| Normal Laboratory Values for ChildrenNORMAL LABORATORY VALUES FOR CHILDREN
|
Normal Values
|
|
CHEMISTRY
|
Albumin
|
0-1 y
|
2.0-4.0 g/dL
|
|
1 y to adult
|
3.5-5.5 g/dL
|
Ammonia
|
Newborns
|
90-150 mcg/dL
|
|
Children
|
40-120 mcg/dL
|
|
Adults
|
18-54 mcg/dL
|
Amylase
|
Newborns
|
0-60 units/L
|
|
Adults
|
30-110 units/L
|
Bilirubin, conjugated, direct
|
Newborns
|
<1.5 mg/dL
|
|
1 mo to adult
|
0-0.5 mg/dL
|
Bilirubin, total
|
0-3 d
|
2.0-10.0 mg/dL
|
|
1 mo to adult
|
0-1.5 mg/dL
|
Bilirubin, unconjugated, indirect
|
|
0.6-10.5 mg/dL
|
Calcium
|
Newborns
|
7.0-12.0 mg/dL
|
|
0-2 y
|
8.8-11.2 mg/dL
|
|
2 y to adult
|
9.0-11.0 mg/dL
|
Calcium, ionized, whole blood
|
|
4.4-5.4 mg/dL
|
Carbon dioxide, total
|
|
23-33 mEq/L
|
Chloride
|
|
95-105 mEq/L
|
Cholesterol
|
Newborns
|
45-170 mg/dL
|
/> See following tables for age- and gender-specific values
|
0-1 y
|
65-175 mg/dL
|
1-20 y
|
120-230 mg/dL
|
Creatinine
|
0-1 y
|
≤0.6 mg/dL
|
|
1 y to adult
|
0.5-1.5 mg/dL
|
Glucose
|
Newborns
|
30-90 mg/dL
|
|
0-2 y
|
60-105 mg/dL
|
|
Children to Adults
|
70-110 mg/dL
|
Iron
|
|
|
|
Newborns
|
110-270 mcg/dL
|
|
Infants
|
30-70 mcg/dL
|
|
Children
|
55-120 mcg/dL
|
|
Adults
|
70-180 mcg/dL
|
Iron binding
|
Newborns
|
59-175 mcg/dL
|
|
Infants
|
100-400 mcg/dL
|
|
Adults
|
250-400 mcg/dL
|
Lactic acid, lactate
|
|
2-20 mg/dL
|
Lead, whole blood
|
|
<10 mcg/dL
|
Lipase
|
|
|
|
Children
|
20-140 units/L
|
|
Adults
|
0-190 units/L
|
Magnesium
|
|
1.5-2.5 mEq/L
|
Osmolality, serum
|
|
275-296 mOsm/kg
|
Osmolality, urine
|
|
50-1400 mOsm/kg
|
|
|
|
Phosphorus
|
Newborns
|
4.2-9.0 mg/dL
|
|
6 wk to 19 mo
|
3.8-6.7 mg/dL
|
|
19 mo to 3 y
|
2.9-5.9 mg/dL
|
|
3-15 y
|
3.6-5.6 mg/dL
|
|
>15 y
|
2.5-5.0 mg/dL
|
|
|
|
|
|
|
|
|
|
Potassium, plasma
|
Newborns
|
4.5-7.2 mEq/L
|
|
2 d to 3 mo
|
4.0-6.2 mEq/L
|
|
3 mo to 1 y
|
3.7-5.6 mEq/L
|
|
1-16 y
|
3.5-5.0 mEq/L
|
Protein, total
|
0-2 y
|
4.2-7.4 g/dL
|
|
>2 y
|
6.0-8.0 g/dL
|
Sodium
|
|
136-145 mEq/L
|
Triglycerides
|
Infants
|
0-171 mg/dL
|
/> See following tables for age- and gender-specific values
|
Children
|
20-130 mg/dL
|
Adults
|
