Blood Gas Case Collection
Learn to interpret blood gases (ABG & VBGs) systematically with our collection of clinical cases written by experienced clinicians.
PurchaseBlood Gas Case Collection
What's included?
60+ cases ๐
Improve your interpretation skills with our growing collection of arterial and venous blood gases cases authored by experienced clinicians.
Key topics ๐ฅ
Learn to recognise key blood gas abnormalities, including acid-base disturbances and electrolyte abnormalities.
Systematic ๐ค
Each blood gas is analysed using a step-by-step approach (oxygenation, pH, PaCO2, HCO3-, base excess and compensation).
Clear explanations โ๏ธ
Each case study includes a detailed explanation to help you understand the underlying physiology.
CPD certificates ๐
Downloadable certificates with performance metrics for CPD evidence.
Notebook โ๏ธ
Access to our Notebook with 350+ topic summaries.
Webinars ๐ฅ
Access all previously recorded webinars with downloadable attendance certificates for CPD.
Example
Cases
Example
Learn to recognise key blood gas abnormalities
Q
Case
1 of 60
A 55 year old smoker with known COPD presents with a 1 day history of dyspnoea, cough and wheeze.
An arterial blood gas is performed on room air.
Review the blood gas and document your interpretation below.
| Test | Result | Normal range |
|---|---|---|
| pH | 7.30 | 7.35 - 7.45 |
| PaO2 | 7.8 kPa | 11-13 kPa (82.5 - 97.5 mmHg) |
| PaCO2 | 7.9 kPa | 4.7 - 6.0 kPa (35.2 - 45 mmHg) |
| HCO3- | 32 mEq/L | 22 - 26 mEq/L |
| BE | +5.5 | -2 to +2 |
| Na+ | 137 mmol/L | 135 - 146 mmol/L |
| K+ | 4.6 mmol/L | 3.5 - 5.3 mmol/L |
| Cl- | 104 mmol/L | 98 - 106 mmol/L |
| Glucose | 5.1 mmol/L | 3.6 - 5.3 mmol/L (64.8 - 95.4 mg/dL) |
| Lactate | 2.1 mmol/L | 0.5 - 2.2 mmol/L |
Example
Each blood gas is analysed using a step-by-step approach
Q
Case
2 of 60
A 21 year old woman presents with a five day history of vomiting and lethargy. She is confused and hypotensive.
An arterial blood gas is performed on room air.
Review the blood gas and document your interpretation below.
| Test | Result | Normal range |
|---|---|---|
| pH | 7.30 | 7.35 - 7.45 |
| PaO2 | 13 kPa | 11-13 kPa (82.5 - 97.5 mmHg) |
| PaCO2 | 4.1 kPa | 4.7 - 6.0 kPa (35.2 - 45 mmHg) |
| HCO3- | 13 mEq/L | 22 - 26 mEq/L |
| BE | -5 | -2 to +2 |
| Na+ | 135 mmol/L | 135 - 146 mmol/L |
| K+ | 4.9 mmol/L | 3.5 - 5.3 mmol/L |
| Cl- | 102 mmol/L | 98 - 106 mmol/L |
| Glucose | 27 mmol/L | 3.6 - 5.3 mmol/L (64.8 - 95.4 mg/dL) |
| Lactate | 2.6 mmol/L | 0.5 - 2.2 mmol/L |
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