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Related Concept Videos

Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

2.0K
Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
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Alterations in Respiration II01:30

Alterations in Respiration II

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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...
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Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

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Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
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Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

1.4K
Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
1.4K
Acute Respiratory Failure-III01:30

Acute Respiratory Failure-III

1.3K
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...
1.3K
Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

830
Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
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Related Experiment Video

Updated: May 6, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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Respiratory dyskinesias: extrapyramidal dysfunction and dyspnea.

W J Weiner, C G Goetz, P A Nausieda

    Annals of Internal Medicine
    |March 1, 1978
    PubMed
    Summary

    Neurologic conditions can cause acute respiratory distress. Involuntary respiratory dyskinesias, linked to movement disorders, may mimic cardiac or pulmonary issues, necessitating broader diagnostic considerations.

    Area of Science:

    • Neurology
    • Respiratory Medicine

    Background:

    • Acute dyspnea and chest pain are commonly attributed to cardiac or pulmonary disorders.
    • Primary neurologic diseases can present with atypical symptoms, complicating initial diagnoses.

    Observation:

    • Four patients presented with acute dyspnea and chest pain attributed to primary neurologic conditions.
    • These symptoms stemmed from severe, involuntary respiratory dyskinesias, a component of generalized choreiform movement disorders.
    • Two patients had neuroleptic-induced tardive dyskinesias, and one had levodopa-induced dyskinesias.

    Findings:

    • Respiratory dyskinesias manifest as irregular respiratory rates, shortness of breath, and chest discomfort.
    • The patients' symptoms were initially misdiagnosed due to their age and presentation, resembling cardiac and pulmonary complaints.

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  • These respiratory dyskinesias are associated with extrapyramidal dysfunction.

    • Implications:

    • Respiratory dyskinesias should be considered in the differential diagnosis of unexplained respiratory distress.
    • Recognition of this condition is crucial for accurate diagnosis and appropriate management in patients with movement disorders.
    • This highlights the importance of a comprehensive neurological assessment in patients with respiratory symptoms.