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
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
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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.
44 year old man presented to ED with fatigue and weakness. His blood gases showed the following:
PH = 7.236
PCO2 = 30 mmol/L
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.
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
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.
80-year-old lady presented with confusion. Her Venous blood gases showed the following:
PH = 7.396
pCO2 = 52 mmHg
Question 1:
PH = 7.30 that is mild acidaemia.
HCO3 = 16 mmol/L (>24) so we have metabolic acidosis.
Next, we need to calculate the anion gap and the compensation (using Winter’s formula)
61-year-old man presented to ED with hypoglycemia that was difficult to correct with oral and IV dextrose. His venous blood gases showed the following.
PH = 7.30
PCO2 = 33 mmol/L
Answers:
PH = 7.39, that is within normal range/
pCO2 = 48 mmHg, that is slightly elevated (Can be considered normal for venous blood)
HCO3 = 29 mmol/L. That is high (Normal value is 24 mmol/L), SO, we have metabolic alkalosis.