Labs

When your child’s labs first come back, take this info into her pediatrician and ask which set of figures reflects the norm for her. Thereafter, you will be able to tell where your child's results fall without having someone explain it to you. Saves you a lot of time and worry!

Diagnostic and Therapeutic Information

Blood Chemistries/Body Fluids

(The following was found in Diagnostic and Therapeutic Information.)

Values compiled from published literature and from the Johns Hopkins Hospital Dept. of Laboratory Medicine. Values vary with the analytic method used, if doubt exists, consult your lab for its analytic method and range of normal values.

The first set of figures for each age group is Conventional units, and the second is SI units. The "Systeme Internationale" (SI) is used in Europe, and "Conventional units" is used in the U.S. Please keep in mind that labs do Quality Assurance and Controls all the time so ranges differ by some from day to day.

Acid Phosphatase

Newborn – 7.4-19.4 U/L, 7.4-19.4 U/L

2-13 yr – 6.4-15.2 U/L, 6.4-15.2 U/L

Adult male – 0.5-11.0 U/L, 0.5-11.0 U/L

Adult female – 0.2-9.5 U/L, 0.2-9.5 U/L

Alanine Aminotransferase (ALT)

Infant—<54 U/L, <54 U/L

Child/Adult – 1-30 U/L, 1-30 U/L

Aldolase

Newborn—<32 U/L, <32 U/L

Child—<16 U/L, <8 U/L

Adult—<8 U/L, <8 U/L

Alkaline Phosphatase

Infant—150-420 U/L, 150-420 U/L

2-10 yr – 100-320 U/L, 100-320 U/L

11-18 yr male – 100-390 U/L, 100-390 U/L

11-18 yr female – 100-320 U/L, 100-320 U/L

Adult – 30-120 U/L, 30-100 U/L

Alpha-1 Antitrypsin

93-224 mg/dl, 0.93-2.24 g/L

Alpha Fetoprotein

Fetal (1st trimester) – 200-400 mg/dl, Peak 2-4 g/L

Cord—<5mg/dl, <0.05 g/L

>1yr-adult—<30ng/ml, <30mcg/L

Tumor marker

0-10 mg/ml

Ammonia Nitrogen (Heparinized Venous Specimen on ice water analyzed within 30 minutes)

Newborn – 90-150 mcg/dl, 64-107 mcmol N/L

0-2 wk – 79-129 mcg/dl, 56-92 mcmol N/L

>1 mo – 29-70 mcg/dl, 21-50mcmol N/L

Adult – 0-50 mcg/dl, 0-35.7 mcmol N/L

Amylase

Newborn – 0-44 U/L, 5-65 U/L

Adult – 0-88 U/L, 0-130 U/L

Anti-Hyaluronidase Antibody

<1:256

Antinuclear Antibody

<1:160

Anti-Streptolysin O Titer (4x rise at weekly interval is significant)

Preschool—<1:85

School age—<1:170

Older adult—<1:85

Note: Alternatively, values up to 200 Todd units is normal

Arsenic

Normal—<3mcg/dl, <0.39 mcmol/L

Acute poisoning – 60-930 mcg/dl, 7.98-124 mcmol/L

Chronic poisoning – 10-50 mcg/dl, 1.33-6.65 mcmol/L

Aspartate Aminotransferase (AST)

Newborn/infant – 20-65 U/L, 20-65 U/L

Child/adult – 0-35 U/L, 0-4350 U/L

Bicarbonate

Premature – 18-26 mEq/L, 18-26 mmol/L

Full term – 20-25 mEq/L, 20-25 mmol/L

>2 yr – 22-26 mEq/L, 22-26 mmol/L

Bilirubin (Total)

Cord – Preterm—<1.8 mg/dl, <30 mcmol/L

Cord – Term—<1.8 mg/dl, <30 mcmol/L

0-1 day – Preterm—<8 mg/dl, 137 mcmol/L

0-1 day – Term—<6 mg/dl, <103 mcmol/L

1-2 days – Preterm—<12 mg/dl, <205 mcmol/L

1-2 days – Term—<8 mg/dl, <137 mcmol/L

3-7 days – Preterm—<16 mg/dl, <274 mcmol/L

3-7 days – Term—<12 mg/dl, <205 mcmol/L

7-30 days – Preterm—<12 mg/dl, <205 mcmol/L

7-30 days – Term—<7mg/dl, <120 mcmol/L

Thereafter – Preterm—<2 mg/dl, <34 mcmol/L

Thereafter – Term – 1.2 mg/dl, <20.5 mcmol/L

Adult – 0.1-1.2 mg/dl, 1.7-20.5 mcmol/L

Bilirubin (Conjugated)

0-0.4 mg/dl, 0-8 mcmol/L

Calcium (Total)

Premature <1 wk – 6-10 mg/dl, 1.5-2.5 mmol/L

Full Term <1wk – 7.0-12.0 mg/dl, 1.75-3.0 mmol/L

Child – 8.0-10.5 mg/dl, 2-2.6 mmol/L

Adult – 8.5-10.5 mg/dl, 2.1-2.6 mmol/L

Calcium (Ionized)

