Blood Pressure Measurement
Blood Pressure Measurement - Related Videos
09:31
Noninvasive Blood Pressure Measurement Techniques
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2023
Source: Hamna J. Qureshi and Craig J. Goergen, Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana Here we will highlight the key similarities and differences of noninvasive blood pressure measurement techniques between humans and rodents and examine the engineering principles that govern blood pressure. The principles that govern current cuff technology to acquire systolic and diastolic pressures will also be discussed. Commercially available cuffs that connect...
01:17
Measurement of Blood Pressure
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2024
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.
08:18
Blood Pressure Measurement
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2015
Source: Meghan Fashjian, ACNP-BC, Beth Israel Deaconess Medical Center, Boston MA The term blood pressure (BP) describes the lateral pressures produced by blood upon the vessel walls. BP is a vital sign obtained routinely in hospital and outpatient settings, and is one of the most common medical assessments performed around the world. It can be determined directly with the intra-arterial catheter or by an indirect method, which is a non-invasive, safe, easily reproducible, and thus most...
08:54
Measuring Blood Pressure in Mice using Volume Pressure Recording, a Tail-cuff Method
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Cited by 175 •
2009
The CODA 8-Channel High Throughput Non-Invasive Blood Pressure system measures the blood pressure in up to 8 mice or rats simultaneously. This tail-cuff system uses Volume Pressure Recording (VPR) to measure the blood pressure by determining the tail blood volume.
01:21
Sites for measuring blood pressure
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2024
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
FAQs
Systolic and diastolic values describe different phases of the cardiac cycle, so neither value alone provides the full reading. Systolic pressure reflects arterial force during heart contraction, whereas diastolic pressure reflects force during relaxation. Considering both helps researchers and clinicians characterize cardiovascular function and recognize patterns consistent with hypertension or unusually low pressure.
An appropriately sized cuff and correctly positioned arm are essential because the cuff must temporarily compress the artery in a consistent way. If these conditions are not standardized, readings may become less reliable and comparisons across people or repeated measurements may be misleading. Careful positioning therefore supports valid assessment of cardiovascular status and change over time.
Both approaches detect changes associated with blood flow while cuff pressure decreases, but they use different detection routes. A pressure sensor detects pressure changes directly, whereas a stethoscope allows the observer to detect blood-flow signals. The shared cuff-and-release sequence links these signals to systolic and diastolic values, enabling the same physiological phases to be assessed.
Calm, seated conditions reduce avoidable variation related to the immediate measurement setting. Standardizing this state makes a reading more representative of the person's cardiovascular condition and improves comparison between measurements. This matters when researchers track changes over time or evaluate whether a treatment or physiological condition is associated with altered blood pressure.
Begin with the person calm and seated, select an appropriate cuff, and position the arm correctly. Inflate the cuff so it temporarily compresses the artery, then allow pressure to fall while using a pressure sensor or stethoscope to detect blood-flow changes. Record the systolic and diastolic values and preserve the same conditions when repeated measurements are compared.
It is useful for identifying hypertension or unusually low pressure, monitoring cardiovascular changes over time, and evaluating responses to treatment. Researchers can also use readings to examine cardiovascular function under different physiological conditions. The value lies not only in a single result but in how measurements support assessment, follow-up, and interpretation of changing cardiovascular status.