Abg

Arterial Blood Gas Analysis Dr. Tongjun Ma Emergency Department of Tianjin medical university General Hospital

[object Object],[object Object],[object Object],[object Object]

Contents of ABG ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Indications ,[object Object],[object Object],[object Object],[object Object]

Blood sample collection ,[object Object],[object Object],[object Object]

Complications of Puncture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Puncture sites ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Radial artery ,[object Object],[object Object],[object Object]

Brachial artery ,[object Object],[object Object],[object Object]

Puncture technique ,[object Object],[object Object],[object Object],[object Object],[object Object]

Preparation 1 ,[object Object],[object Object],[object Object],[object Object]

Preparation 2 ,[object Object],[object Object],[object Object],[object Object]

Step 2 ,[object Object],[object Object],[object Object],[object Object]

Puncture ,[object Object],[object Object],[object Object],[object Object]

Cap and transport ,[object Object],[object Object],[object Object],[object Object]

Key points ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is pH Acidic Alkaline Neutral 0 14 7 ,[object Object],[object Object],[object Object]

Arterial Blood pH 7.4 Academia Acidosis? Alkalemia Alkalosis? 7.35~7.45 6.8 7.8 DEATH DEATH

Importance of pH ,[object Object],[object Object],[object Object],Every enzymatic reaction in the body is affected by pH!

Adverse Clinical Effects of Acidemia

Compensation ,[object Object],[object Object],[object Object]

Lungs Compensation ,[object Object],[object Object],[object Object],[object Object]

Body is open ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Kidneys Compensation ,[object Object],[object Object],[object Object]

pH pH  ? uncompensated alkalosis pH ↓ ? uncompensated acidosis Normal pH ?

PCO 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HCO 3 - ,[object Object],[object Object],[object Object],[object Object]

Hendersen-Hasselbalch equation

If = 1 pH = 6.1 If = 10 pH = 7.1 If = 20 pH = 7.4 If = 30 pH = 7.6

Base Excess ,[object Object],[object Object],[object Object],[object Object]

PaO 2 ,[object Object],[object Object],[object Object],[object Object]

SaO 2 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Comparison with PO2 values 20mmHg 35% 50mmHg 84% 60mmHg 89% 80mmHg 95% 100mmHg 98%

Review of Normal ABG ,[object Object],[object Object],[object Object],[object Object],[object Object]

Abg

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Abg