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Table 1 CSF composition reported for human, rabbit and dog

From: Cerebrospinal fluid dynamics and intracranial pressure elevation in neurological diseases

Solute

Humana

Rabbitb

Dogb

Plasma Conc.

CSF Conc.

Plasma Conc.

CSF Conc.

Plasma Conc.

CSF Conc.

Na+ (mM/L)

153

147

148

149

155

151

K+ (mM/L)

4.7

2.9

4.3

2.9

4.6

3.0

Ca2+ (mM/L)

1.3

1.1

5.6

2.5

5.7

2.9

Mg2+ (mM/L)

0.6

1.1

2.0

1.7

1.4

2.0

Cl− (mM/L)

110

113

106

130

121

133

HCO3− (mM/L)

24

22

25

22

26

26

pH

7.40

7.33

7.46

7.27

7.42

7.42

Osmolarity (mOsm)

290

290

298.5

305.2

299.6

305.2

  1. aHuman CSF values from Ransom [37]
  2. bRabbit and dog CSF values from Damkier et al. [38]
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Fluids and Barriers of the CNS

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