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Related Concept Videos

Disorders of Hemostasis01:24

Disorders of Hemostasis

Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Blood Pressure Imbalances and Circulatory Shock01:24

Blood Pressure Imbalances and Circulatory Shock

Disorders affecting blood volume, vascular tone, or vascular function can disrupt vascular homeostasis, including conditions like hypertension, hemorrhage, and shock.
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
Disorders of Erythrocytes01:27

Disorders of Erythrocytes

Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Epistaxis01:30

Epistaxis

Epistaxis, or nosebleeds, occurs when small, swollen blood vessels in the nasal mucous membrane rupture. Typically, the anterior septum is the primary site of occurrence.
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...

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Related Experiment Video

Updated: Jun 20, 2026

Tail Vein Transection Bleeding Model in Fully Anesthetized Hemophilia A Mice
08:13

Tail Vein Transection Bleeding Model in Fully Anesthetized Hemophilia A Mice

Published on: September 30, 2021

Bleeding disorders: when is normal bleeding not normal?

Kimo C Stine, David L Becton

    The Journal of the Arkansas Medical Society
    |September 1, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Abnormal bleeding requires evaluation. This review covers common bleeding disorders, their symptoms, and management, emphasizing the role of hemophilia treatment centers.

    More Related Videos

    A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
    09:38

    A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

    Published on: February 14, 2017

    Related Experiment Videos

    Last Updated: Jun 20, 2026

    Tail Vein Transection Bleeding Model in Fully Anesthetized Hemophilia A Mice
    08:13

    Tail Vein Transection Bleeding Model in Fully Anesthetized Hemophilia A Mice

    Published on: September 30, 2021

    A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time
    09:38

    A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

    Published on: February 14, 2017

    Area of Science:

    • Hematology
    • Internal Medicine

    Background:

    • Bleeding is a common occurrence, but distinguishing normal from abnormal bleeding is crucial for timely diagnosis and intervention.
    • Understanding the nuances of bleeding disorders is essential for effective patient management.

    Purpose of the Study:

    • To identify and describe the three most common bleeding disorders.
    • To outline common presentations and management strategies for these disorders.
    • To elucidate the role of specialized hemophilia treatment centers in patient care.

    Main Methods:

    • Literature review focusing on common bleeding disorders.
    • Synthesis of information on clinical presentation and diagnostic approaches.
    • Discussion of current management options and treatment center functions.

    Main Results:

    • Highlights the three most prevalent bleeding disorders.
    • Details typical signs and symptoms associated with each disorder.
    • Provides an overview of available treatment modalities.

    Conclusions:

    • Emphasizes the importance of recognizing abnormal bleeding patterns.
    • Underscores the value of specialized centers, such as hemophilia treatment centers, in managing complex bleeding conditions.
    • Facilitates physician understanding and management of patients with bleeding disorders.