Blood Tests: Normal Values – Appendixes


Acetoacetate

Plasma




Acetylcholinesterase (ACE), RBC

Blood

26.7–49.2 U/g Hb


Acid phosphatase

Serum

0.5–5.5 U/L

0–0.9 mckat/L


Activated partial thromboplastin time (aPTT)

Plasma

25–36 sec


Adrenocorticotropic hormone (ACTH)

Serum

9–52 pg/mL (morning draw)

2–11 pmol/L (morning draw)


Albumin

Serum

3.5–5.4 g/dL

35–54 g/L


Aldosterone





Serum

7–20 ng/dL

194–554 pmol/L


Serum

2–5 ng/dL

55–138 pmol/L


Alkaline phosphatase (ALP)

Serum

36–150 U/L

0.5–2.5 mckat/L


Alpha-1 antitrypsin (AAT)

Serum

83–199 mg/dL

15.3–36.6 mcmol/L


Alpha fetoprotein (AFP)

Serum

0–20 ng/dL

0–20 pg/L


δ-Aminolevulinic acid (ALA)

Serum

15–23 mcg/L

1.14–1.75 mcmol/L


Aminotransferase, alanine (ALT)

Serum

0–35 U/L

0–0.58 pkat/L


Aminotransferase, aspartate (AST)

Serum

0–35 U/L

0–0.58 pkat/L


Ammonia

Plasma

40–80 mcg/dL

23–47 mcmol/L


Amylase

Serum

0–130 U/L

0–2.17 mckat/L


Antibodies to extractable nuclear antigen (AENA)

Serum



Anti–cyclic citrullinated peptide (anti-CCP) antibodies

Serum

≤ 5.0 units


Antidiuretic hormone (ADH; arginine vasopressin)

Plasma




Anti–double-stranded DNA (dsDNA) antibodies, IgG

Serum



Antimitochondrial M2 antibodies

Serum



Antineutrophil cytoplasmic antibodies (cANCA)

Serum

Negative


Antinuclear antibodies (ANA)

Serum

≤ 1.0 units


Anti–smooth muscle antibodies (ASMA) titer

Serum

≤ 1:80


Antistreptolysin O titer

Serum



Antithyroid microsomal antibody titer

Serum



α1-Antitrypsin (AAT)

Serum

83–199 mg/dL

15.3–36.6 mcmol/L


Apolipoproteins:





Serum

98–210 mg/dL

0.98–2.1 g/L


Serum

88–180 mg/dL

0.88–1.8 g/L


Serum

44–148 mg/dL

0.44–1.48 g/L


Serum

55–151 mg/dL

0.55–1.51 g/L


Bicarbonate

Serum

23–28 mEq/L

23–28 mmol/L


Bilirubin:





Serum

0–0.3 mg/dL

0–5.1 mcmol/L


Serum

0.3–1.2 mg/dL

5.1–20.5 mcmol/L


Blood volumes (radioisotope labeling):





Blood

28–43 mL/kg body wt

0.028–0.043 L/kg body wt


Blood

25–44 mL/kg body wt

0.025–0.044 L/kg body wt


Blood

20–30 mL/kg body wt

0.02–0.03 L/kg body wt


Blood

25–35 mL/kg body wt

0.025–0.035 L/kg body wt


Brain (B-type) natriuretic peptide (BNP)

Plasma



Calcitonin, age ≥ 16 yr:





Serum



Serum



Calcium

Serum

9–10.5 mg/dL

2.2–2.6 mmol/L


Cancer antigen (CA):





Serum



Serum



Carbon dioxide (CO2) content

Serum

23–28 mEq/L

23–28 mmol/L


Carbon dioxide partial pressure (PCO2)

Blood

35–45 mm Hg


Carboxyhemoglobin

Plasma

0.5–5%


Carcinoembryonic antigen (CEA)

Serum




Carotene

Serum

75–300 mcg/L

1.4–5.6 mcmol/L


CD4:CD8 ratio

Blood

1–4


CD4+ T-cell count

Blood

640–1175/mcL

0.64–1.18 x 109/L


CD8+ T-cell count

Blood

335–875/mcL

0.34–0.88 x 109/L


Ceruloplasmin

Serum

25–43 mg/dL

250–430 mg/L


Chloride

Serum

98–106 mEq/L

98–106 mmol/L


Cholesterol, desirable level:






  • High-density lipoprotein (HDL-C)

Plasma

≥ 40 mg/dL

≥ 1.04 mmol/L



  • Low-density lipoprotein (LDL-C)

Plasma

≤ 130 mg/dL

≤ 3.36 mmol/L


Total (TC)

