Answers:
Ph = 7.25, that is moderate acidaemia.
pCO2 = 58 mmHg, so we have respiratory acidosis.
Category Archives: Lab Cases
Lab case 444
18 year-old-girl presented to ED with reduced level of consciousness. She is known to by drugs online.
Her venous blood gases showed the following:
PH = 7.25
Lab case 443 interpretation
Answers:
PH = 6.9, that is severe acidaemia/
pCO2 = 72 mmHg. o, we have respiratory acidosis.
Lab case 443
20 year-year-old man brought to ED after a car accident. His blood pressure was 80/41 and he was unconscious. His blood gases showed the following:
PH = 6.9
Lab case 442 interpretation
From the archive
Answers:
Question 1
PH = 7.236, that is moderate acidaemia
HCO3 = 12.5 mmol/L. So we have metabolic acidosis.
Next we need to calculate the compensation and the the anion gap.
Lab case 442
44 year old man presented to ED with fatigue and weakness. His blood gases showed the following:
PH = 7.236
PCO2 = 30 mmol/L
Lab case 441 interpretation
Answers:
PH = 7.15, that is severe acidaemia
HCO3 = 6.5 mmol/L, so we have metabolic acidosis.
Since we have metabolic acidosis, then we need to calculate compensation and anion gap.
Lab case 441
An unconscious young girl, was brought to ED by ambulance. Apparently she ingested an unknown substance during a party. Her venous blood gases showed the following:
PH = 7.15
pCO2 = 19 mmHg
Lab case 440 interpretation
Answers:
PH = 7.396, that is within normal range, very slightly to the acidaemic side/
pCO2 = 52 mmHg, that is high. It is suggestive of the presence of respiratory acidosis
HCO3 = 31 mmol/L, that is high and suggest the presence of metabolic alkalosis.
Lab case 440
80-year-old lady presented with confusion. Her Venous blood gases showed the following:
PH = 7.396
pCO2 = 52 mmHg