30-200 mg/dL
|
Urea nitrogen, blood
|
0-2 y
|
4-15 mg/dL
|
|
2 y to Adult
|
5-20 mg/dL
|
Uric acid
|
Male
|
3.0-7.0 mg/dL
|
|
Female
|
2.0-6.0 mg/dL
|
ENZYMES
|
|
|
Alanine aminotransferase (ALT) (SGPT)
|
0-2 mo
|
8-78 units/L
|
|
>2 mo
|
8-36 units/L
|
Alkaline phosphatase (ALKP)
|
Newborns
|
60-130 units/L
|
|
0-16 y
|
85-400 units/L
|
|
>16 y
|
30-115 units/L
|
Aspartate aminotransferase (AST)
|
Infants
|
18-74 units/L
|
(SGOT)
|
Children
|
15-46 units/L
|
|
Adults
|
5-35 units/L
|
Creatine kinase (CK)
|
Infants
|
20-200 units/L
|
|
Children
|
10-90 units/L
|
|
Adult male
|
0-206 units/L
|
|
Adult female
|
0-175 units/L
|
Lactate dehydrogenase (LDH)
|
Newborns
|
290-501 units/L
|
|
1 mo to 2 y
|
110-144 units/L
|
|
>16 y
|
60-170 units/L
|
Blood Gases
|
Arterial
|
Capillary
|
Venous
|
pH
|
7.35-7.45
|
7.35-7.45
|
7.32-7.42
|
pCO2 (mm Hg)
|
35-45
|
35-45
|
38-52
|
pO2 (mm Hg)
|
70-100
|
60-80
|
24-48
|
HCO3 (mEq/L)
|
19-25
|
19-25
|
19-25
|
TCO2 (mEq/L)
|
19-29
|
19-29
|
23-33
|
O2 saturation (%)
|
90-95
|
90-95
|
40-70
|
Base excess (mEq/L)
|
5 to +5
|
5 to +5
|
5 to +5
|
Classification Serum Lipid Concentrations
| /> Classification
|
/> Percentile
|
Cholesterol
(mg/dL)
|
LDL-C
(mg/dL)
|
Triglycerides
(mg/dL)
|
|
Children
|
Adults
|
Children
|
Adults
|
Adults
|
Acceptable/optimal
|
<75th
|
<170
|
<200
|
<110
|
<100
|
<150
|
Above optimal
|
*
|
*
|
*
|
*
|
100-129
|
*
|
Borderline high
|
75th to 95th
|
170-199
|
200-239
|
110-129
|
130-159
|
150-199
|
High
|
>95th
|
≥200
|
≥240
|
≥130
|
160-189
|
200-499
|
Very high
|
*
|
*
|
*
|
*
|
≥190
|
≥500
|
1Adapted from American Academy of Pediatrics Committee on Nutrition, “Cholesterol in Childhood,” Pediatrics , 1998, 101(1 Pt 1):141-7.
|
2American Academy of Pediatrics Committee on Nutrition, “Lipid Screening and Cardiovascular Health in Childhood,” Pediatrics , 2008, 122:(1)198-208 and “Third Report of the National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (Adult Treatment Panel III),” May 2001, www.nhlbi.nih.gov/guidelines/cholesterol.
|
*Lack of specific type of classification in either pediatric or adult recommendations.
