SAQ 1493 – Vomiting in type 1 diabetes with venous blood gas

Marked out of 16.00

A 28-year-old man with type 1 diabetes presents to the ED after two days of vomiting. His venous blood gas is shown.

Test Result Reference range
pH 7.41 7.35-7.45
pCO2 36 mmHg 35-45 mmHg
HCO3 22 mmol/L 18-26 mmol/L
Base excess 2.2 mmol/L -3 to +3 mmol/L
Sodium 132 mmol/L 135-145 mmol/L
Potassium 5.1 mmol/L 3.5-4.5 mmol/L
Chloride 82 mmol/L 100-110 mmol/L
Glucose 42 mmol/L 3.0-7.8 mmol/L
Lactate 3.0 mmol/L 0.5-2.2 mmol/L
Creatinine 367 micromol/L 73-108 micromol/L

Identify the blood gas abnormalities and give likely causes for each abnormality.

(Marked out of 8.0)


/ 8

Given the observations below, list your management steps, including doses and endpoints where appropriate.

(Marked out of 8.0)

Observation Value
GCS 15
Pulse 120 /min
BP 100/70 mmHg
Respiratory rate 22 /min
Oxygen saturation 99% on room air


/ 8

Total Score: 0 / 16

Percentage: 0%