Reference Intervals For Heparinized Plasma/ Serum

Question 1

Sodium

Answer 1

133 - 146 mmol/L

Question 2

Sodium Crit

Answer 2

<125 OR >155 mmol/L

Question 3

Potassium

Answer 3

3.5 - 5.0 mmol/L

Question 4

Potassium Crit

Answer 4

<2.6 OR >6.2 mmol/L

Question 5

Chloride

Answer 5

96 - 109 mmol/L

Question 6

Bicarbonate (total CO2)

Answer 6

23 - 31 mmol/L

Question 7

Calcium

Answer 7

2.10 - 2.60 mmol/L

Question 8

Calcium Crit

Answer 8

<1.65 OR >3.25 mmol/L

Question 9

Magnesium

Answer 9

0.70 - 1.00 mmol/L

Question 10

Magnesium Crit

Answer 10

<0.40 OR >1.90 mmol/L

Question 11

Phosphorus (phosphate)

Answer 11

0.80 - 1.45 mmol/L

Question 12

Phosphorus Crit

Answer 12

<0.40 mmol/L

Question 13

Anion Gap

Answer 13

4 - 16 mmol/L

Question 14

Osmolality (serum)

Answer 14

280 - 300 mmol/kg

Question 15

Osmolal gap

Answer 15

<10 mmol/kg