A 2-year-old boy is brought to the emergency department after his grandparents find him unresponsive at home. He has no significant past history. He is very drowsy with GCS 7 (E2 V1 M4). His initial venous blood gas is shown below.
| Observation |
Result |
| Heart rate |
140/min |
| Blood pressure |
80/50 mmHg |
| Respiratory rate |
18/min |
| Oxygen saturation |
100% on 2 L/min oxygen by nasal cannulae |
| Temperature |
36.5 C |
| Venous blood gas |
Result |
Reference range |
| pH |
7.10 |
7.35-7.45 |
| pO2 |
50 mmHg |
|
| pCO2 |
37 mmHg |
40-52 |
| HCO3- |
11 mmol/L |
24-32 |
| Lactate |
8.8 mmol/L |
0.5-2.0 |
| Sodium |
143 mmol/L |
135-145 |
| Potassium |
3.8 mmol/L |
3.5-4.8 |
| Chloride |
110 mmol/L |
95-110 |
| Glucose |
1.8 mmol/L |
3.0-6.0 |
List five (5) significant abnormalities on the venous blood gas.
(Marked out of 5.0)
/ 5
Describe the acid-base disturbance, showing your calculations.
(Marked out of 5.0)
/ 5
List five (5) relevant differential diagnoses.
(Marked out of 5.0)
/ 5
Total Score: 0 / 15
Percentage: 0%
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