Heart sound simulation: how useful for critical care nurses?

Area of Science:

• Cardiovascular Medicine
• Medical Education
• Nursing Practice

Background:

• Critical care nurses require proficient skills in recognizing heart sounds for accurate patient assessment.
• Traditional methods of learning heart sounds may not adequately prepare nurses for clinical challenges.
• The effectiveness of simulation-based training in enhancing cardiac auscultation skills is an area of interest.

Purpose of the Study:

• To evaluate the impact of a heart sound simulator teaching program on critical care nurses' skill in recognizing heart sounds.
• To assess the retention of learned skills over a 3-week period.
• To explore correlations between skill acquisition, years of experience, and self-perceived knowledge.

Main Methods:

• Forty critical care nurses underwent a 2-hour teaching program utilizing a heart sound simulator.
• Pretest and two posttest assessments were administered to measure recognition of heart sounds.
• Data analysis included t-tests to compare scores and correlation coefficients to examine relationships.

Main Results:

• A statistically significant 10-point increase in mean test scores was observed from pretest to posttest.
• Skill improvement was sustained at a second posttest conducted 3 weeks later.
• Nurses in medical intensive care and coronary care units demonstrated higher scores; experience and self-assessment showed low correlation with skills.

Conclusions:

• Simulation-based training using a heart sound simulator is an effective method for improving critical care nurses' cardiac auscultation skills.
• The acquired skills are retained over a short-term period.
• Further investigation into factors influencing heart sound recognition and the utility of self-assessment is warranted.