27/08/2025
đŠē (Arterial Blood Gas)
đāĻāĻžāĻāĻŽāϞāĻžāĻāύ⧠āϰā§āĻā§ āĻĻāĻŋāύ
đ āϏāĻāĻā§āĻāĻž (Definition):
ABG āĻšāϞ⧠āĻāĻŽāύ āĻāĻāĻāĻŋ āĻĒāϰā§āĻā§āώāĻž āϝā§āĻāĻžāύ⧠āϧāĻŽāύ⧠āϰāĻā§āϤ āύāĻŋā§ā§ āϰāĻā§āϤā§āϰ pH, āĻ
āĻā§āϏāĻŋāĻā§āύ (PaOâ), āĻāĻžāϰā§āĻŦāύ āĻĄāĻžāĻ āĻ
āĻā§āϏāĻžāĻāĻĄ (PaCOâ), āĻŦāĻžāĻāĻāĻžāϰā§āĻŦāύā§āĻ (HCOââģ) āĻ āĻ
āĻā§āϏāĻŋāĻā§āύ āϏā§āϝāĻžāĻā§āϰā§āĻļāύ (SaOâ) āĻŽāĻžāĻĒāĻž āĻšā§āĨ¤
đ¯ āĻāĻĻā§āĻĻā§āĻļā§āϝ (Purpose):
đāĻ
ā§āϝāĻžāϏāĻŋāĻĄ-āĻŦā§āϏ āĻŦā§āϝāĻžāϞāĻžāύā§āϏ āύāĻŋāϰā§āĻŖā§
đāĻļā§āĻŦāĻžāϏāϝāύā§āϤā§āϰā§āϰ āĻāĻžāϰā§āϝāĻāĻžāϰāĻŋāϤāĻž āĻŽā§āϞā§āϝāĻžā§āύ
đāĻŽā§āĻāĻžāĻŦāϞāĻŋāĻ āĻ āϰā§āϏāĻĒāĻŋāϰā§āĻāϰāĻŋ āϏāĻŽāϏā§āϝāĻž āĻļāύāĻžāĻā§āϤ
đ āϏā§āĻŦāĻžāĻāĻžāĻŦāĻŋāĻ āĻŽāĻžāύ (Normal Values):
pH: 7.35 â 7.45
PaOâ: 80 â 100 mmHg
PaCOâ: 35 â 45 mmHg
HCOââģ: 22 â 26 mEq/L
SaOâ: 95 â 100%
â ī¸ āĻĒā§āϰāϧāĻžāύ āĻĄāĻŋāϏāĻ
āϰā§āĻĄāĻžāϰ (Major Disorders):
1ī¸âŖ Respiratory Acidosis: pH â, PaCOâ â (COPD, āĻļā§āĻŦāĻžāϏāϰā§āϧ)
2ī¸âŖ Respiratory Alkalosis: pH â, PaCOâ â (Hyperventilation)
3ī¸âŖ Metabolic Acidosis: pH â, HCOââģ â (DKA, Renal failure)
4ī¸âŖ Metabolic Alkalosis: pH â, HCOââģ â (Vomiting, Antacid use)
đ§Ē āϏā§āϝāĻžāĻŽā§āĻĒāϞ āϏāĻāĻā§āϰāĻš (Sample Collection):
đĸ Radial āϧāĻŽāύ⧠āĻĨā§āĻā§ āϰāĻā§āϤ
đĸ Heparinized syringe āĻŦā§āϝāĻŦāĻšāĻžāϰ
đĸāĻĻā§āϰā§āϤ āϞā§āϝāĻžāĻŦā§ āĻĒāĻžāĻ āĻžāϤ⧠āĻšāĻŦā§ (āĻāĻāϏ āĻĒā§āϝāĻžāĻāϏāĻš āĻšāϞ⧠āĻāĻžāϞā§)