ABG worksheet 2021 - Questions/Answers of ABG\'s practice questions PDF

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Questions/Answers of ABG's practice questions...

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Reminders of the step-by-step process to ABG analysis 1. Know, or have handy, your normal values 2. Always look at pH first 3. Look at PaCO2 4. Look at HCO3- and Base Excess 5. Look at PaO2 (Oxygen)- consider the FiO2

Normal values pH

7.35 – 7.45

PaCO2

35 – 45 (mmHg)

PaO2

80 – 100 (mmHg)

HCO3-

22 – 26 mmol/l

BE

-2 « +2

Analyse the following ABG results and label each e.g. ‘non-compensated respiratory acidosis’ For each, discuss the findings and what might be happening with body systems and general observations (e.g. the respiratory system and respiratory rate) 1) pH PaCO2 PaO2 HCO3BE

7.33 – acidic 39 – normal 75 – low 18 – acidic -5 - acidic

Metabolic acidosis - no signs of compensation 2) pH PaCO2 PaO2 HCO3BE

7.49 33 75 23 +1

Ph – alkalosis CD – slightly low (...