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Reference values 

Reference values
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Subscriber: null; date: 21 October 2017

Please note that the values and ranges vary among laboratories. Conventional units are used in some medical/scientific journals, and laboratories in some countries. Therefore both SI and conventional units are given.

Measurement

SI unit

Conventional unit

Conversion factor CF x C = SI

  • 5- Hydroxyindole Acetic

  • Acid (5-HIAA), urine

9.4–31.4μmol/day

1.8–6.0 mg/day

5.230

  • Alanine aminotransferase

  • (ALT)

0–41 U/L

0–41 U/L

Albumin

35–50 g/L

3.5–5.0 g/dL

10

Alpha-fetoprotein

0–15 micrograms/L

0–15 ng/mL

1.0

  • Aspartate aminotransferase

  • (AST)

10–40 U/L

10–40 U/L

  • Adrenocorticotrophin

  • 8 a.m.

  • 4 p.m.

  • 2–11.5 pmol/L

  • 1.1–8.2 pmol/L

  • 9–52 pg/mL

  • 5–37 pg/mL

0.2202

  • Aldosterone, serum

  • Supine

  • Upright

  • 50–250 pmol/L

  • 80–970 pmol/L

  • 2–9 ng/dL

  • 3–35 ng/dL

27.74

Alkaline phosphatase

40–129 U/L

40–129 U/L

Amylase

0.33–1.83 nkat/L

20–110 U/L

0.0167

Bicarbonate

22–30 mmol/L

22–30 mEq/L

1.0

Bilirubin, total

<17.1 µmol/L

<1.0 mg/dL

17.1

Calcitonin

<2.9 pmol/L

<10 pg/mL

0.29

Calcium, serum

2.23–2.63 mmol/L

8.9–10.5 mg/dL

0.2495

Ceruloplasmin

250–650 mg/L

25–65 mg/dL

10

Chloride

98–108 mmol/L

98–108 mEq/L

1.0

Cholesterol, total desirable

<5.2 mmol/L

< 200 mg/dL

0.02586

  • Chorionic Gonadotrophin, human

  • Non-pregnant

  • Pregnant

  • <5 IU/L

  • <100,000 IU/L

  • <5 mIU/mL

  • <100,000 mIU/mL

1.0

  • Copper

  • Serum

  • Urine

  • 11–24 µmol/L

  • <0.94 µmol/day

  • 70–155 micrograms/dL

  • <60 micrograms/day

  • 0.157

  • 0.0157

  • Cortisol, serum

  • a.m.

  • 4 p.m

  • 140–700 nmol/L

  • 96–280 nmol/L

  • 5–25 micrograms/dL

  • 4–10 micrograms/dL

27.59

Cortisol, urine free

28–250 nmol/day

10–90 micrograms/day

2.8

C-peptide, serum

0.1–1.23 nmol/L

0.3–3.7 micrograms/L

0.331

Creatinine

62-106 µmol/L

0.70–1.20 mg/dL

88.40

Creatinine phosphokinase

25–145 U/L

25–145 mU/mL

1.0

  • Estradiol

  • Male & postmenopausal F

  • Menstruating F

  • 37–220 pmol/L

  • <1.45 nmol/L

  • 10–60 ng/L

  • <400 ng/L

  • 3.671

  • 0.0037

Ferritin

20–300 micrograms/L

20–300 ng/mL

1.0

  • Folate,

  • Serum

  • Red blood cell

  • 6.4–49.5 nmol/L

  • 272–1530 nmol/L

  • 2.8–21.8 ng/mL

  • 120–674 ng/mL

2.27

  • Follicle stimulating hormone

  • Male

  • Female

  • Postmenopausal F

  • 0.6–8.6 IU/L

  • 4–13 IU/L

  • 20–138 IU/L

  • 0.6–8.6 mIU/mL

  • 4–13 mIU/mL

  • 20–138 mIU/mL

1.0

  • Gamma GT

  • Male

  • Female

  • 11–51 IU/L

  • 7–33 IU/L

  • 11–51 IU/L

  • 7–33 IU/L

_

Glucose, fasting

3.5–5.5 mmol/L

64–100 mg/dL

0.055

Growth hormone, adult

0–10 micrograms/L

0–10 ng/mL

1.0

Homocysteine

2.8–18.5 µmol/L

2.8–18.5 µmol/L

1.0

IGF-1

123–463 micrograms/ L (age related)

