How to Read a Venous Blood Gas (VBG) | 合法醫療器材資訊網

AVBGisobtainedbyplacingavenoussampleinthearterialbloodgasanalyser....ThevenouspHtendstobemoreacidicthanthearterialpH.

Arterial blood gas analysers are designed to measure multiple components in the arterial blood. The readout from the machine quotes normal values based on the assumption that the sample analysed is arterial (an ABG). There is currently a plague of ‘venous’ blood gases (VBG) in clinical practice. A VBG is obtained by placing a venous sample in the arterial blood gas analyser. VBGs are popular as it is far less painful for the patient to obtain a venous sample compared to an arterial sample. In addition, obtaining ABGs carries well known risks. VBGs are useful if you know how to interpret them and have a knowledge of their limitations.

An ABG has a number of uses, the VBG can be substituted for some of these uses but not for others.

1) Assessment of oxygenation status

The pO2 on a VBG bears no relationship to the paO2. The VBG is of no value in assessing oxygenati...

normal values & definitions 3 steps to abg interpretation 'other' | 合法醫療器材資訊網

Mixed venous gases measures oxygen left in the ... venous blood gases. ... For example: respiratory acidosis: The pH will be low - 6pH 7.22 and the CO2 will ... Read More

Venous blood gases and other alternatives to arterial blood ... | 合法醫療器材資訊網

由 AC Theodore 著作 · 被引用 3 次 — An arterial blood gas (ABG) is the traditional method of estimating the systemic carbon dioxide tension and pH, usually for the purpose of ... Read More

Central venous blood gas analysis | 合法醫療器材資訊網

由 C Higgins 著作 · 被引用 1 次 — With the exception of patients in severe circulatory failure, on average central venous pH is 0.03 pH units lower than arterial pH; central venous pCO2is 0.6 ... Read More

How to Read a Venous Blood Gas (VBG) | 合法醫療器材資訊網

A VBG is obtained by placing a venous sample in the arterial blood gas analyser. ... The venous pH tends to be more acidic than the arterial pH. Read More

Blood Gas Test: Purpose | 合法醫療器材資訊網

A pH of less than 7.0 is called acidic, and a pH greater than 7.0 is called basic, or alkaline. A lower blood pH may indicate that your blood is more acidic and ... Read More

Arterial Blood Gases | 合法醫療器材資訊網

2019年12月9日 — Blood gas tests (arterial blood gases, ABGs) measure oxygen (O2), carbon dioxide (CO2) ... blood pH decreases, making the blood more acidic; ... Read More

Blood gas analysis for bedside diagnosis | 合法醫療器材資訊網

由 V Singh 著作 · 2013 · 被引用 45 次 — If pH <7.35, the blood is said to be acidic. ... The venous blood gas report can be of significance in hemodynamically[3] unstable patients and should not ... Read More

Venous blood gas (VBG) interpretation | 合法醫療器材資訊網

Peripheral venous pH is only pH 0.02 to 0.04 lower than the arterial pH · Peripheral venous HCO3 concentration is approximately 1 to 2 meq/L higher than arterial ... Read More

Blood Gases | 合法醫療器材資訊網

Venous blood gas, pO2, pCO2, pH, bicarb., Tot. CO2, base excess. see above, see above ... A low pH is compatible with acidemia and a high pH with alkalemia. Read More

Venous blood gas and metabolite response to low | 合法醫療器材資訊網

由 T Yasuda 著作 · 2010 · 被引用 152 次 — Changes in venous pH (pH(v)), venous carbon dioxide partial pressure (P(v)CO(2)), and venous lactate concentration ([L(-)](v)) were greater with ... Read More

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