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Related Concept Videos

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In chemistry, titrimetric methods are broadly classified into three types: volumetric, gravimetric, and coulometric. Volumetric titrations involve measuring the volume of a titrant of known concentration that is required to react completely with an analyte. In gravimetric titrations, the standard solution reacts with the analyte to form an insoluble precipitate, which is filtered, dried, and weighed. In coulometric titrations, current is applied to an electrochemical reaction until the reaction...
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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.
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Controlled-Current Coulometry: Coulometric Titration01:18

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Coulometric titrations are a form of titrimetric analysis where the reagent is generated electrically, and its amount is evaluated based on current and generating time. The electron serves as the standard reagent. The procedure is similar to conventional titrations, such as endpoint detection.
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Unlike direct titration, back-titration, and displacement titration, indirect titration is an EDTA titration method for quantifying anions. In the indirect titration method, anions are precipitated as their insoluble salts with excess metal ions. The filtrate containing the excess metal ions is directly titrated with standard EDTA until the endpoint is achieved. Another approach involves extracting the metal ion and back-titrating with standard EDTA to obtain the endpoint. In this way, the...
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The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
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Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
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Oxygen Conservation Methods With Automated Titration.

Stéphane Bourassa1,2,3, Pierre-Alexandre Bouchard1, Marc Dauphin4,5

  • 1Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec City, Québec, Canada.

Respiratory Care
|February 20, 2020
PubMed
Summary
This summary is machine-generated.

Optimizing oxygen saturation targets significantly reduces oxygen use. Automated titration is feasible for maintaining stable oxygen levels in patients with COPD and healthy individuals, improving oxygen delivery efficiency.

Keywords:
FreeO2automated oxygen titrationbiologicalchemicalgas exchangegas maskhypoxemianuclear and explosivesprotective respiratory devicesradiological

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Area of Science:

  • Pulmonary Medicine
  • Critical Care Medicine
  • Biomedical Engineering

Background:

  • Oxygen titration is crucial for preventing hyperoxemia and hypoxemia.
  • Automated oxygen titration and specific oxygen saturation ([Formula: see text]) targets can impact oxygen utilization and logistics, especially in transport settings.
  • Research is needed to assess oxygen flow requirements for various [Formula: see text] targets and evaluate automated titration's efficacy.

Purpose of the Study:

  • To determine the oxygen flow needed for different [Formula: see text] targets in spontaneously breathing individuals.
  • To evaluate individualized automated oxygen titration for maintaining stable oxygenation in COPD patients and healthy individuals with induced hypoxemia.

Main Methods:

  • Oxygen flow was assessed in hospitalized subjects targeting [Formula: see text] levels from 90% to 98% using an automated titration device.
  • The automated system adjusted oxygen flow every second based on the [Formula: see text] target.
  • The method was applied to correct induced hypoxemia in COPD and healthy subjects using a gas mask, recording oxygen flow, [Formula: see text], and heart rate.

Main Results:

  • A >6-fold reduction in oxygen flow was observed when decreasing the [Formula: see text] target from 98% to 90% in hospitalized subjects.
  • In healthy subjects with induced hypoxemia, oxygen flow varied between 0.2-2.5 L/min.
  • In COPD subjects, oxygen flow ranged from 0 L/min to 2.9 L/min, with 0 L/min needed in 9 out of 18 conditions.

Conclusions:

  • Optimized [Formula: see text] targets can lead to significant reductions in delivered oxygen.
  • Automated oxygen titration is a feasible method for oxygen delivery via gas mask to correct hypoxemia.
  • Individualized automated titration can potentially reduce overall oxygen utilization.