123–463 ng/mL (age related)

1.0

Insulin, fasting

35–145 pmol/L

5–20 µU/mL

7.175

Iron

7.9–28.6 µmol/L

44–160 micrograms/dL

0.18

Iron-Binding Capacity

44.8–71.6 µmol/L

250–400 micrograms/ dL

0.18

Lactic acid (lactate)

0.5–2.2 mmol/L

4.5–19.8 mg/mL

0.11

LDH

118–273 IU/L

118–273 IU/L

  • Luteinizing hormone

  • Male

  • Female

  • Postmenopausal F

  • 0.5–11.2 IU/L

  • 1–18 IU/L

  • 15–62 IU/L

  • 0.5–11.2mIU/mL

  • 1–18 mIU/mL

  • 15–62 mIU/mL

1.0

Magnesium

0.8–1.3 mmol/L

1.8–3.0 mg/dL

0.4114

Osmolality, serum

285–295 mmol/kg

285–295 mOsm/kg

1.0

Parathyroid hormone

10–65 ng/L

10–65 pg/mL

1.0

Potassium

3.5–5.0 mmol/L

3.5–5.0 mEq/L

1.0

Phosphate

0.84–1.45 mmol/L

2.6–4.5 mg/dL

0.3229

  • Progesterone

  • Male

  • Female, follicular

  • Female, luteal

  • Postmenopausal F

  • 0–1.2 nmol/L

  • <4.8 nmol/L

  • 18.1–89.4 nmol/L

  • <0.6 nmol/L

  • 0–0.4 ng/mL

  • <1.5 ng/mL

  • 5.7–28.1 ng/mL

  • <0.2 ng/mL

3.180

Prolactin

4–30 micrograms/L

4–30 ng/mL

1.0

Prostate-specific antigen

<4 micrograms/L

<4 ng/mL

1.0

Protein, total

60–85 g/L

6.0–8.5 g/dL

10

  • Renin, normal sodium

  • Supine

  • Upright

  • 0.1–0.4 ng/L/sec

  • 0.5–1.0 ng/L/sec

  • 0.5–1.6 ng/mL/hr

  • 1.9–3.6 ng/mL/hr

0.278

Sodium

135–145 mmol/L

135–145 mEq/L

1.0

  • Testosterone, total

  • Male

  • Female

  • 10.4–34.7 nmol/L

  • 0.52–2.08 nmol/L

  • 350–1000 ng/dL

  • 15–60 ng/dL

0.035

Thyroid-stimulating hormone

0.49–4.67 uIU/mL

0.49–4.67 µU/mL

1.0

  • Thyroxine, T4

  • Free

  • Total

  • 9.14–23.81 pmol/L

  • 64.3–167 nmol/L

  • 0.71–1.85 ng/dL

  • 5–13 micrograms/dL

12.87

Triglycerides

< 2.26 mmol/L

< 200 mg/dL

0.0113

Troponin-T, Normal

< 0.2 micrograms/L

< 0.2 ng/mL

Troponin I, Normal

< 0.4 micrograms/L

< 0.4 ng/mL

  • Tri-iodotyronine, T3

  • Total

  • Free

  • 1.23–3.39 nmol/L

  • 2.23–5.35 pmol/L

  • 80–220 ng/dL

  • 144–347 pg/dL

  • 0.0154

  • 0.0154

Urea

2.8–6.4 mmol/L

8–18 mg/dL

0.3570

  • Uric acid

  • Male

  • Female

  • <420 µmol/L

  • <340 µmol/L

  • <7.1 mg/dL

  • <5.7 mg/dL

59.48

Vitamin B12

147–590 pmol/L

200–800 pg/mL

0.7378

Vanillylmandelic Acid (VMA), urine

5–44 µmol/24 hr

1–8 mg/24 hr

5.05