Blood Gases
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Question 1 of 4
1. Question
The following blood gas was taken from a patient who was short of breath with COPD. They were breathing 35% Oxygen. It shows a relative hypoxia and a respiratory acidaemia, with metabolic compensation?
pH 7.27 PaCO2 8.7 kPa PaO2 8.1 kPa Base excess 6 mmol/L CorrectIncorrect -
Question 2 of 4
2. Question
The following venous gas was taken from a 25 year old male who was vomiting after a night out, he was confused and seemed short of breath, but had oxygen saturations of 100% on air.
It shows a metabolic alkalaemia?
pH 6.99 PCO2 2.6 kPa PO2 8.4 kPa Base excess -23 mmol/L Glucose 40 mmol/L Na+ 137mmol/L Cl 98 mmol/L HCO3 7 mmol/L CorrectIncorrect -
Question 3 of 4
3. Question
A venous blood gas below was taken from a patient who presented to ED after having cut her arm on a glass bottle and is in significant pain. Her pulse oximetry show saturations of 99% and a pulse rate of 110 bpm.
It shows a metabolic alkalaemia?
pH 7.50 PCO2 2.5 kPa PO2 6.1 kPa Base excess 1.5 mmol/L CorrectIncorrect -
Question 4 of 4
4. Question
A mechanic is brought into the ED having been found late a night collapsed in his workshop with a suicide note. One of your colleagues has a look at his arterial gas below and says you need to think about ethylene glycol poisoning. The are unconscious in Resus and breathing room air at present.
Are they right?
pH 7.13 PCO2 2.67 kPa PO2 15.0 kPa Base excess -16 mmol/L Glucose 6.2 mmol/L Na+ 137 mmol/L Cl 96 mmol/L HCO3 8 mmol/L CorrectIncorrect