Question 1 answer
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.
Question 1 answer
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.
21 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 = 7.415, this is within normal range. slightly more to the alkelaemic side.
pCO2 = 34 mmHg, that is slightly low, this patient is hyperventilating. (Normal pCO2 is 40 mmHg on arterial blood and 48 mmHg on venous blood).
60-year-old women presented to the emergency department compla ining of headache and fatigue. Her venous blood gases showed the following:
PH = 7.415
pCO2 = 34 mmHg
Question 1:
PH = 7.51, that is mild alkalaemia
PCO2 = 28, that is less than 40. So we have respiratory alkalosis.
Compensation for acute respiratory alkalosis: HCO3 drops by 2 mmol/L for every 10 mmHg decrease in pCO2 from 40mmHg. Accordingly, HCO3 should drop by (12 x 0.2) = 2.4, SO expected HCO3 is 21.6 (that is close to 23) so we have pure respiratory alkalosis.
51 year old man, recently returned from the middle east, presented with shortness of breath. His CXR was normal. His arterial blood gases showed the following:
PH = 7.51
PaCO2 = 28 mmHg
PO2 = 56 mmHg
Answers:
Hb = 115 g/L, that is mild anaemia. (Remember, anaemia happens when blood cells don’t have enough haemoglobin or there is not enough red blood cells).
RCC (red cells count) = 4.3, that is just within the normal range for men, towards the low side.
19 year-old-man recently returned from Sudan presented with fever.
His Bloods showed the following:
Hb = 115 g/L
RCC = 4.30
Hb = 83 g/L, that is moderate anaemia.
Anaemia happens when blood doesn’t have enough haemoglobin or red blood cells
Red cell count = 3.05, that is low.
Red cell count represent the number of red blood cells per microliter (mcL) of blood. Normal values are:
22 year-old-girl from african origin presented with severe chest pain. Her blood tests showed the following:
Haemoglobin = 83 g/L
Red Cell Count = 3.05