|
Serum Lipid Concentrations by Age and Gender
| /> |
Males
(mg/dL)
|
Females
(mg/dL)
|
|
5-9 y
|
10-14 y
|
15-19 y
|
5-9 y
|
10-14 y
|
15-19 y
|
Total Cholesterol
|
50th percentile
|
153
|
161
|
152
|
164
|
159
|
157
|
75th percentile
|
168
|
173
|
168
|
177
|
171
|
176
|
90th percentile
|
183
|
191
|
183
|
189
|
191
|
198
|
95th percentile
|
186
|
201
|
191
|
197
|
205
|
208
|
Triglycerides
|
50th percentile
|
48
|
58
|
68
|
57
|
68
|
64
|
75th percentile
|
58
|
74
|
88
|
74
|
85
|
85
|
90th percentile
|
70
|
94
|
125
|
103
|
104
|
112
|
95th percentile
|
85
|
111
|
143
|
120
|
120
|
126
|
LDL-C
|
50th percentile
|
90
|
94
|
93
|
98
|
94
|
93
|
75th percentile
|
103
|
109
|
109
|
115
|
110
|
110
|
90th percentile
|
117
|
123
|
123
|
125
|
126
|
129
|
95th percentile
|
129
|
133
|
130
|
140
|
136
|
137
|
HDL
|
5th percentile
|
38
|
37
|
30
|
36
|
37
|
35
|
10th percentile
|
43
|
40
|
34
|
38
|
40
|
38
|
25th percentile
|
49
|
46
|
39
|
48
|
45
|
43
|
50th percentile
|
55
|
55
|
46
|
52
|
52
|
51
|
Adapted from American Academy of Pediatrics Committee on Nutrition, “Lipid Screening and Cardiovascular Health in Childhood,” Pediatrics , 2008, 122:(1)198-208.
|
Thyroid Function Tests
T4 (thyroxine)
|
1-7 d
|
10.1-20.9 mcg/dL
|
|
8-14 d
|
9.8-16.6 mcg/dL
|
|
1 mo to 1 y
|
5.5-16.0 mcg/dL
|
|
>1 y
|
4.0-12.0 mcg/dL
|
|
|
|
FTI
|
1-3 d
|
9.3-26.6
|
|
1-4 wk
|
7.6-20.8
|
|
1-4 mo
|
7.4-17.9
|
|
4-12 mo
|
5.1-14.5
|
|
1-6 y
|
5.7-13.3
|
|
>6 y
|
4.8-14.0
|
|
|
|
T3
|
Newborns
|
100-470 ng/dL
|
|
1-5 y
|
100-260 ng/dL
|
|
5-10 y
|
90-240 ng/dL
|
|
10 y to Adult
|
70-210 ng/dL
|
|
|
|
T3 uptake
|
|
35%-45%
|
|
|
|
TSH
|
Cord
|
3-22 micro international units/mL
|
|
1-3 d
|
<40 micro international units/mL
|
|
3-7 d
|
<25 micro international units/mL
|
|
>7 d
|
0-10 micro international units/mL
|
Hematology Values
|
Age
|
Hgb
(g/dL)
|
Hct
(%)
|
RBC
(mill/mm3)
|
RDW
|
MCV
(fL)
|
MCH
(pg)
|
MCHC
(%)
|
PLTS
(x 103/mm3)
|
0-3 d
|
15.0-20.0
|
45-61
|
4.0-5.9
|
<18
|
95-115
|
31-37
|
29-37
|
250-450
|
1-2 wk
|
12.5-18.5
|
39-57
|
3.6-5.5
|
<17
|
86-110
|
28-36
|
28-38
|
250-450
|
1-6 mo
|
10.0-13.0
|
29-42
|
3.1-4.3
|
<16.5
|
74-96
|
25-35
|
30-36
|
300-700
|
7 mo to 2 y
|
10.5-13.0
|
33-38
|
3.7-4.9
|
<16
|
70-84
|
23-30
|
31-37
|
250-600
|
2-5 y
|
11.5-13.0
|
34-39
|
3.9-5.0
|
<15
|
75-87
|
24-30
|
31-37
|
250-550
|
5-8 y
|
11.5-14.5
|
35-42
|
4.0-4.9
|
<15
|
77-95
|
25-33
|
31-37
|
250-550
