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Related Concept Videos

Sites for measuring blood pressure01:21

Sites for measuring blood pressure

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
Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

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

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

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...
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

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 stethoscope.
Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the patient.
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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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Variability in local pressures under digital tourniquets.

S D Middleton1, P J Jenkins2, A Y Muir3

  • 1Orthopaedic Department, Royal Infirmary of Edinburgh, Edinburgh, UK scottmiddleton@doctors.org.uk.

The Journal of Hand Surgery, European Volume
|June 6, 2013
PubMed
Summary
This summary is machine-generated.

Non-pneumatic digital tourniquets show significant pressure variability, with some devices exerting dangerously high pressures. Further research is needed to ensure safe and effective use of these medical devices.

Keywords:
National Patient Safety Agency (NPSA)Tourniquetdigital tourniquetfinger tourniquetpressuresafety

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Area of Science:

  • Medical Devices
  • Biomedical Engineering
  • Patient Safety

Background:

  • Complications from digital tourniquet use and retention prompted safety warnings.
  • Guidance recommends CE-marked tourniquets and discourages surgical gloves.
  • Limited data exists on the comparative properties, efficacy, and safety of non-pneumatic digital tourniquets.

Purpose of the Study:

  • To investigate the variability of pressures exerted by non-pneumatic digital tourniquets.
  • To compare the physical properties of different digital tourniquet devices.

Main Methods:

  • Utilized a Tekscan FlexiForce sensor to measure applied force and surface pressures.
  • Tested Toe-niquet™, T-Ring™, and surgical glove 'roll down' tourniquets on finger models.
  • Analyzed pressure variations based on tourniquet type and finger size.

Main Results:

  • Significant differences in pressure were observed between tourniquet types (p<0.001) and finger sizes (p<0.001).
  • Toe-niquet™ produced the highest mean pressure (1560 mmHg).
  • Larger surgical glove sizes (size 8) produced the lowest mean pressure (25 mmHg).

Conclusions:

  • Anticipating and regulating pressures from non-pneumatic tourniquets is challenging.
  • Defining safe application times and surface pressures is difficult.
  • Further research is required to model pressure effects and identify safe, effective digital tourniquets.