Nurses’ knowledge about the principles of measuring blood pressure and factors determining its value

Abstract

Background Measuring blood pressure (BP) is a key professional
skill for nurses. Correct methods for taking blood
pressure are taught very early in nursing education, but in
practice the rules are rarely followed. The aim of this work
is to show the level of knowledge necessary when carrying
out traditional measurements of blood pressure in a group
of qualified nurses.

Material and methods This research is based on 1108 people
(F — 1089, M — 19; age 21–60; work experience 0–37
years). The research was carried out in 2007–2009 using
diagnostic survey questionnaires. Statistical analysis was
carried out using the STATISTICA programme, a p value
≥ 0.05 was regarded as significant.

Results Less than half of those taking part showed the
necessary ability to inflate the sphygmomanometer cuff
(36.5%) and proper deflation speed (46.1%). The influence
of the size of the cuff on blood pressure results was
correctly noted by just 13.7% of those questioned and the
location of the lower edge of the cuff was shown by 53.1%.
The rule that the cuff should be placed at the same level as
the heart was known by 74.2%. Those questioned showed
a good knowledge of the factors which can influence blood
pressure.

The correct answers of the respondents was significantly
affected by: age, family situation, place, position and seniority,
and the form of postgraduate education.

Conclusion Those questioned showed an average level of
knowledge about the rules recommended while measuring
blood pressure. It is vital to have frequent, regular and up-
-to-date training for nurses in order to follow the rules for
measuring blood pressure.