Draw a peripheral venous blood sample.

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Arterial punctures usually require specially-trained staff. Venous punctures are less complex and can be conducted by other staff groups (e.g. nurses).1

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Combining blood sampling for venous blood gas with routine blood sampling decreases the need for arterial punctures.1

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Compared to an arterial blood draw, taking blood from a vein means less anxiety and pain, and fewer potential side effects for the patient.1

Measure the patient’s arterial oxygen saturation with a pulse oximeter.

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Analyse the venous blood sample and enter the measured arterial oxygen saturation.

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The blood gas analyser transmits the venous blood values to cobas® infinity POC.

From here the results are sent to Roche v-TAC which converts venous into arterial values before sending them back to cobas® infinity POC.

 

Roche v-TAC can be used with Roche’s cobas b 123 POC system and cobas b 221 system in combination with cobas® infinity POC.

 

cobas b 123 POC system

cobas b 221 system

cobas® infinity POC

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cobas® infinity POC forwards the values to the Laboratory Information System or Electronic Patient Record.

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The calculated arterial blood gas values can be printed on a selected network printer (optional).

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The results can now be used by healthcare professionals to improve patient management and to enable more informed decisions.

Potential benefits of v-TAC

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Improve speed of providing blood gas values.2

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Transfer blood gas testing from physicians to other staff groups (e.g. nurses).1

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Enable workflow improvements to help improve efficiency.1

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Combine venous blood gas draws with routine blood sampling.1

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Reduce painful arterial blood draws and potential side effects.1

References

 

  1. Ekström, M, et al. Calculated arterial blood gas values from a venous sample and pulse oximetry: Clinical validation. PLoS ONE. 2019, 14(4):e0215413.
  2. Kamperidis P, et al. Optimizing acute non-invasive ventilation care in the NHS; the v-TAC approach. Thorax 2018