Type

Para-
meters

Units

Measuring
range

Test
range

pH

pH

pH scale
nmol/L

6.300-8.000
10.0-501

6.85-7.55
28-141

Blood gas

pCO₂

mmHg
kPa
torr

5.0-250
0.67-33.3
5.0-250

17-160
2.27-21.3
17-160

-

pO₂

mmHg
kPa
torr

0.0-800
0.00-107
0.0-800

20-580
2.67-77.3
20-580

Electrolytes

cCI^-

mmol/L
meq/L

7-350
7-350

95-150
95-150

-

cCa²⁺

mmol/L
meq/L
mg/dL

0.20-9.99
0.40-19.98
0.80-40.04

0.51-2.2
1.0-4.4
2.0-8.8

-

cK⁺

mmol/L
meq/L

0.5-25.0
0.5-25.0

2-8
2-8

-

cNa⁺

mmol/L
meq/L

7-350
7-350

120-180
120-180

Metabolites

cGlu

mmol/L
mg/dL

0.0-60
0-1081

0.5-15
9.0-270

-

cLac

mmol/L
mg/dL
meq/L

0.0-30
0-270
0.0-30

0.5-15
4.5-135
0.5-15

-

cCrea

µmol/L
mg/dL

10-1800
0.1-20.3

50-1500
0.57-17.0

-

ctBil

µmol/L
mg/dL
mg/L

0-1000
0.0-58.5
0-585

0-400
0.0-23.4
0-234

Oximetry

ctHb

g/dL
mmol/L
g/L

0.00-27.7
0.00-17.2
0.0-277

2.5-23
25-230
1.55-14.2

-

sO₂

%
Fraction

0.0-100.0
0.000-1.000

0-100
0-1

-

FO₂Hb

%
Fraction

0.0-100.0
0.000-1.000

0-100
0-1

-

FCOHb

%
Fraction

0.0-100.0
0.000-1.000

0-20
0.0-0.2

-

FMetHb

%
Fraction

0.0-100.0
0.000-1.000

0-20
0.0-0.2

-

FHHb

%
Fraction

0.0-100.0
0.000-1.000

0-100
0-1

-

FHbF

%
Fraction

0.0-100
0.00-1.00

0-80
0.0-0.8

The Measuring range for a parameter is the range within which the analyzer is physically capable of measuring. The measuring range corresponds to the “range of indication” as defined in the “International vocabulary of basic and general terms in the metrology” (VIM).

The Test range for a parameter is the range within which accuracy and precision of a measured parameter has been specified and intended to lie within specified limits. The test range corresponds to the “measuring range” as defined in the “International vocabulary of basic and general terms in the metrology” (VIM).