Related Experiment Video

Updated: Oct 13, 2026

Murine Isolated Heart Model of Myocardial Stunning Associated with Cardioplegic Arrest
08:30

Murine Isolated Heart Model of Myocardial Stunning Associated with Cardioplegic Arrest

Published on: August 6, 2015

Depression of human myocardial contractility with "respiratory" and "metabolic" acidosis

H E Cingolani, S L Faulkner, A R Mattiazzi

    Surgery
    |March 11, 1975
    PubMed

    More Related Videos

    An Optimized Protocol to Analyze Glycolysis and Mitochondrial Respiration in Lymphocytes08:40

    An Optimized Protocol to Analyze Glycolysis and Mitochondrial Respiration in Lymphocytes

    Published on: November 21, 2016

    Analysis of Human Natural Killer Cell Metabolism09:03

    Analysis of Human Natural Killer Cell Metabolism

    Published on: June 22, 2020

    Related Concept Videos

    Alterations in Respiration II01:30

    Alterations in Respiration II

    There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
    In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes include...
    Imbalances in Cardiac Output01:26

    Imbalances in Cardiac Output

    The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
    CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
    Respiratory Regulation of Acid-Base Balance01:18

    Respiratory Regulation of Acid-Base Balance

    Respiratory compensation is a vital physiological process that stabilizes blood plasma pH by regulating the partial pressure of carbon dioxide (PCO2), a key determinant of pH levels. Most carbon dioxide in the blood dissolves and converts into carbonic acid (H2CO3). It dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3⁻). There is also an inverse relationship between PCO2​​ and pH.
    When carbon dioxide levels increase in the blood, more H+ and HCO3⁻ are produced, leading to a...
    Disorders of Acid-Base Balance01:29

    Disorders of Acid-Base Balance

    The human body maintains a precise pH range of arterial blood between 7.35 and 7.45. Deviations result in either acidosis (pH < 7.35) or alkalosis (pH > 7.45). These conditions are further classified as respiratory or metabolic disorders based on their underlying cause.
    Respiratory Acidosis and Alkalosis
    Respiratory acidosis occurs due to an increase in the partial pressure of carbon dioxide PCO2 in the blood. It often arises from shallow breathing or impaired gas exchange caused by...
    Acute Respiratory Failure-II01:21

    Acute Respiratory Failure-II

    Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
    The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
    Acute Respiratory Failure-III01:30

    Acute Respiratory Failure-III

    Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without causing...