Newborn <48 hr – 4.0-4.7 mg/dl, 1.00-1.18 mmol/L

Adult – 4.52-5.28 mg/dl, 1.13-1.32 mmol/L

Carbon Dioxide (CO2 Content)

Cord blood – 14-22 mEq/L, 14-22 mmol/L

Infant/child – 20-24 mEq/L, 20-24 mmol/L

Adult – 24-30 mEq/L, 24-30 mmol/L

Carbon Monoxide (Carboxyhemoglobin)

Nonsmoker – 0%-2% of total hemoglobin

Smoker – 2%-10% of total hemoglobin

Toxic – 20%-60% of total hemoglobin

Lethal—>60% of total hemoglobin

Carotenoids (Carotenes)

Infant – 20-70 mcg/dl, 0.37-1.30 mcmol/L

Child – 40-130 mcg/dl, 0.74-2.42 mcmol/L

Adult – 50-250 mcg/dl, 0.95-4.69 mcmol/L

Ceruloplasmin

21-53 mg/dl, 210-530 mg/L

Chloride

Pediatric – 99-111 mEq/L, 99-111 mmol/L

Adult – 96-109 mEq/L, 96-109 mEq/L

Cholesterol (See Lipids)

Copper

0-6 mo – 20-70 mcg/dl, 3.1-11 mcmol/L

6 yr – 90-190 mcg/dl, 14-30 mcmol/L

12 yr – 80-160 mcg/dl, 12.6-25 mcmol/L

Adult male – 70-140 mcg/dl, 11-22 mcmol/L

Adult female – 80-155 mcg/dl, 12.6-24.3 mcmol/L

C-Reactive Protein

Negative

Creatine Kinase (Creatine Phosphokinase)

Newborn – 10-200 U/L, 10-200 U/L

Adult male – 12-80 U/L, 12-80 U/L

Adult female – 10-55 U/L, 10-55 U/L

Creatinine (Serum)

Cord – 0.6-1.2 mg/dl, 53-106 mcmol/L

Newborn – 0.3-1.0 mg/dl, 27-88 mcmol/L

Infant – 0.2-0.4 mg/dl, 18-35 mcmol/L

Child – 0.3-0.7 mg/dl, 27-62 mcmol/L

Adolescent – 0.5-1.0 mg/dl, 44-88 mcmol/L

Adult male – 0.6-1.3 mg/dl, 53-115 mcmol/L

Adult female – 0.5-1.2 mg/dl, 44-106 mcmol/L

Ferritin

Newborn – 25-200 ng/ml, 25-200 mcg/L

1 mo – 200-600 ng/ml, 200-600 mcg/L

6 mo – 50-200 ng/ml, 50-200 mcg/L

6 mo-15 yr – 7-140 ng/ml, 7-140 mcg/L

Adult male – 15-200 ng/ml, 15-200 mcg/L

Adult female – 12-150 ng/ml, 12-150 mcg/L

Fibrinogen

200-400 mg/dl, 2-4 g/L

Folic Acid (Folate)

>3 ng/ml, 4.0-20.0 nmol/L

Folic Acid (RBCS)

153-605 mcg/ml RBC

Galactose

Newborn – 0-20 mg/dl, 0-1.11 mmol/L

Thereafter—<5 mg/dl, <0.28 mmol/L

Gamma-Glutamyl Transferase (GGT)

Cord – 19-270 U/L, 19-270 U/L

Premature – 56-223 U/L, 56-233 U/L

0-3wk – 0-130 U/L, 0-130 U/L

3 wk – 3 mo – 4-120 U/L, 4-120 U/L

>3 mo male – 5-65 U/L, 5-65 U/L

>3 mo female – 5-35 U/L, 5-35 U/L

1-15 yr – 0-23 U/L, 0-23 U/L

Adult male – 11-50 U/L, 11-50 U/L

Adult female – 7-32 U/L, 7-32 U/L

Gastrin

<100pg/ml, 100 ng/L

Glucose (Serum)

Premature – 45-100 mg/dl, 1.1-3.6 mmol/L

Full term – 45-120 mg/dl, 1.1-6.4 mmol/L

1 wk-16 yr – 60-105 mg/dl, 3.3-5.8 mmol/L

>16 yr – 70-115 mg/dl, 3.9-6.4 mmol/L

Iron

Newborn – 100-250 mcg/dl, 18-45 mcmol/L

Infant – 40-100 mcg/dl, 7-18 mcmol/L

Child – 50-120 mcg/dl, 9-22 mcmol/L

Adult male – 65-170 mcg/dl, 12-30 mcmol/L

Adult female – 50-170 mcg/dl, 9-30 mcmol/L

Ketones

Qualitative – Negative

Quantitative – 0.5-3.0 mg/dl, 5-30 mg/L

Lactate

Capillary blood

Newborn—<27 mg/dl, 0.0-3.0 mmol/L

Child – 5-20 mg/dl, 0.56-2.25 mmol/L

Venous – 5-20 mg/dl, 0.5-2.2 mmol/L

Arterial – 5-14 mg/dl, 0.5-1.6 mmol/L

Lactate Dehydrogenase (at 37 degrees C)

