Lab Case 18

A 35 year old man is brought to your Emergency Department by ambulance following a suicide attempt. His wife found him in his car with the engine running at 7.30 am, he had connected a hose from his exhaust into the car. He was last seen at 7 am that same morning.

On examination :

GCS 14

BP 150/90

PR 99/min

Sats 97 – NP 4litres

Describe and Interpret his ABG ( after 5 minutes of 15 litres oxygen via non rebreather)

pH 7.40 (7.36-7.44)                                                      Na 140 (134-146)

pCO2 44 (35-45 mmHg)                                               K 3.6 (3.4-5.5)
pO2 362                                                                        Cl 107 (95-108)
HCO3 27 (24+-2)                                                        
base excess 2
Sats 100
Lactate 2.5
Glucose 9.4
COHb 28.5%
MetHb 0.9%

Describe your management

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