Arterial blood gas analysis 動脈血液氣體分析 | 衛教單張 - 中國醫藥大學附設醫院

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Arterial blood gas analysis 動脈血液氣體分析

Arterial blood gas analysis 動脈血液氣體分析

Arterial blood gas analysis 動脈血液氣體分析

2024/12/18

Purpose of Examination

To monitor the content of oxygen and carbon dioxide in arterial blood to evaluate the gas exchange in the lungs.
To evaluate the acid-base balance in vivo.
To monitor the severity of disease progression as a reference for treatment.
To help medical staff evaluate the effectiveness of respiratory therapy for patients.

Indications

Respiratory disorders, dysfunction of cardiovascular system, renal dysfunction, shock, etc.

Item	Normal values	Clinical significance
pH	7.35 ~ 7.45	Acid-base equilibrium in the blood
PaO₂	80 ~ 100 mmHg	Oxygen levels in arterial blood
PaCO₂	35 ~ 45 mmHg	Patients' ventilation capacity
HCO₃	24 ± 4 mEq/L	Bicarbonate levels in the blood
BE	0 ± 2 mEq/L	Acid-base equilibrium
SaO₂	97 ~ 98 %	Oxygen carrying capacity of heme

Comorbidity

Causes of comorbidity: frequent extraction, improper puncture, or misoperation.
Common comorbidities: hematoma, tissue damage, thrombosis, poor peripheral blood circulation, numbness, infection, etc.
After a puncture, the patient should be assisted or his family members asked to apply pressure to the puncture site for at least 5 minutes to stop the bleeding and check for any comorbidity.

Reference

Singh, V., Khatana, S., & Gupta, P. (2013). Blood gas analysis for bedside diagnosis. National journal of maxillofacial surgery, 4(2), 136–141. https://doi.org/10.4103/0975-5950.127641

製作單位：內科部胸腔科　編碼：HE-T2001-E
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