Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

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)

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...
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.  
Step 3: Assess the patient's forehead...
Assessment of blood pressure in brachial artery(one-step method)01:15

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

This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
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...
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.
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.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A Human Pharmacogenomics Approach Provides Insight Into the Pathogenesis and Pathophysiology of Steroid-Induced Ocular Hypertension.

Ophthalmology science·2026
Same author

An Integrated muti-omics cell atlas of the human trabecular meshwork and ciliary body.

bioRxiv : the preprint server for biology·2026
Same author

Segmental Outflow and Trabecular Meshwork Stiffness in an Ocular Hypertensive Mouse Model.

Investigative ophthalmology & visual science·2026
Same author

A Primary Open-Angle Glaucoma Locus Near Transcription Factor <i>PRRX1</i> Identified in the Million Veteran Program.

Ophthalmology science·2026
Same author

Comparative Evaluation of VisuALL Virtual Reality Perimetry and Humphrey Visual Field Testing in Glaucoma Patients.

Clinical ophthalmology (Auckland, N.Z.)·2026
Same author

Principles of resident tissue macrophages revealed by the eye.

Advances in immunology·2026

Related Experiment Video

Updated: Jul 15, 2026

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
05:51

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness

Published on: May 3, 2018

Validation of a New Handheld Automated Fixed-Force Applanation Tonometer.

Fiona S McDonnell1, Erin Simons2, Michael Zhu3

  • 1Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA.

Translational Vision Science & Technology
|July 14, 2026
PubMed
Summary

A new handheld tonometer accurately measures intraocular pressure (IOP) in human eyes. This automated device shows high precision, particularly within the clinically relevant 10-30 mm Hg range, suggesting potential for patient care.

More Related Videos

A Tactile Automated Passive-Finger Stimulator (TAPS)
19:44

A Tactile Automated Passive-Finger Stimulator (TAPS)

Published on: June 3, 2009

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
06:11

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

Related Experiment Videos

Last Updated: Jul 15, 2026

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
05:51

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness

Published on: May 3, 2018

A Tactile Automated Passive-Finger Stimulator (TAPS)
19:44

A Tactile Automated Passive-Finger Stimulator (TAPS)

Published on: June 3, 2009

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
06:11

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Medical Devices

Background:

  • Intraocular pressure (IOP) measurement is crucial for diagnosing and managing glaucoma.
  • Existing tonometry methods have limitations in accuracy and ease of use.
  • A novel automated fixed-force applanation tonometer was developed to address these challenges.

Purpose of the Study:

  • To validate a novel handheld automated fixed-force applanation tonometer.
  • To assess the accuracy of the tonometer using ex vivo human eyes.
  • To determine the tonometer's performance across a range of intraocular pressures.

Main Methods:

  • A custom tonometer applying constant force was used with a camera to record applanation images.
  • Software automatically calculated intraocular pressure (IOP) from the applanation area.
  • Ex vivo human eyes were set to IOPs from 5 to 45 mm Hg manometrically, and measurements were compared to set values.

Main Results:

  • The novel tonometer demonstrated high accuracy when compared to manometrically set IOPs in ex vivo human eyes.
  • Mean absolute difference between measured and set IOP was 3.1 ± 3.5 mm Hg across the full range.
  • Accuracy improved significantly in the clinically relevant 10-30 mm Hg range (mean difference 0.7 ± 1.7 mm Hg).
  • A strong linear correlation was observed between prototype and set IOP (R² = 0.90, P < 0.0001), improving to R² = 0.95 (P < 0.0001) for 10-30 mm Hg.

Conclusions:

  • The novel handheld automated fixed-force applanation tonometer exhibits high accuracy in IOP measurement.
  • The device shows particular precision within the 10- to 30-mm Hg IOP range.
  • This tonometer has potential applicability for improving patient care in ophthalmology.