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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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Special considerations while measuring blood pressure01:28

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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.
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Sites for measruring blood pressure01:21

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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.
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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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Pre-Procedural Guidelines for Assessing Blood Pressure01:10

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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...
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Related Experiment Video

Updated: Nov 4, 2025

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
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Assessing the Reliability of Intraocular Pressure Measurements Using Rebound Tonometry.

Tony Realini1, Brian McMillan1, Ronald L Gross2

  • 1Department of Ophthalmology and Visual Sciences, West Virginia University, Morgantown, WV.

Journal of Glaucoma
|May 28, 2021
PubMed
Summary

The iCare rebound tonometer shows lower test-retest variability and good reproducibility compared to Goldmann tonometry, making it valuable for monitoring intraocular pressure (IOP) in glaucoma patients.

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Area of Science:

  • Ophthalmology
  • Medical Devices
  • Glaucoma Management

Background:

  • Intraocular pressure (IOP) monitoring is crucial for glaucoma management.
  • Goldmann tonometry is a standard but can exhibit variability.
  • Rebound tonometry (RT) offers a potentially more stable alternative.

Purpose of the Study:

  • To evaluate the intraoperator, interoperator, and interdevice reliability of the iCare rebound tonometer (RT, ic100).
  • To compare the test-retest variability of RT with Goldmann tonometry.

Main Methods:

  • Three prospective cross-sectional studies were conducted with adult patients.
  • Study 1: Compared intraoperator variability of RT versus Goldmann tonometry.
  • Studies 2 & 3: Assessed interoperator and interdevice reproducibility of RT.

Main Results:

  • RT demonstrated significantly lower within-subject variance (0.757) than Goldmann tonometry (2.471).
  • Interoperator reproducibility for RT was good (ICC 0.75-0.78).
  • Interdevice reproducibility for RT was good to excellent (ICC 0.87-0.89).

Conclusions:

  • The iCare rebound tonometer exhibits lower measurement variability than Goldmann tonometry.
  • Good interoperator and interdevice reproducibility support RT's utility for IOP monitoring.
  • RT aids clinicians in assessing glaucoma therapy effectiveness and IOP control consistency.