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Related Experiment Videos

Measurement of pulsus paradoxus.

L M Sulzbach

    Focus on Critical Care
    |April 1, 1989
    PubMed
    Summary

    Pulsus paradoxus, a drop in systolic blood pressure during inspiration, indicates potential cardiac issues. Critical care nurses must master its measurement techniques for accurate patient assessment.

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    Area of Science:

    • Cardiology
    • Physiology

    Background:

    • Pulsus paradoxus is a clinical sign characterized by a significant drop in systolic blood pressure during inspiration.
    • A drop greater than 10 mm Hg during normal inspiration is considered abnormal.
    • The underlying mechanism involves impaired left ventricular filling due to increased right ventricular filling during inspiration, exacerbated by pericardial fluid accumulation.

    Purpose of the Study:

    • To highlight the clinical significance of pulsus paradoxus.
    • To educate critical care nurses on the importance of recognizing and measuring pulsus paradoxus.
    • To familiarize nurses with the methods for assessing this hemodynamic change.

    Main Methods:

    • Palpation of the pulse.
    • Cuff sphygmomanometry.
    • Analysis of arterial wave form.

    Main Results:

    • Pulsus paradoxus is defined by a systolic blood pressure drop exceeding 10 mm Hg during inspiration.
    • Accurate measurement requires familiarity with multiple techniques.
    • Skilled nurses can reliably detect this significant hemodynamic change.

    Conclusions:

    • Pulsus paradoxus is a crucial indicator of hemodynamic compromise.
    • Critical care nurses play a vital role in its detection and management.
    • Proficiency in measurement techniques ensures timely and accurate patient assessment.

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