Common Blood Test Data


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Values presented represent expected normal data

At the end is an alphabetical listing of numerous clinical values


Blood Gases
  Arterial Venous
pH 7.35–7.45 7.32–7.42
pCO2 35–45 38–52
pO2 70–100 28–48
HCO3– 19–25 19–25
O2 Sat % 90–95 40–70

CBC: Complete blood count, Adults
  Male Female
Hemoglobin (g/dl) 13.5–16.5 12.0–15.0
Hematocrit (%) 41–50 36–44
RBC's ( x 106 /ml) 4.5–5.5 4.0–4.9
RDW (RBC distribution width) 11.5%–14.6%
MCV: mean corpuscular volume 82–98 femtoliters (fl)
MCH: mean corpuscular hemoglobin 26–34 picograms (pg)
MCHC%: mean corpuscular hemoglobin content 31–38 gm/dL or 31%–38%
Platelet count 100,000 to 450,000

WBC: White blood cell differential
WBC total: adults and children >2 years 4,500–10,000 or 4.5–10 x 109/liter (SI units)
WBC total: children <2 years 6,200–17,000 or 6.2–17 x 109/liter (SI units)
WBC total: neonates 9,00–30,000 or 9–30 x 109/liter (SI units)
Neutrophils 55%–70% 2500–8000 per ml
Band neutrophils (immature or stab neutrophils) 0%–3% 0–400 per ml
Lymphocytes 20%–40 1000–4000 per ml
Monocytes 2%–8% 100–700 per ml
Eosinophils 1%–4% 50–500 per ml
Basophils (also called mast cells) 0.1%–1% 25–100 per ml

Red blood cell (RBC) count
Men 4.7–6.1 x 106 RBCs per microliter (mcL, µL) or 4.7–6.1 x 1012/liter (L) (2nd value is in SI units)
Women 4.2–5.4 x 106 RBCs/µL or 4.2–5.4 x 1012/L
Children 4.0–5.5 x 106 RBCs/µL or 4.6–4.8 x 1012/L
Newborn 4.8–7.1 x 106 RBCs/µL or 4.8–7.1 x 1012/L

Platelet (thrombocyte) count
Children 150,000–450,000 platelets per mm3 or 150–450 x 109/L (SI units)
Adults 150,000–400,000 platelets per mm3 or 150–400 x 109/L (SI units)

Mean platelet volume (MPV)
Children 7.4–10.4 mcm3 or 7.4–10.4 fL
Adults 7.4–10.4 mcm3 or 7.4–10.4 fL

Blood coagulation time
partial thromboplastin time (PTT) 60–70 seconds
activated partial thromboplastin time (aPTT) 30–40 seconds
prothrombin time (PT) 11.0–12.5 seconds; 85%–100%

Hematocrit (HCT)
Men 42%–52% or 0.42–0.52 volume fraction (SI units)
Women 37%–47% or 0.37–0.47 volume fraction
Pregnant women 1st trimester: 35%–46%
2nd trimester: 30%–42%
3rd trimester: 34%–44%
Postpartum: 30%–44%
Children 32%–44%
Newborns 44%–64%

Hemoglobin (Hgb)

in general, a normal hemoglobin level is about one-third the value of the hematocrit
Men 14–18 grams per deciliter (g/dL) or 8.7–11.2 millimoles per liter (mmol/L) (SI units)
Women 12–16 g/dL or 7.4–9.9 mmol/L
Pregnant women 1st trimester: 11.4–15.0 g/dL or 7.1–9.3 mmol/L
2nd trimester: 10.0–14.3 g/dL or 6.2–8.9 mmol/L
3rd trimester: 10.2–14.4 g/dL or 6.3–8.9 mmol/L
Postpartum: 10.4–18.0 g/dL or 6.4–9.3 mmol/L
Children 9.5–15.5 g/dL
Newborn 14–24 g/dL

Electrolytes and blood chemistry
BUN: blood urea nitrogen 7–20 mg/dL or 3.6–7.1mM (mmol/L)
Calcium 8.8–10.3 mg/dL
Calcium, ionized 2.2–2.6mM
Chloride 95–107mM
Magnesium 1.6–2.4mM
Phosphate 2.5–4.5 mg/dL or 1.0–1.4mM
Potassium 3.5–5.2mM
Sodium 135–147mM
Ferritin  (ng/ml) 13–300
Folate  (ng/dl) 3.6–20
Glucose, fasting  (mg/dl) 60–110
Glucose (2 hours postprandial)  (mg/dl) Up to 140
Hemoglobin A1c 6–8
Iron  (mcg/dl) 65–150
Lactic acid  (meq/L) 0.7–2.1
LDH (lactic dehydrogenase)  56–194 IU/L
Osmolality 289–308 mOsm/kg
SGOT (AST) < 35 IU/L  (20–48)
SGPT (ALT) <35 IU/L
Total iron binding capacity (TIBC) 250–420  mcg/dl
Transferrin > 200 mg/dl
Uric acid    (male) 2.0–8.0 mg/dl
Uric acid    (female) 2.0–7.5 mg/dl

