abg arterial blood gas
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- 1. ABGArterial blood gas
2. Arterial Blood Gas 1.oxygenation 2.ventilation 3.acid-base status 3. 98%-2%- PaO2- SaO2-PaO2 4. SaO2 80~100mmHg :: 10 mmol/L - - 25. HCO3-1 mmol/L PaCO21.2 mmHgHCO3-1 mmol/L PaCO20.7 mmHg PaCO210 mmHgHCO3-1 mmol/L PaCO210 mmHgHCO3-4 mmol/L PaCO210 mmHgHCO3-2 mmol/L PaCO210 mmHgHCO3-5 mmol/L 26. PaCO2 PaCO2 CO2 27. Anion gapmEq/L Major plasma cation (Na+) majorplasma anions (Cl-, [HCO3-]) Anion gap= [Na+]-([Cl-]+[HCO3-]) Anion gap124 mEq/L AG [HCO3-]lossCl- AG 28. Anion Gap AGUndetermined Anion, UAHPO42-SO42-. (Undertermined Cation, UC)K+Mg2+Ca2+ AGUAUC[Na+]-([Cl-]+[HCO3-]) 29. Anion Gap 30. PaCO2 compensation pH HCO3- BENO NN PaCO2 HCO3-Acidosi partly Acute HCO3- s=0.1PaCO2Chronic HCO3-=0.35PaCO2 respirato yes N ryNO NN PaCO2 HCO3-Alkalos partly Acute HCO3- is =0.2PaCO2Chronic HCO3-=0.5PaCO2yes N 31. HCO3- compens pH PaCO BEation 2NO N HCO3- Acidosi partly PaCO2 s PaCO2=1.2HCO3- yes N metabolicNO N HCO3- Alkalos partly PaCO2 isPaCO2=0.8HCO3-yes N 32. Respiratory Acidosis PaCO245mmHg CO2retention H+[HCO3-] : 1.: 2.: 3.: 33. Respiratory Alkalosis PaCO2 35mmHg CO2 H+[HCO3-] : 34. Metabolic Acidosis [HCO3-][H+] [HCO3-]PaCO2 Anion gap16Lactate2mmol/LHypoxia Kussmaul [H+]: 1. 2. 3. 4. 5. [HCO3-] 35. Metabolic Alkalosis [HCO3-] 26mEq/L [HCO3-][H+] [H+] 1. 2. 3. [HCO3-]1. 2. NB3. penicillin 36. pH (acidemia)(alkalemia) PaCO2 and [HCO3-] pH CO2 (pH PaCO2) pH CO2 PaCO2 [HCO3-] PaCO2 [HCO3-] 37. Metabolic Alkalosis PCO2, [HCO3-] PCO2, [HCO3-] Check blood AGhigh AG AG/ [HCO3-]=1-2 pure metabolic acidosis AG/ [HCO3-]2 high AG metabolicacidosis+metabolic alkalosis 38. 1 208/room airABG:pH:7.10PaO2:50 mmHgPaCO2:82mmHg[HCO3-] :27 meq/LBE:2 ?? 39. ANSWER: 40. Step I-: pH-7.1acidemiaStep II-: PaCO282mmHg ( ) HCO3 27 meq/L() Step III- HCO3 41. 24030/: pH:7.3PO2: 50 mmHg pCO2: 20 mmHg HCO3: 10 meq/L BE:-14?? 42. ANSWER 43. Step I-: pH-7.3acidemiaStep II-: PaCO220mmHg ( respiratory alkalosis) HCO3 10 meq/L( metabolic acidosis) Step III- PaCO2 44. 3 72 pH=7.21 PaCO2=64.8 mmHg PaO2=30.7 mmHg [HCO3-] =25.1 mmol/L BE=2.8 45. pH7.21 PaCO2HCO3- PaCO215*[25.1]+845.564.8 HCO3-26-34 46. Answer 47. 4pH7.47PaCO220 mmHg [HCO3-] 14mEq/L 48. ANSWER 49. 5pH 7.351pCO2 21.4 mmHgpO2104.4 mmHg[HCO3-]11.9 meq/LtCO2 12.6 mmol/LBE -11.7O2SAT97.5 U/L 50. ANSWER 51. Thank you