|
13-18 y
|
12.0-15.2
|
36-47
|
4.5-5.1
|
<14.5
|
78-96
|
25-35
|
31-37
|
150-450
|
Adult male
|
13.5-16.5
|
41-50
|
4.5-5.5
|
<14.5
|
80-100
|
26-34
|
31-37
|
150-450
|
Adult female
|
12.0-15.0
|
36-44
|
4.0-4.9
|
<14.5
|
80-100
|
26-34
|
31-37
|
150-450
|
WBC and Diff
|
Age
|
WBC
(x 103/mm3)
|
Segs
|
Bands
|
Lymphs
|
Monos
|
Eosinophils
|
Basophils
|
Atypical
Lymphs
|
No. of
NRBCs
|
0-3 d
|
9.0-35.0
|
32-62
|
10-18
|
19-29
|
5-7
|
0-2
|
0-1
|
0-8
|
0-2
|
1-2 wk
|
5.0-20.0
|
14-34
|
6-14
|
36-45
|
6-10
|
0-2
|
0-1
|
0-8
|
0
|
1-6 mo
|
6.0-17.5
|
13-33
|
4-12
|
41-71
|
4-7
|
0-3
|
0-1
|
0-8
|
0
|
7 mo to 2 y
|
6.0-17.0
|
15-35
|
5-11
|
45-76
|
3-6
|
0-3
|
0-1
|
0-8
|
0
|
2-5 y
|
5.5-15.5
|
23-45
|
5-11
|
35-65
|
3-6
|
0-3
|
0-1
|
0-8
|
0
|
5-8 y
|
5.0-14.5
|
32-54
|
5-11
|
28-48
|
3-6
|
0-3
|
0-1
|
0-8
|
0
|
13-18 y
|
4.5-13.0
|
34-64
|
5-11
|
25-45
|
3-6
|
0-3
|
0-1
|
0-8
|
0
|
Adults
|
4.5-11.0
|
35-66
|
5-11
|
24-44
|
3-6
|
0-3
|
0-1
|
0-8
|
0
|
Segs = segmented neutrophils.
|
Bands = band neutrophils.
|
Lymphs = lymphocytes.
|
Monos = monocytes.
|
Erythrocyte Sedimentation Rates and Reticulocyte Counts
Sedimentation rate, Westergren
|
Children
|
0-20 mm/hour
|
|
Adult male
|
0-15 mm/hour
|
|
Adult female
|
0-20 mm/hour
|
|
|
|
Sedimentation rate, Wintrobe
|
Children
|
0-13 mm/hour
|
|
Adult male
|
0-10 mm/hour
|
|
Adult female
|
0-15 mm/hour
|
|
|
|
Reticulocyte count
|
Newborns
|
2%-6%
|
|
1-6 mo
|
0%-2.8%
|
|
Adults
|
0.5%-1.5%
|
Cerebrospinal Fluid Values, Normal
Cell count
|
|
% PMNs
|
Preterm mean
|
9 (0-25.4 WBC/mm3)
|
57%
|
Term mean
|
8.2 (0-22.4 WBC/mm3)
|
61%
|
>1 mo
|
0.7
|
0
|
|
|
|
Glucose
|
|
|
Preterm
|
24-63 mg/dL
|
mean 50
|
Term
|
34-119 mg/dL
|
mean 52
|
Children
|
40-80 mg/dL
|
|
|
|
|
CSF glucose/blood glucose
|
|
|
Preterm
|
55-105%
|
|
Term
|
44-128%
|
|
Children
|
50%
|
|
|
|
|
Lactic acid dehydrogenase
|
5-30 units/mL
|
mean 20 units/mL
|
|
|
|
Myelin basic protein
|
<4 ng/mL
|
|
|
|
|
Pressure: Initial LP (mm H2O)
|
Newborns
|
80-110 (<110)
|
|
Infants/children
|
<200 (lateral recumbent position)
|
Respiratory movements
|
5-10
|
|
|
|
|
Protein
|
|
|
Preterm
|
65-150 mg/dL
|
mean 115
|
Term
|
20-170 mg/dL
|
mean 90
|
Children
|
|
|
Ventricular
|
5-15 mg/dL
|
|
Cisternal
|
5-25 mg/dL
|
|
Lumbar
|
5-40 mg/dL
|
|
Normal Laboratory Values for Children has been found in Pediatric Drug Lookup
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