Plasma

150–199 mg/dL

3.88–5.15 mmol/L


Coagulation factors:





Plasma

150–300 mg/dL

1.5–3.5 g/L


Plasma

60–150% of normal


Plasma

60–150% of normal


Plasma

60–150% of normal


Plasma

60–150% of normal


Plasma

60–150% of normal


Plasma

60–150% of normal


Plasma

60–150% of normal


Plasma

60–150% of normal


Complement:





Serum

55–120 mg/dL

0.55–1.20 g/L


Serum

20–59 mg/dL

0.20–0.59 g/L


Total

Serum

37–55 U/mL

37–55 kU/L


Copper

Serum

70–155 mcg/L

11–24.3 mcmol/L


Cortisol:





Serum

> 18 mcg/dL and usually ≥ 8 mcg/dL above baseline

> 498 nmol/L and usually ≥ 221 nmol/L above baseline


Serum

3–13 mcg/dL

83–359 nmol/L


Serum

8–20 mcg/dL

251–552 nmol/L



  • After overnight suppression test

Serum




C-peptide

Serum

0.9–4.3 ng/mL

297–1419 pmol/L


C-reactive protein (CRP)

Serum




C-reactive protein, highly sensitive (hsCRP)

Serum




Creatine kinase (CK)

Serum

30–170 U/L

0.5–2.83 mckat/L


Creatinine

Serum

0.7–1.3 mg/dL

61.9–115 mcmol/L


d-Dimer

Plasma

≤ 300 ng/mL

≤ 300 mcg/L


Dehydroepiandrosterone sulfate (DHEA-S):





Plasma

0.6–3.3 mg/mL

1.6–8.9 mcmol/L


Plasma

1.3–5.5 mg/mL

3.5–14.9 mcmol/L


Delta-aminolevulinic acid (ALA)

Serum

15–23 mcg/L

1.14–1.75 mcmol/L


11-Deoxycortisol (DOC):





Plasma

> 7 mcg/dL

> 203 nmol/L


Plasma




d-Xylose level 2 h after ingestion of 25 g of d-xylose

Serum

> 20 mg/dL

> 1.3 nmol/L


Epinephrine, supine

Plasma




Erythrocyte sedimentation rate (ESR):





Blood

0–20 mm/h

0–20 mm/h


Blood

0–15 mm/h

0–20 mm/h


Erythropoietin

Serum

4.0–18.5 mIU/mL

4.0–18.5 IU/L


Estradiol, females:






  • Day 1–10 of menstrual cycle

Serum

14–27 pg/mL

50–100 pmol/L



  • Day 11–20 of menstrual cycle

Serum

14–54 pg/mL

50–200 pmol/L



  • Day 21–30 of menstrual cycle

Serum

19–40 pg/mL

70–150 pmol/L


Estradiol, males

Serum

10–30 pg/mL

37–110 pmol/L


Ferritin:





Serum

30–200 ng/mL

30–200 mcg/L


Serum

30–300 ng/mL

30–300 mcg/L


α-Fetoprotein (AFP)

Serum

0–20 ng/dL

0–20 pg/L


Fibrinogen

Plasma

150–350 mg/dL

1.5–3.5 g/L


Folate (folic acid):





Blood

160–855 ng/mL

362–1937 nmol/L


Serum

2.5–20 ng/mL

5.7–45.3 nmol/L


Follicle-stimulating hormone (FSH), females:






  • Follicular or luteal phase

Serum

5–20 mU/mL

5–20 U/L


Serum

30–50 mU/mL

30–50 U/L


Serum

> 35 mU/mL

> 35 U/L


Follicle-stimulating hormone (FSH), adult males

Serum

5–15 mU/mL

5–15 U/L


Fructosamine

Plasma

200–285 mol/L


Gamma-glutamyl transpeptidase (GGT)

Serum

8–78 U/L


Gastrin

Serum

0–180 pg/mL

0–180 ng/L


Globulins:

Serum

2.5–3.5 g/dL

25–35 g/L


Serum

0.2–0.4 g/dL

2–4 g/L


Serum

0.5–0.9 g/dL

5–9 g/L


Serum

0.6–1.1 g/dL

6–11 g/L


Serum

0.7–1.8 mcg/mL


Serum

0.7–1.7 g/dL

7–17 g/L


Glucose:





Plasma




Plasma

70–105 mg/dL

3.9–5.8 mmol/L


Glucose-6-phosphate dehydrogenase (G6PD)

Blood

5–15 U/g Hb

0.32–0.97 mU/ mol Hb


γ-Glutamyl transpeptidase (GGT)

