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Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

603
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
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Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

Assessment of Ventilation II: Respiratory Depth and Rhythm

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Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
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Assessment of Ventilation I: Respiratory Rate01:20

Assessment of Ventilation I: Respiratory Rate

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Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
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Pulse Oximetry01:24

Pulse Oximetry

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Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
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Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

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Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
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Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies01:27

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

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Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
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Conducting Respiratory Oscillometry in an Outpatient Setting
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Impulse oscillometry: pulmonary function assessment in preschool children.

Décio Medeiros1,2, Pedro Castro2,3, Ana Caroline Dela Bianca1,2

  • 1Department of Maternal-Child Health, Universidade Federal de Pernambuco (UFPE) , Recife, Brazil.

Expert Review of Respiratory Medicine
|August 28, 2020
PubMed
Summary

Impulse Oscillometry System (IOS) can assess preschooler lung function. Children with respiratory symptoms showed higher resistance (R5Hz and R5-R20Hz) compared to healthy peers before bronchodilator use.

Keywords:
Pulmonary function testairway resistancebronchodilatorschildoscillometrypreschool

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Area of Science:

  • Pediatric Pulmonology
  • Respiratory Physiology

Background:

  • Spirometry is challenging for preschoolers due to cooperation requirements.
  • Impulse Oscillometry System (IOS) offers a low-cooperation alternative for pediatric lung function testing.
  • Early detection of lung function changes is crucial for managing conditions like asthma.

Purpose of the Study:

  • To compare Impulse Oscillometry System (IOS) results in preschool children with and without respiratory symptoms.
  • To evaluate the utility of IOS as a spirometry alternative in young children.

Main Methods:

  • A cross-sectional study involving 76 children aged 3-6 years.
  • Children were grouped based on respiratory symptoms using a validated questionnaire.
  • IOS parameters (R5Hz, R20Hz, X5Hz, R5-R20Hz) were measured before and after bronchodilation.

Main Results:

  • 55 out of 76 preschoolers reported respiratory complaints.
  • IOS measurements demonstrated high reliability (R5Hz variability ≤17% in 92.1% of children).
  • Children with respiratory symptoms exhibited higher R5Hz and R5-R20Hz values pre-bronchodilation compared to asymptomatic children.

Conclusions:

  • IOS effectively differentiates lung resistance in preschool children with and without respiratory symptoms.
  • Higher resistance values (R5Hz, R5-R20Hz) indicate potential airway obstruction in symptomatic children.
  • IOS is a viable tool for pediatric pulmonary function assessment, especially for those unable to perform spirometry.