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Flashcards in acid base tutorial Deck (11):
1

what are the four steps in assessing arterial blood gasses

assess oxygenation
determine the status of the ph
determine the primary problem
decide if compensation is occurring

2

what is normal o2 partial pressure

12-13 kPa

3

what is normal pCO2

4.5-5.8

4

what is normal bicarbonate concentration

22-26 mmol/L

5

how do you determine the problem

if the pH arrows and the pCO2 arrows are going in the same direction then metabolic
if different then respiratory

6

how do you decide if compensation is occurring

if the pCO2 arrow and the bicarb arrow are going in the same direction then compensation may be occurring

7

what conditions might cause an anion gap

something which produces more anions e.g. lactic acidosis or ketoacidosis

8

what conditions would cause acidosis but no anion gap

something where anions are being lost e.g. diarrhoea or renal loss of bicarb

9

what enzyme is an indicator of pancreatitis

amylase

10

what is Cullen's sign

periumbilical bruising which may indicate acute pancreatitis

11

what is Grey turner's sign

flank bruising which indicates retroperitoneal bleeding
may be acute pancreatitis