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Related Concept Videos

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...
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
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
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 Fluid Pressure01:16

Measurement of Fluid Pressure

Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...
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.

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Related Experiment Video

Updated: Jun 21, 2026

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
09:03

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye

Published on: June 20, 2015

[Measuring intraocular pressure by different methods].

J Lamparter1, E M Hoffmann

  • 1Universitäts-Augenklinik Mainz, Deutschland. lamparter@augen.klinik.uni-mainz.de

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|August 5, 2009
PubMed
Summary
This summary is machine-generated.

Tonometry measures intraocular pressure (IOP), crucial for eye health. New devices aim for accurate IOP measurement, overcoming limitations of traditional methods like Goldmann applanation tonometry.

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Area of Science:

  • Ophthalmology
  • Biomedical Engineering

Background:

  • Intraocular pressure (IOP) measurement is vital for diagnosing and managing eye conditions.
  • Goldmann applanation tonometry is the established gold standard but has limitations.
  • Factors like patient position and corneal properties influence IOP readings.

Purpose of the Study:

  • To review and compare various tonometry methods for intraocular pressure measurement.
  • To highlight the advantages and disadvantages of novel IOP measurement techniques.
  • To guide the selection of appropriate tonometry methods for clinical practice.

Main Methods:

  • Review of existing literature on tonometry techniques.
  • Description of Goldmann applanation tonometry.
  • Overview of newer methods: noncontact tonometry, Tono-Pen, ICare tonometer, dynamic contour tonometry, TGDc-01 tonometry, and ocular response analyzer.

Main Results:

  • Traditional Goldmann applanation tonometry is compared against newer devices.
  • Newer tonometry methods offer potential improvements in accuracy and ease of use.
  • Each method has specific advantages and limitations impacting IOP measurement interpretation.

Conclusions:

  • No single tonometry method is universally superior; selection depends on clinical context.
  • Understanding the strengths and weaknesses of each technique is essential for accurate IOP assessment.
  • Advancements in tonometry aim to provide more precise 'true IOP' measurements, aiding patient care.