Clinical Pathology Laboratory - Reference Intervals
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Venous Blood Gas and Electrolyte
Reference Intervals
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| These reference ranges were established in our laboratory using
the radiometer ABL-600 and are only valid for this instrumentation
using heparinized venous blood samples that are maintained anaerobically
(in a capped syringe or green top tube). |
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Analyte
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Canine
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Feline
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Equine
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Bovine
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pH*
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7.31 - 7.46
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7.21 - 7.41
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7.36 - 7.43
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7.36 - 7.46
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pCO2*
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27 - 50
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28 - 50
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45 - 52
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41 - 50
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pO2**
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-
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-
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-
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-
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HCO3
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17 - 28
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16 - 23
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26 - 32
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24 - 34
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TCO2
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18 - 29
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17 - 24
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27 - 33
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25 - 35
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SBE
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-7 to 2.9
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-8.5 to -1.5
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1.1 to 7.1
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0.7 to +7.6
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Na
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145 - 151
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149 - 157
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136 - 142
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137 - 143
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K
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3.9 - 5.1
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3.3 - 4.5
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2.2 - 4.6
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3.2 - 4.7
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Cl
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110 - 119
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117 - 127
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98 - 104
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93 - 105
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ICa
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1.18 - 1.37
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1.07 - 1.47
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1.40 - 1.74
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1.11 - 1.29
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AG
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11 - 20
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13 - 20
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9 - 16
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14 - 21
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ICa@7.4
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1.16 - 1.33
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1.01 - 1.40
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1.38 - 1.74
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1.12 - 1.28
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* Same values for both venous and arterial blood.
** pO2 arterial = 80 to 100 mmHg
ICa @ 7.4: Ionized calcium corrected to a pH of 7.4; the formula to
calculate this correction has only been validated for a pH range of
7.2 - 7.6.
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