From the archive
Question 1:
Hb = 48 g/L, that is severe life threatening anaemia.
Category Archives: Lab Cases
Lab case 380
An 82 year old man presents to your ED after a syncopal episode. He complains of abdominal pain and diarrhoea. On examination he has a heart rate of 105/min and a BP of 95/65. Rectal examination confirms black, foul smelling stool. His blood results are as follows:
Hb = 48 g/L (115-165)
Lab case 379
50 year old lady presented with fever and diarrhoea after returning from overseas trip. Her venous blood gas showed the following:
PH = 7.02
pCO2 = 36 mmHg
Lab case 378 interpretation
Answers
Question 1:
PH = 7.42, that is within normal range, more to the alkalotic side.
HCO3 = 36.8 mmol/L that is consistent with metabolic alkalosis. Next we will calculate the compensation.
Lab case 378
52-year-old lady presented to the emergency department with recurrent vomiting. She was found to have a slipped lapband. Her venous blood gases showed the following
PH = 7.42
pCO2 = 52 mmHg
Lab case 377 Interpretation
Answers:
PH = 7.24 that is moderate acidaemia.
HCO3 = 16 mmol/L, so we have metabolic acidosis.
Next, we need to calculate the anion gap and the compensation.
Lab case 376 interpretation
Answers:
Question 1:
Colour is clear and colourless, that is usually normal or viral meningitis. (In Bacterial meningitis the CSF looks turbid).
Lab case 376
23-year-old man presented with headache and confusion. His CSF showed the following:
Appearance: Clear and colourless
Lab case 375 interpretation
Question 1:
PH = 7.659, that is severe alkalaemia.
pCO2 = 12.6 mmHg (<40), so we have respiratory alkalosis.
Lab case 375
18-year-old girl presented after a large quantity of weight losing pills. Her blood gases showed the following:
PH = 7.659
pCO2 = 12.6 mmHg