scribe to many international nursing journals, but
Brazilian nursing students primarily speak and read
Portuguese; thus, limiting available information.
Information in journals and textbooks needs to be use-
ful for the decisions made about pressure ulcer preven-
tion and treatment, and currently available research
does not appear to reach the nurses who make deci-
sions about patient care at the bedside. Gould26 noted
nurses’ failure to implement research results and related
this to the failure of nursing faculty to include relevant
materials in educational programs. Globally, the lack of
research implementation also must be examined in
terms of language and resource barriers.
Attending extracurricular activities such as special
lectures and courses requires motivation. Students at
this university in Brazil had opportunities to participate
in special courses and lectures about wound care and
pressure ulcers. These programs featured local and
international experts in pressure ulcer and wound care.
Students selected these programs because of a special
interest in the topic; they paid a fee to attend these pro-
grams. They were active participants in the learning
process. Students who attended these programs had a
higher level of pressure ulcer knowledge, underscoring
the fact that education about pressure ulcer prevention
and wound care is a life-long effort, requiring active
engagement of the learner.
The Internet provides worldwide information to stu-
dents. Web-based instruction requires transformation
from traditional teaching strategies to directed inde-
pendent learning.27 Teikmanis and Armstrong28 used an
online discussion board to teach pathophysiology to
baccalaureate nursing students. Their results suggested
that this assignment promoted greater participation
and feedback among students. Because of the cost,
computers are not generally owned by Brazilian nurs-
ing students, but they are available at university
libraries. Internet sites expose students to a variety of
information because of links within the system. The
student is an active participant in making decisions
about the depth and breath of the content presented.
The most recent literature also can be examined.
Although few students (n = 21) used the Internet, those
who did had higher knowledge scores. The Internet will
probably continue to evolve as an important education-
al tool for pressure ulcer information.
LimitationsThis study had limitations. The sample size was
small and students from only one university were par-
ticipants. The Pressure Ulcer Knowledge Test needs
further testing with students in Portuguese because
the reliability was .63. This may be a reflection of the
nature of items on the test or the way it was adminis-
tered. Students may not have considered items care-
fully because the test did not affect their course grade.
The study needs to be replicated with a larger and
more diverse sample. Examining students’ nursing
practice with knowledge is critical. These graduates
primarily direct patient care provided by other levels
of nursing personnel in Brazil. If they lack the neces-
sary knowledge about pressure ulcer prevention,
assessment and care, the information they give to oth-
ers will be insufficient.
TABLE 4EXTRACURRICULAR ACTIVITIES
COMPLETED BY STUDENTS (N = 83)
Course about pressure ulcers and otherchronic wounds
Some combination of course, lecture,journal club, honors program
Lecture about pressure ulcers and otherchronic wounds
Course and lecture togetherNone
nItem
24
18
16
520
%
28.9
21.7
19.3
624.1
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March 2003 Vol. 49 Issue 3 63
ConclusionNursing professionals must be educated to intervene
positively in the process to prevent and treat pressure
ulcers. To that end, knowledge and skills both for direct
care to the patient and management of human
resources and materials are necessary; hence, the
importance of quality theoretical and practical teach-
ing. Knowledge about pressure ulcer prevention and
treatment must be achieved in undergraduate educa-
tional programs where students must gain knowledge
and skill to provide safe patient care in regard to main-
taining skin integrity. Pressure ulcer risk assessment
based on knowledge of risk factors, prevention, and
early intervention is crucial to decreasing pressure
ulcers.29 Research-based nursing practice is frequently
stressed in educational endeavors. Research utilization
activities with students about pressure ulcers may lead
to positive outcomes in pressure ulcer prevention, just
as it has in clinical settings.30 Continuing educational
programs and use of the Internet have the potential to
positively impact nursing students’ knowledge. - OWM
AcknowledgmentsThe authors wish to thank Dr. Cláudia B. dos Santos
for the statistical analysis of the data and Dr. Miyeko
Hayashida for her assistance in the use of the EPI-
INFO program.
This study was partially supported by grants from
Fundação de Amparo à Pesquisa do Estado de Sao
Paulo - FAPESP (Proc. No. 2000/05458-5) and
Conselho Nacional de Desenvolvimento Científico -
CNPq (PIBIC/USP).
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