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Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

102
Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
102
Assessment of apical pulse01:17

Assessment of apical pulse

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Assessing the Apical Pulse
Assessing the apical pulse is a critical nursing procedure, particularly indicated for:
838
Assessment of the Cardiovascular System IV: Auscultation01:25

Assessment of the Cardiovascular System IV: Auscultation

220
Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
220
Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

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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.
705
Assessment of blood pressure in brachial artery(two-step method)01:23

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

659
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...
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Assessment of blood pressure in brachial artery(one-step method)01:15

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

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

Updated: Jun 9, 2025

Measuring Cardiac Autonomic Nervous System ANS Activity in Children
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听力心电图 (PCG) 根据平均教师方法检测声

Yi Luo1, Zuoming Fu2, Yantian Ding3

  • 1Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21287, USA.

Sensors (Basel, Switzerland)
|October 26, 2024
PubMed
概括

早期发现心血管疾病 (CVD) 是至关重要的. 我们使用心声分析 (心声图) 的新方法实现了识别心脏的最先进性能,为早期心血管疾病评估提供了可访问的工具.

关键词:
心血管疾病 (CVD) 是一种心血管疾病.低收入和中等收入国家 (LMICs)意思是教师教师教师的意思.窃听声检测 窃听声检测 窃听声检测非侵入性评估是一种非侵入性评估.听力心电图 (PCG) 是一种心电图.半监督学习 半监督学习

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科学领域:

  • 心脏病学 心脏病学
  • 生物医学工程 生物医学工程
  • 医疗保健中的人工智能

背景情况:

  • 心血管疾病 (CVD) 是全球主要的死亡原因.
  • 早期检测心血管疾病,特别是在儿科患者群体中,对于有效管理至关重要.
  • 声心图 (PCG) 提供了一种非侵入性方法来评估心脏功能并检测像声这样的异常.

研究的目的:

  • 开发用于早期心血管疾病评估的准确和可访问的工具.
  • 为了提高心脏声的检测,使用心电图 (PCG) 信号.
  • 解决贫困地区早期心脏病诊断的公共卫生挑战.

主要方法:

  • 利用平均教师方法来检测PCG信号中的声.
  • 在PhysioNet 2022和PhysioNet 2016 PCG数据集上训练模型.
  • 通过默默得分和曲线下的面积 (AUC) 度量来评估表现.

主要成果:

  • 在声检测方面实现了最先进的 (SOTA) 性能.
  • 获得了0.82的默默得分和0.90的AUC得分.
  • 证明了提议的早期心血管疾病评估方法的有效性.

结论:

  • 开发的平均教师方法为早期CVD检测提供了高精度,非侵入性的工具.
  • 这种方法对低收入和中等收入国家 (LMICs) 尤其有利.
  • 可访问的早期心血管疾病评估可以显著降低死亡率.