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Completed

NCT Number: NCT06522009

Effect of Time Delay and Syringe Surface Area on Blood Gas Samples Analysis

To detect the effect of time delay and syringe surface area on the oxygen tension (PaO2), oxyhaemoglobin saturation (SaO2), acidity (pH), and carbon dioxide tension (PaCO2) in both arterial and venous blood gas outcomes.

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Key information

Conditions

Respiratory Failure Respiration Disorders Respiratory Insufficiency Respiratory Tract Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Theodor Bilharz Research Institute

Cairo, 3357, Egypt

About this study

Arterial blood gas (ABG) analysis and monitoring is a crucial process for the diagnosis and management of the oxygenation status and acid-base balance of high-risk patients during surgery, as well as for the critical care of critically ill patients in the Intensive Care Unit .

Acid-base imbalance anomalies can have major repercussions in a number of medical scenarios, and in a few rare instances, they may even be a risk factor for death.

ABG test explores the arterial blood's pH, oxyhaemoglobin saturation (SaO2), bicarbonate concentration (HCO3), oxygen tension (PaO2), and carbon dioxide tension (PaCO2).

Traditionally, the concept "blood gas testing" has been used to describe measuring the blood's pH, oxygen saturation of haemoglobin (SaO2), and partial pressures of the physiologically active gases (pO2, pCO2). But now available commercial equipment can measure electrolytes (sodium, potassium, chloride, ionized calcium, and magnesium), glucose, lactate, and creatinine, usually all at the same time, in addition to haemoglobin quantification and co-oximetry

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Critically ill-patients, and intraoperative patients who aged above 18 years.

Exclusion criteria

  • Patients with haematological diseases e.g. sickle cell anaemia
  • burn patients with risk of carbon monoxide poisoning
  • ARDS
  • pulmonary oedema
  • samples that were clotted

Treatment and study plan

Primary outcomes

  1. To detect the effect of time delay and syringe surface area on the oxygen tension (PaO2) arterial and venous blood gas outcomes.

    Time frame: 1 hour

    PaO2 by mmhg arterial and venous samples

    To detect the effect of time delay and syringe surface area on SO2 in arterial and venous samples

    To detect the effect of time delay and syringe surface area on other parameters of blood gases e.g. PH,CO2

Secondary outcomes

  1. effect of delay on analysis oxyhaemoglobin saturation (SaO2) acidity (pH) carbon dioxide tension (PaCO2)

    Time frame: 60 minutes

    spao2 by mmhg and paco2 by mmhg

Sponsors and collaborators

Lead sponsor

Helwan University

Other

Collaborators

  • Theodor Bilharz Research Institute

Registry information

Official study title

Effect of Time Delay and Syringe Surface Area on Results of Blood Gas Analysis

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Jul 26, 2024
Registry last updated
Aug 9, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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