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Related Concept Videos

Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

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Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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Pulse rhythm01:30

Pulse rhythm

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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Guidelines For Measuring Vital Signs01:19

Guidelines For Measuring Vital Signs

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Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
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Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

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Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
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Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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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...
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Pulse Oximetry01:24

Pulse Oximetry

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Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
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Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing
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Self-Powered Multiparameter Health Sensor.

Andreas Tobola, Heike Leutheuser, Markus Pollak

    IEEE Journal of Biomedical and Health Informatics
    |June 3, 2017
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    Summary
    This summary is machine-generated.

    Wearable biomedical sensor systems face battery limitations. This study introduces an Ultra-Low-Power Sensor Evaluation Kit (ULPSEK) powered by body heat, addressing practical concerns for health monitoring.

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    An Application for Pairing with Wearable Devices to Monitor Personal Health Status
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    Area of Science:

    • Biomedical Engineering
    • Wearable Technology
    • Energy Harvesting

    Background:

    • Wearable biomedical sensor systems are crucial for modern healthcare.
    • Battery life and size remain significant challenges for practical, user-accepted wearable devices.
    • Existing solutions often compromise performance or efficiency.

    Purpose of the Study:

    • To evaluate the feasibility of body heat harvesting for powering wearable biomedical sensors.
    • To address the critical concern of battery runtime and size in wearable health monitoring.
    • To present design considerations for a self-powered sensor platform.

    Main Methods:

    • Development and testing of the Ultra-Low-Power Sensor Evaluation Kit (ULPSEK).
    • Integration of a multiparameter sensor array (ECG, respiration, motion, temperature, PPG).
    • Utilizing an efficient body heat harvester as the primary power source, bypassing traditional batteries.

    Main Results:

    • The ULPSEK platform successfully operated using harvested body heat.
    • The body heat harvester generated an average of 171 μW, sufficient for sensor operation below 25°C ambient temperature.
    • Identified design challenges in power supply and distribution for the self-powered sensor.

    Conclusions:

    • Body heat harvesting is a viable alternative to batteries for specific wearable biomedical sensor applications.
    • A hybrid power solution combining a harvester with a battery is recommended for enhanced security and reliability.
    • The ULPSEK provides a platform for evaluating self-powered biomedical sensors, paving the way for more practical health monitoring devices.