A junior registrar asks you to interpret a VBG from a 75-year-old man with acute confusion, fever, respiratory distress and known COPD with chronic CO2 retention.
The same VBG result is then considered in a young otherwise healthy post-operative patient.
| Parameter |
Value |
| pH |
7.21 |
| pCO2 |
70 mmHg |
| pO2 |
75 mmHg |
| ctHb |
140 g/L |
| sO2 |
95% |
| Base excess |
0 mmol/L |
| HCO3 |
27 mmol/L |
Interpret this VBG for the patient with COPD.
(Marked out of 4.0)
/ 4
Interpret the same VBG for a young healthy patient after cholecystectomy.
(Marked out of 4.0)
/ 4
Explain why the same values can have different meanings.
(Marked out of 4.0)
/ 4
Total Score: 0 / 12
Percentage: 0%
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