Related Experiment Video

Updated: Jul 17, 2026

Quantitative Autonomic Testing
11:40

Quantitative Autonomic Testing

Published on: July 19, 2011

How should we measure blood pressure in the doctor's office?

W Gerin1, R M Marion, R Friedman

  • 1Cornell University Joan and Sanford I. Weill Medical College-New York Presbyterian Hospital, New York 10021, USA. wgerin@med.cornell.edu

Blood Pressure Monitoring
|June 11, 2002
PubMed

Insights

Automated blood pressure measurement by patients alone provides more accurate readings than those taken by physicians or nurses. This method reduces bias and better reflects true ambulatory blood pressure.

Area of Science:

  • Cardiology
  • Clinical Measurement
  • Hypertension Research

Background:

  • Blood pressure measurement is a standard clinical practice.
  • Measurement bias can lead to inaccurate blood pressure readings.
  • Investigating measurement modality's influence is crucial for diagnostic accuracy.

Purpose of the Study:

  • To assess the systematic influence of measurement method on blood pressure readings.
  • To compare blood pressure measurements taken by a physician, a nurse, and an automated device.
  • To determine the most representative method for assessing ambulatory blood pressure.

Main Methods:

  • Study included 17 essential hypertensive and 10 white-coat hypertensive patients.
  • Blood pressure was measured by physician, nurse, and automated device (Arteriosonde 1216) on separate visits.
  • Repeated-measures ANOVA was used to analyze systolic and diastolic pressures.

Main Results:

  • Significant effect of measurement modality on systolic blood pressure.
  • Physician measurements were ~10 mmHg higher than nurse measurements.
  • Nurse measurements were ~7 mmHg higher than automated device measurements.

Conclusions:

  • Automated device measurements, without clinical staff present, yield more representative blood pressure readings.
  • Utilizing automated devices may improve the accuracy of routine clinical blood pressure assessment.
  • This approach can lead to a better estimation of daily ambulatory blood pressure.
Abstract

More Related Videos

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology09:33

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology

Published on: February 7, 2015

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness05:51

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

Published on: May 3, 2018

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
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...
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:
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...
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.
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.