Serum

8–78 U/L


Growth hormone:





Plasma





  • In response to provocative stimuli

Plasma

> 7 ng/mL

> 7 mcg/L


Haptoglobin

Serum

30–200 mg/dL

300–2000 mg/L


Hematocrit:





Blood

36–47%


Blood

41–51%


Hemoglobin:





Blood

12–16 g/dL

120–160 g/L


Blood

14–17 g/dL

140–170 g/L


Hemoglobin A1c

Blood

4.7–8.5%


Hemoglobin electrophoresis, adults:





Blood

95–98%


Blood

2–3%


Blood

0%


Blood

0.8–2.0%


Blood

0%


Hemoglobin electrophoresis, Hb F in children:





Blood

50–80%


Blood

8%


Blood

1–2%


Homocysteine:





Plasma

0.40–1.89 mg/L

3–14 mcmol/L


Plasma

0.54–2.16 mg/L

4–16 mcmol/L


Human chorionic gonadotropin (hCG), quantitative

Serum



Immunoglobulins:





Serum

70–300 mg/dL

0.7–3.0 g/L


Serum




Serum

0.01–0.04 mg/dL

0.1–0.4 mg/L


Serum

640–1430 mg/dL

6.4–14.3 g/L


Serum

280–1020 mg/dL

2.8–10.2 g/L


Serum

60–790 mg/dL

0.6–7.9 g/L


Serum

14–240 mg/dL

0.14–2.4 g/L


Serum

11–330 mg/dL

0.11–3.3 g/L


Serum

20–140 mg/dL

0.2–1.4 g/L


Insulin, fasting

Serum

1.4–14 mcIU/mL

10–104 pmol/L


International normalized ratio (INR):






  • Therapeutic range (standard intensity therapy)

Plasma

2.0–3.0



  • Therapeutic range in patients at higher risk (eg, patients with prosthetic heart valves)

Plasma

2.5–3.5



  • Therapeutic range in patients with lupus anticoagulant

Plasma

3.0–3.5


Iron

Serum

60–160 mcg/dL

11–29 mcmol/L


Iron-binding capacity, total (TIBC)

Serum

250–460 mcg/dL

45–82 mcmol/L


Lactate dehydrogenase (LDH)

Serum

60–160 U/L

1–1.67 mckat/L


Lactic acid, venous

Blood

6–16 mg/dL

0.67–1.8 mmol/L


Lactose tolerance test

Plasma

> 15 mg/dL increase in plasma glucose level

> 0.83 mmol/L increase in plasma glucose level


Lead

Blood




Leukocyte alkaline phosphatase (LAP) score

Peripheral blood smear

13–130/100/ polymorphonuclear (PMN) leukocyte neutrophils and bands


Lipase

Serum




Lipoprotein (a) [Lp(a)]

Serum

≤ 30 mg/dL



Luteinizing hormone (LH), females:






  • Follicular or luteal phase

Serum

5–22 mU/mL

5–22 U/L


Serum

30–250 mU/mL

30–250 U/L


Serum

> 30 mU/mL

> 30 U/L


Luteinizing hormone, males

Serum

3–15 mU/mL

3–15 U/L


Magnesium

Serum

1.5–2.4 mg/dL

0.62–0.99 mmol/L


Manganese

Serum

0.3–0.9 ng/mL

5.5–16.4 nmol/L


Mean corpuscular hemoglobin (MCH)

Blood

28–32 pg


Mean corpuscular hemoglobin concentration (MCHC)

Blood

32–36 g/dL

320–360 g/L


Mean corpuscular volume (MCV)

Blood

80–100 fL


Metanephrines, fractionated:





Plasma



Plasma



Methemoglobin

Blood



Methylmalonic acid (MMA)

Serum

150–370 nmol/L


Myeloperoxidase (MPO) antibodies

Serum



Myoglobin:





Serum

25–58 mcg/L

1.4–3.5 nmol/L


Serum

28–72 mcg/L

1.6–4.1 nmol/L


Norepinephrine, supine

Plasma

50–440 pg/mL

0.3–2.6 nmol/L


N-Terminal propeptide of BNP (NT-proBNP)

Plasma



5′-Nucleotidase (5’NT)

Serum

4–11.5 U/L


Osmolality

Plasma

275–295 mOsm/kg H2O

275–295 mmol/ kg H2O


Osmotic fragility test

Blood

Increased fragility if hemolysis occurs in > 0.5% sodium chloride


Decreased fragility if hemolysis is incomplete in 0.3% sodium chloride


Oxygen partial pressure (PO2)

