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Related Concept Videos

Disorders of Acid-Base Balance01:29

Disorders of Acid-Base Balance

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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...
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Respiratory Regulation of Acid-Base Balance01:18

Respiratory Regulation of Acid-Base Balance

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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...
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Common Respiratory Disorders01:31

Common Respiratory Disorders

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Respiratory disorders, a prevalent health concern globally, are generally divided into two primary categories: upper and lower respiratory tract disorders. The categorization is based on the area of the respiratory system they affect.
Upper respiratory disorders impact the airways above the vocal cords, encompassing areas like the nose, sinuses, and throat. Various conditions fall under this category, including the common cold and allergic rhinitis. These disorders can stem from several causes,...
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Drugs Used in Lower Respiratory Disorders: Overview01:17

Drugs Used in Lower Respiratory Disorders: Overview

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Lower respiratory tract disorders present challenges that often require skilled and nuanced approaches for effective management. Common ailments, such as asthma and chronic obstructive pulmonary disease (COPD), have prompted the development of intricate treatment strategies involving bronchodilators and anti-inflammatory drugs, each tailored to ease breathing and revitalize the lungs.
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
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Drugs Used in Upper Respiratory Disorders: Overview01:16

Drugs Used in Upper Respiratory Disorders: Overview

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Upper respiratory tract disorders, including viral infections and allergic rhinitis, cause significant discomfort and disrupt daily life. Managing these conditions involves a variety of drugs, such as antihistamines, intranasal steroids, decongestants, antitussives, expectorants, and mucolytics. Specific examples of drugs in each category are provided.
Antihistamines (e.g., Benadryl) block histamines from binding. Histamines are chemicals released during an allergic reaction in the body. As a...
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Lewis Acids and Bases02:33

Lewis Acids and Bases

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In 1923, G. N. Lewis proposed a generalized definition of acid-base behavior in which acids and bases are identified by their ability to accept or to donate a pair of electrons and form a coordinate covalent bond.
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
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Updated: Feb 10, 2026

Author Spotlight: Exploring Venous Waveforms for Non&#45;Invasive Respiratory Monitoring in Pigs
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Respiratory Acid-Base Disorders.

Alexander Arena1, Emily Miller1

  • 1Department of Emergency Medicine, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, Mail Code 7736, San Antonio, TX 78229-3900, USA.

Endocrinology and Metabolism Clinics of North America
|February 8, 2026
PubMed
Summary
This summary is machine-generated.

Respiratory acid-base disorders require identifying the root cause, not just managing symptoms like airway issues. Prompt diagnosis of the underlying etiology is crucial for effective treatment and preventing further complications.

Keywords:
Blood gasHypercapniaHyperventilationNIPPVRespiratory acidosisRespiratory alkalosis

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Area of Science:

  • Emergency Medicine
  • Pulmonology
  • Critical Care

Background:

  • Respiratory acid-base disorders are less frequently considered than metabolic disorders in emergency settings.
  • While often linked to lung pathology, central nervous system and other organ systems can also influence these conditions.
  • Superficial management like mechanical ventilation is insufficient without addressing the primary cause.

Purpose of the Study:

  • To emphasize the importance of diagnosing the etiology of respiratory acid-base disorders.
  • To highlight that effective management hinges on treating the underlying cause.
  • To guide emergency clinicians in comprehensively evaluating these disturbances.

Main Methods:

  • Review of existing literature on respiratory acid-base disorders.
  • Analysis of clinical presentations and diagnostic challenges.
  • Discussion of management strategies focusing on etiology.

Main Results:

  • Respiratory acid-base disturbances necessitate a thorough etiological investigation.
  • Identifying the root cause is paramount for successful clinical outcomes.
  • Effective treatment strategies are directly linked to addressing the underlying pathology.

Conclusions:

  • Emergency clinicians must prioritize discovering the etiology of respiratory acid-base disorders.
  • Treating the underlying cause is essential to prevent the worsening of acid-base status.
  • A comprehensive approach beyond airway management is critical for patient care.