Neonate – 160-1500 U/L, 160-1500 U/L

Infant – 150-360 U/L, 150-360 U/L

Child – 150-300 U/L, 150-300 U/L

Adult – 0-220 U/L, 0-220 U/L

Lactate Dehydrogenase Isoenzymes (% Total)

LD1 heart – 24%-34%

LD2 heart, erythrocytes – 35%-45%

LD3 muscle – 15%-25%

LD4 liver, trace muscle – 4%-10%

LD5 liver, muscle – 1%-9%

Lead

Child—<10 mcg/dl, <48 mcmol/L

Lipase

4-24 U/dl

Lipids

Cholesterol (mg/dl)

Child/adolescent—<170 desirable, 170-199 borderline, ³ 200 high

Adults—<200 desirable, 200-239 borderline, ³ 240 high

Desirable HDL—<35 mg/dl

LDL (mg/dl)

Child/adolescent—<110 desirable, 110-129 borderline, ³ 130 high

Adults—<130 desirable, 130-159 borderline, ³ 160 high

Magnesium

1.3-2.0 mEq/L, 0.65-1.0 mmol/L

Manganese (Blood)

Newborn – 2.4-9.6 mcg/dl, 2.44-1.75 mcmol/L

2-18 yr – 0.8-2.1 mcg/dl, 0.15-0.38 mcmol/L

Methemoglobin

0-1.3% of total hg

Osmolality

285-295 mOsm/kg, 285-295 mmol/kg

Phenylalanine

Premature – 2.0-7.5 mg/dl, 0.12-0.45 mmol/L

Newborn – 1.2-3.4 mg/dl, 0.07-0.21 mmol/L

Adult – 0.8-1.8 mg/dl, 0.05-0.11 mmol/L

Phosphorous

Newborn – 4.2-9.0 mg/dl, 1.36-2.91 mmol/L

0-15 yr – 3.2-6.3 mg/dl, 1.03-2.1 mmol/L

Adult – 2.7-4.5 mg/dl, 0.87-1.45 mmol/L

Potassium

<10 days of age – 4.0-6.0 mEq/L, 4.0-6.0 mmol/L

>10 days of age – 3.5-5.0 mEq/L, 3.5-5.0 mmol/L

Prealbumin

Newborn-6 wk – 4-36 mg/dl

6 wk-16 yr – 13-27 mg/dl

Adult – 18-45 mg/dl

Proteins (check with your doctor)

Pyruvate

0.3-0.9 mg/dl, 0.03-0.10 mmol/L

Rheumatoid factor

<20

Rheumaton Titer (Modified Waaler-Rose slide test)

<10

Sodium

Premature – 130-140 mEq/L, 130-140 mmol/L

Older – 135-148 mEq/L, 135-148 mmol/L

Transaminase (SGOT)

See AST (aspartate aminotransferase)

Transaminase (SGPT)

See ALT (alanine aminotransferase)

Transferrin

Newborn – 130-275 mg/dl, 1.3-2.75 g/L

Adult – 200-400 mg/dl, 2.0-4.0 g/L

Urea Nitrogen

7-22 mg/dl, 2.5-7.9 mmol/L

Uric Acid

0-2 yr – 2.4-6.4 mg/dl, 0.14-0.38 mmol/L

2-12 yr – 2.4-5.9 mg/dl, 0.14-0.35 mmol/L

12-14 yr – 2.4-6.4 mg/dl, 0.14-0.38 mmol/L

Adult male – 3.5-7.2 mg/dl, 0.20-0.43 mmol/L

Adult female – 2.4-6.4 mg/dl, 0.14-0.38 mmol/L

Vitamin A (Retinol)

Newborn – 35-75 mcg/dl, 1.22-2.62 mcmol/L

Child – 30-80 mcg/dl, 1.05-2.79 mcmol/L

Adult – 30-65 mcg/dl, 1.05-2.27 mcmol/L

Vitamin B1

(Thiamine) – 5.3-7.9 mcg/dl, 0.16-0.23 mcmol/L

Vitamin B2

(Riboflavin) – 3.7-13.7 mcg/dl, 98-363 mcmol/L

Vitamin B12

(Cobalamin) – 130-785 pg/ml, 96-579 pmol/L

Vitamin C

(Ascorbic Acid) – 0.2-2.0 mg/dl, 11.4-113.6 mcmol/L

Vitamin D3

(1,25 Dihydroxy) – 25-45 pg/ml, 60-108 pmol/L

Vitamin E

5-20 mg/dl, 11.6-46.4 mcmol/L

Zinc

70-150 mcg/dl, 10.7-22.9 mcmol/L

 

Important disclaimer: The information on pkids.org is for educational purposes only and should not be considered to be medical advice. It is not meant to replace the advice of the physician who cares for your child. All medical advice and information should be considered to be incomplete without a physical exam, which is not possible without a visit to your doctor.