65 year old male known COPD, presents to ED as priority 1 with SOB and sats 60% RA. History not known as patient not able to talk.
BP 170/60 HR 140 SATS 96% on neb Temp 36
Initial VBG,
pH 7.04 (7.32 – 7.43) Sodium: 140 mmol/L (135 – 145)
pCO2: 112 mmHg (37 – 50) Potassium: 4.6 mmol/L (3.5 – 5.2)
pO2: 30 mmHg (36 – 44) Chloride: 104mmol/L (95 – 110)
HCO3: 29 mmol/L (22 – 28) Creatinine: 69umol/L (60 – 110)
Base XS: -8 mmol/L (-3 – 3) Glucose: 9.3 mmol/L (3.0 – 5.4)
Saturation: 35 % Lactate: 2.8 mmol/L (< 1.5)
ABG done soon after arrival on an FiO2 0.4
pH 7.04 (7.32 – 7.43) Sodium: 138 mmol/L (135 – 145)
pCO2: 83mmHg (37 – 50) Potassium: 4.7 mmol/L (3.5 – 5.2)
pO2: 153mmHg (36 – 44) Chloride: 106 mmol/L (95 – 110)
HCO3: 24mmol/L (22 – 28) Creatinine: 69 umol/L (60 – 110)
Base XS: -8 mmol/L (-3 – 3) Glucose: 11.8 mmol/L (3.0 – 5.4)
Saturation: 98 % Lactate: 1.7 mmol/L (< 1.5) 1.
- Describe and interpret the ABG2.
- In general, how do ABG measurements correlate with VBG results?