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Related Concept Videos

Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

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Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
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Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

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When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
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Measurement of Blood Pressure01:17

Measurement of Blood Pressure

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Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
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Sites for measuring blood pressure01:21

Sites for measuring blood pressure

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Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
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Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

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To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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Related Experiment Video

Updated: Mar 23, 2026

High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
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Systolic Time Intervals and New Measurement Methods.

Kouhyar Tavakolian1

  • 1Electrical Engineering Department, University of North Dakota, Grand Forks, USA. kouhyar@und.edu.

Cardiovascular Engineering and Technology
|April 7, 2016
PubMed
Summary

New, less cumbersome methods for measuring systolic time intervals (STIs) are enhancing the assessment of left ventricular function. These advancements offer novel applications for diagnosing and predicting cardiac diseases.

Keywords:
Electromechanical delay (EMD)Left ventricular ejection fraction (LVEF)Left ventricular ejection time (LVET)Pre-ejection period (PEP)

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Area of Science:

  • Cardiology
  • Cardiac Physiology
  • Diagnostic Tools

Background:

  • Systolic time intervals (STIs) are established indicators of left ventricular (LV) function.
  • Traditional methods for recording STIs can be cumbersome and limit widespread clinical application.

Purpose of the Study:

  • To review recent advancements in recording systolic time intervals.
  • To explore novel applications of STIs in diagnosing and prognosing cardiac diseases.

Main Methods:

  • Review of current literature on novel methods for recording cardiac timings.
  • Analysis of the diagnostic and prognostic potential of these updated STI techniques.

Main Results:

  • Development of less cumbersome methods for acquiring STIs.
  • Renewed interest and identification of new applications for STI measurements.

Conclusions:

  • Novel STI recording techniques improve the assessment of LV function.
  • These advancements hold significant potential for the diagnosis and prognosis of various cardiac conditions.