Creatinine kinase (CK) isoenzymes
CK-BB 0%
CK-MB (cardiac) 0%–3.9%
CK-MM 96%–100%
creatine phosphokinase (CPK) 8–150 IU/L
creatinine (mg/dl) 0.5–1.4 or <133mM (mmol/L)

Serum Protein
Total protein 6–8.5g/dL
Albumin 3.2–5g/dL
Globulin 2.2–4.2g/dL
Albumin/Globulin ratio 1.1–2.4 (calculated)

Thyroid Function tests
Free T3 2.3–4.2 pg/ml
Serum T3 70–200 ng/dl
Free T4 0.5–2.1 ng/dl
Serum T4 4.0–12.0 mcg/dl
TSH 0.25–4.30 microunits/ml


ABCDE FGHIJ KLMNO P
QRSTU VWXYZ

Blood Test Specimen Conventional Units SI Units
1-10
1,25-dihydroxyvitamin D [1,25(OH)2D] Plasma 16–65 pg/mL 40–160 pmol/L
11-deoxycortisol (compound S) Plasma <1 mg/dL <30 nmol/L
17-hydroxyprogesterone; men Plasma 0.06–3.0 mg/L 0.2–9.0 nmol/L
17-hydroxyprogesterone; women follicular phase Plasma 0.2–1.0 mg/L 0.6–3 nmol/L
17-hydroxyprogesterone; women luteal phase Plasma 0.5–3.5 mg/L 1.5–10.6 nmol/L
25-hydroxyvitamin D [25(OH)D] Plasma 8–80 ng/mL 20–200 nmol/L
A    top
Acetoacetate Plasma <3 mg/dL <0.3 mmol/L
Adrenocorticotropin (ACTH), 8am Plasma 9–52 pg/mL 7–27–27 pmol/L
Alanine Aminotransferase (ALT, SGPT) Serum 0–35 U/L 0–0.58 mkat/L
Albumin Serum 3.5–5.5 g/dL 35–55 g/L
Aldolase Serum <8.1 U/L <135 nkat/L
Aldosterone Urine  5–19 mg/d 14–53 nmol/d
Aldosterone, 8am, (patient supine, 100 mmol/L Na+ and 60–100 mmol/L K+ intake) Plasma <8 ng/dL <220 pmol/L
Alpha fetoprotein (adult): α-fetoprotein Serum <30 ng/mL <30 mg/L
Alpha1 antitrypsin (α1-antitrypsin) Serum 85–213 mg/dL 0.8–2.1 g/L
Ammonia, as NH3 Serum 10–80 mg/dL 0–47 mmol/L
Amylase Serum 60–150 U/L 0.8–3.2 mkat/L
Androstenedione; men Plasma 0.8–1.3 ng/mL 3.0–5.0 nmol/L
Androstenedione; women Plasma 1–2 ng/mL 3.5–7.0 nmol/L
Angiotensin II, 8am Plasma 10–30 pg/mL 10–30 nmol/L
Angiotensin-converting enzyme (ACE) Serum <40 U/L <670 nkat/L
Antinuclear antibody agglutination Serum <1:80 titer <1:80 titer
Arginine vasopressin (AVP), random fluid intake Plasma 1.5–6.0 ng/L 1.4–5.6 pmol/L
Arterial blood gas [HCO3–] Arterial Blood 21–30 meq/L 21–28 mmol/L
Arterial blood gas PCO2 Arterial Blood 35–45 mmHg 4.7–5.9 kPa
Arterial blood gas pH Arterial Blood   7.38–7.44
Arterial blood gas PO2 Arterial Blood 80–100 mmHg 11–13 kPa
Ascorbic acid (Vitamin C) Serum 0.4–1.0 mg/dL 23–57 mmol/L
Aspartate Aminotransferase (AST, SGOT) Serum 0–35 U/L 0–0.58 mkat/L
AVP (Arginine vasopressin), random fluid intake Plasma 1.5–6.0 ng/L 1.4–5.6 pmol/L
B    top
Bands Blood 0–4% 0–0.04
Basophils (BASO) Blood 0–2% 0–0.02
Beta-Hydroxybutyrate: β-hydroxybutyrate Plasma <3 mg/dL <300 mmol/L
Bilirubin, Direct Serum 0.1–0.3 mg/dL 1.7–5.1 mmol/L
Bilirubin, Indirect Serum 0.2–0.7 mg/dL 3.4–12 mmol/L
Bilirubin, total Serum 0.3–1.0 mg/dL 5.1–17 mmol/L
Bleeding time (Simplate) Blood <7 min <7 min
Blood urea nitrogen (BUN) Serum 10–20 mg/dL 3.6–7.1 mmol/L
C    top
Calcitonin Men Plasma <13.8 pg/mL <13.8 ng/L
Calcitonin Women Plasma <6.4 pg/mL <6.4 ng/L
Calcium Serum 9–10.5 mg/dL 2.25–2.62 mmol/L
Calcium, ionized Blood 4.5–5.6 mg/dL 1.1–1.4 mmol/L
Carbon dioxide content Serum 23–28 meq/L 23–28 mmol/L