Blood

80–100 mm Hg


Parathyroid hormone (PTH)

Serum

10–65 pg/mL

10–65 ng/L


Parathyroid hormone–related peptide (PTHrP)

Plasma



Partial thromboplastin time, activated (aPTT)

Plasma

25–35 sec


pH

Blood

7.38–7.44


Phosphorus, inorganic

Serum

3.0–4.5 mg/dL

0.97–1.45 mmol/L


Platelet count

Blood

150–350 x 103/mcL

150–350 x 109/L


Platelet life span, using chromium-51 (51Cr)

8–12 days


Porphyrins

Plasma

≤ 1.0 mcg/dL


Potassium

Serum

3.5–5 mEq/L

3.5–5 mmol/L


Prealbumin (transthyretin)

Serum

18–45 mg/dL


Progesterone:





Serum




Serum

3–30 ng/mL

0.1–0.95 nmol/L


Prolactin:





Serum




Serum




Prostate-specific antigen, total (PSA-T)

Serum

0–4 ng/mL


Prostate-specific antigen, ratio of free to total (PSA-F:PSA-T)

Serum

> 0.25


Protein C activity

Plasma

67–131%


Protein C resistance, activated ratio (APC-R)

Plasma

2.2–2.6


Protein S activity

Plasma

82–144%


Protein, total

Serum

6–7.8 g/dL

60–78 g/L


Prothrombin time (PT)

Plasma

11–13 sec


Pyruvic acid

Blood

0.08–0.16 mmol/L


RBC count

Blood

4.2–5.9 x 106 cells/mcL

4.2–5.9 x 1012 cells/L


RBC survival rate, using 51Cr

Blood

T1/2 = 28 days


Renin activity, plasma (PRA), upright, in males and females aged 18–39 yr:





Plasma

2.9–24 ng/mL/h


Plasma

0.6 (or lower)–4.3 ng/mL/h


Reticulocyte count:





Blood

0.5–1.5%


Blood

23–90 x 103/mcL

23–90 x 109/L


Rheumatoid factor (RF), by nephelometry

Serum




Sodium

Serum

136–145 mEq/L

136–145 mmol/L


Testosterone (total), adults:





Serum

20–75 ng/dL

0.7–2.6 nmol/L


Serum

300–1200 ng/dL

10–42 nmol/L


Thrombin time

Plasma

18.5–24 sec


Thyroid iodine-123 (123I) uptake

5–30% of administered dose at 24 h


Thyroid-stimulating hormone (TSH)

Serum

0.5–5.0 mcIU/mL

0.5–5.0 mIU/L


Thyroxine (T4):





Serum

0.9–2.4 ng/dL

12–31 pmol/L


4–11


Serum

5–12 mcg/dL

64–155 nmol/L


Transferrin

Serum

212–360 mg/dL

2.1–3.6 g/L


Transferrin saturation

Serum

20–50%


Triglycerides (fasting)

Serum




Triiodothyronine (T3):





Serum

25–35%


Serum

70–195 ng/dL

1.1–3.0 nmol/L


Troponin I

Plasma




Troponin T

Serum

≤ 0.03 ng/mL

≤ 0.03 mcg/L


Urea nitrogen (BUN)

Serum

8–20 mg/dL

2.9–7.1 mmol/L


Uric acid

Serum

2.5–8 mg/dL

0.15–0.47 mmol/L


Vitamin B12

Serum

200–800 pg/mL

148–590 pmol/L


Vitamin C (ascorbic acid):





Blood




Blood

0.4–1.5 mg/dL

23–85 mcmol/L


Vitamin D:






  • 1,25-Dihydroxycholecalciferol (calcitriol)

Serum

25–65 pg/mL

65–169 pmol/L



  • 25-Hydroxycholecalciferol

Serum

15–80 ng/mL

37–200 nmol/L


WBC count

Blood

4.5–11 x 103 cells/mcL

4.5–11 x 109 cells/L


Segmented neutrophils


2.6–8.5 x 103 cells/mcL

2.6–8.5 x 109 cells/L


Band neutrophils


0–1.2 x 103 cells/mcL

0–1.2 x 109 cells/L


Lymphocytes


0.77–4.5 x 103 cells/mcL

0.77–4.5 x 109 cells/L


Monocytes


0.14–1.3 x 103 cells/mcL

0.14–1.3 x 109 cells/L


Eosinophils


0–0.55 x 103 cells/mcL

0–0.55 x 109 cells/L


Basophils


0–0.22 x 103 cells/mcL

0–0.22 x 109 cells/L


Zinc

Serum

66–110 mcg/dL

10.1–16.8 mcmol/L


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