APPENDIX
IX
TABLE IX-1
Reference Intervals for Clinical Laboratory Parameters*
Present Reference
Interval
Component
(Examples)
Present
Unit
Conversion
Factor
SI
Reference
Interval
SI Unit
Symbol
Significant
Digits
Suggested
Minimum
Increment
Clinical Hematology
Erythrocyte count (B)
female
3.5-5.0
106/mm3
1
3.5-5.0
1012/L
X.X
0.1 1012/L
male
4.3-5.9
106/mm3
1
4.3-5.9
10i2/L
x.x
0.1 10i2/L
Erythrocyte count (Sf)
0
mnr3
1
0
106/L
XX
1
106/L
Erythrocyte sedimentation rate
(ESR) (BErc)
female
0-30
mm/h
1
0-30
mm/h
XX
1
mm/h
male
0-20
mm/h
1
0-20
mm/h
XX
1 mm/h
Hamatocrit (BErcs)
volume fraction
female
33^13
%
0.01
0.33-0.43
i
0.XX
0.01
male
39^19
%
0.01
0.39-0.49
i
0.XX
0.01
Hemoglobin (B)
mass concentration
female
12.0-15.0
g/dL
10
120-150
g/L
XXX
1
g/L
male
13.6-17.2
g/dL
10
136-172
g/L
XXX
1 g/L
substance cone. Hb (Fe)
female
12.0-15.0
g/dL
0.6206
7.45-9.30
mmol/L
XX.XX
0.05 mmol/L
male
13.6-17.2
g/dL
0.6206
8.45-10.65
mmol/L
XX.XX
0.05 mmol/L
Leukocyte count (B)
number fraction
3200-9800
mm-3
%
0.001
0.01
3.2-9.8
109/L
1
XX.X
0.XX
0.1 109/L
0.01
(“differential”)
Leukocyte count (Sf)
0-5
mm 3
1
0-5
106/L
XX
1
106/L
Mean corpuscular hemoglobin
(MCH) (BErc)
mass
27-33
pg
1
27-33
Pg
XX
1
pg
amount of substance Hb (Fe)
27-33
pg
0.06206
1.70-2.05
fmol
x.xx
0.05 fmol
Mean corpuscular hemoglobin
concentration (MCHC)
(BErc)
mass concentration
33-37
g/dL
10
330-370
g/L
xxo
10 g/L
substance cone. Hb (Fe)
33-37
g/dL
0.6206
20-23
mmol/L
XX
1
mmol/L
Mean corpuscular volume
(MCV) (BErc)
erythrocyte volume
76-100
JLtm3
1
76-100
fL
XXX
1
fL
Platelet count (B)
130-400
103/mm3
1
130^100
109/L
XXX
5 109/L
Reticulocyte count (B)—adults
10000-75000
mm-3
0.001
10-75
io9/l
XX
1
109/L
number fraction
1-24
0/00 (number
per 1000
erythrocytes)
0.001
0.001-0.024
1
o.xxx
0.001
0.1-2.4
%
0.01
0.001-0.024
1
o.xxx
0.001
Clinical Chemistry
Acetaminophen (P)—toxic
>5.0
mg/dL
66.16
>330
jltmol/L
xxo
10/xmol/L
Acetoacetate (S)
0.3-3.0
mg/dL
97.95
30-300
jUmol/L
xxo
10jUmol/L
Acetone (B, S)
0
mg/dL
172.2
0
jUmol/L
xxo
10jUmol/L
Acid phosphatase (S)
0-5.5
U/L
16.67
0-90
nkat/L
XX
2nkat/L
Adrenocorticotropin (ACTH) (P)
20-100
Pg/ml
0.2202
4-22
pmol/L
XX
1
pmol/L
Alanine aminotransferase (ALT) (S)
0-35
U/L
0.01667
0-0.58
jttkat/L
X.XX
0.02 jUkat/L
Albumin (S)
4.0-6.0
g/dl
10.00
40-60
g/L
XX
1 g/L
Aldolase (S)
0-6
U/L
16.67
0-100
nkat/L
xxo
20 nkat/L
Aldosterone (S)
normal salt diet
8.1-15.5
ng/dL
27.74
220-430
pmol/L
xxo
10 pmol/L
restricted salt diet
20.8-44.4
ng/dL
27.74
580-1240
pmol/L
xxo
10 pmol/L
Aldosterone (U)—sodium excretion
- 25 mmol/d
18-85
jUg/24 h
2.774
50-235
nmol/d
XXX
5 nmol/d
= 75-125 mmol/d
5-26
jlig/24 h
2.774
15-70
nmol/d
XXX
5 nmol/d
= 200 mmol/d
1.5-12.5
Rg/24h
2.774
5-35
nmol/d
XXX
5 nmol/d
Alkaline phosphatase (S)
30-120
U/L
0.01667
0.5-2.0
Jtkat/L
X.X
0.1 Rkat/L
Alphaj-antitrypsin (S)
150-350
mg/dL
0.01
1.5-3.5
g/L
x.x
0.1 g/L
Alpha-fetoprotein (S)
0-20
ng/mL
1.00
0-20
Rg/L
XX
lflg/L
967
