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Related Concept Videos

Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Hypertension V: Nursing Management01:23

Hypertension V: Nursing Management

The nursing management of hypertension involves accurately assessing symptoms, making a comprehensive nursing diagnosis, collaborating with patients to set goals, and implementing targeted interventions to mitigate the condition's impact and improve patient well-being.Comprehensive AssessmentThe initial step in nursing care for hypertension involves a thorough patient assessment. It includes evaluating symptoms such as headaches, dizziness, blurred vision, and previous hypertension episodes.
Hypertension I: Introduction01:28

Hypertension I: Introduction

Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
Blood Pressure01:30

Blood Pressure

Blood pressure (BP) is the pressure or force of blood exerted on the artery's walls as it circulates through the body. It is essential for maintaining blood flow throughout the body.
The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the diastolic...
Blood Pressure01:24

Blood Pressure

The movement of blood in a human body, commonly referred to as blood flow, is determined by the volume of blood that traverses a certain section of the bodily system per unit time. It is the rhythmic contraction of the heart's ventricles that primarily instigates this movement. As the ventricles contract, blood is forced into the prominent arteries, which then flow from areas of greater pressure to lower pressure areas. This movement continues into smaller arteries and arterioles and...

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Related Experiment Video

Updated: Jun 20, 2026

Assessing Murine Resistance Artery Function Using Pressure Myography
07:25

Assessing Murine Resistance Artery Function Using Pressure Myography

Published on: June 7, 2013

Hypertension: issues in control and resistance.

Marion R Wofford1, Deborah S Minor

  • 1Department of Medicine, Division of General Internal Medicine/Hypertension, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA. Mwofford@medicine.umsmed.edu

Current Hypertension Reports
|September 10, 2009
PubMed
Summary

More than half of patients have uncontrolled hypertension due to patient, physician, or system issues. Accurate measurement and aggressive treatment are key for managing resistant hypertension.

Related Experiment Videos

Last Updated: Jun 20, 2026

Assessing Murine Resistance Artery Function Using Pressure Myography
07:25

Assessing Murine Resistance Artery Function Using Pressure Myography

Published on: June 7, 2013

Area of Science:

  • Cardiology
  • Internal Medicine
  • Public Health

Background:

  • Hypertension affects over 50% of treated patients, indicating significant challenges in blood pressure control.
  • Barriers to effective hypertension management are multifactorial, encompassing patient-related, physician-related, and health system factors.
  • Accurate blood pressure measurement and lifestyle modifications are crucial for identifying and managing hypertension.

Purpose of the Study:

  • To outline the diagnostic criteria and management strategies for uncontrolled, pseudoresistant, and resistant hypertension.
  • To highlight the importance of evaluating secondary causes of hypertension.
  • To emphasize recent guideline recommendations for aggressive treatment and specialist referral in resistant hypertension.

Main Methods:

  • Review of current literature and guidelines on hypertension diagnosis and management.
  • Analysis of factors contributing to uncontrolled hypertension.
  • Definition and diagnostic criteria for resistant hypertension.

Main Results:

  • Uncontrolled hypertension persists in over 50% of treated individuals.
  • Identification requires careful assessment of blood pressure readings, lifestyle, and potential secondary causes.
  • Resistant hypertension is defined as blood pressure remaining above goal despite three antihypertensive agents.

Conclusions:

  • Effective hypertension control requires addressing patient, physician, and system-level barriers.
  • Aggressive treatment strategies and referral to hypertension specialists are recommended for resistant hypertension.
  • Accurate diagnosis and tailored management are essential for improving patient outcomes.