Carbon dioxide tension (PCO2) Arterial blood (sea level) 35–45 mmHg 4.7–5.9 kPa
Carboxyhemoglobin non-smoker Blood 0–2.3% 0–0.023
Carboxyhemoglobin smoker Blood 2.1–4.2% 0.021–0.042
Carotene Serum 75–300 mg/dL 1.4–5.6 mmol/L
Carotenoids Serum 50–300 mg/dL 0.9–5.6 mmol/L
Ceruloplasmin Serum 27–37 ng/dL 270–370 mg/L
Chloride Serum 98–106 meq/L 98–106 mmol/L
Cholesterol (see Table in Lipoproteins page)
Chorionic gonadotropin, Beta-subunit (B-hCG), men and nonpregnant women Plasma <3 mIU/mL <3 IU/L
Copper Serum 70–155 mg/dL 11–24 mmol/L
Cortisol  am Plasma 5–25 mg/dL 140–690 nmol/L
Cortisol pm Plasma 3–12 mg/dL 80–330 nmol/L
Cortisol Urinary Free Urine 10–50 mg/d 25–140 nmol/d
Creatine kinase-MB Serum < 3% of total <0.03 of total
Creatinine Serum <1.5 mg/dL <133 mmol/L
Creatinine kinase (CK); females Serum <190 U/L <3.17 mkat/L
Creatinine kinase (CK); males Serum <235 U/L <3.92 mkat/L
D    top
Dehydroepiandrosterone (DHEA) Plasma 2–9 ng/dL 7–31 nmol/L
Delta-aminolevulinic acid Serum <20 mg/dL <1.5 mmol/L
DHEA (Dehydroepiandrosterone) Plasma 2–9 ng/dL 7–31 nmol/L
DHEA sulfate Plasma 500–2500 mg/dL 1.3–6.8 mmol/L
E    top
EOS (eosinophils) Blood 0–7% 0–0.07
Eosinophils (EOS) Blood 0–7% 0–0.07
Erythrocyte count Blood 4.15–4.90 × 106/mm3 4.15–4.90 × 1012/L
Erythropoietin Serum   5–36 U/L
Estradiol; men Plasma <50 pg/mL <180 pmol/L
Estradiol; women (higher at ovulation) Plasma 20–60 pg/mL 70–220 pmol/L
Ethanol Blood <0.005% <0.005%
Euglobulin lysis time Blood >2 h >2 h
F    top
Fatty acids, free (nonesterified) Plasma <18 mg/dL 180 mg/L
Ferritin; men Serum 15–400 ng/mL 15–400 mg/L
Ferritin; women Serum 10–200 ng/mL 10–200 mg/L
Fibrinogen Plasma 150–400 mg/dL 1.5–4 g/L
Folate Serum 2.5–20 ng/mL >4.3 nmol/L
Folate, red cell Red blood cells 160–855 ng/mL  >95 nmol/L
Folic acid Red cell 150–450 ng/mL cells 340–1020 nmol/L cells
Folic acid Serum 3–16 ng/mL cells 7–36 nmol/L cells
Follicle-stimulating hormone (FSH); men Plasma 0.9–15 mIU/mL 0.9–15 IU/L
Follicle-stimulating hormone (FSH); postmenopausal women Plasma 34–96 mIU/mL 34–96 IU/L
Follicle-stimulating hormone (FSH); women ovulatory surge Plasma 2.3–21 mIU/mL 2.3–21 IU/L
Follicle-stimulating hormone (FSH); women mature, premenopausal, except at ovulation Plasma 1.4–9.6 mIU/mL 1.4–9.6 IU/L
FSH (Follicle-stimulating hormone) Plasma 0.9–15 mIU/mL 0.9–15 IU/L
G    top
Gastrin Serum 40–180 pg/mL 40–180 ng/L
Glucagon Plasma 50–100 pg/mL 50–100 ng/L
Glucose fasting (diabetes mellitus) Plasma >140 mg/dL >7.8 mmol/L
Glucose fasting (normal) Plasma 75–115 mg/dL 4.2–6.4 mmol/L
Glucose: 2 hour post prandial  (impaired glucose tolerance) Plasma 140–200 mg/dL 7.8–11.1 mmol/L
Glucose: 2 hour post prandial (normal) Plasma <140 mg/dL <7.8 mmol/L
Glucose: 2 hour postprandial  (diabetes mellitus) Plasma >200 mg/dL >11.1 mmol/L
Glucose-6-phosphate dehydrogenase Blood 12.1 ± 2 IU/g Hb 0.78 ± 0.13 MU/mol Hb
Growth hormone, after 100 g oral glucose Serum <2 ng/mL <2 mg/L
H    top
Ham's test (acid serum) Blood Negative Negative
Haptoglobin (serum) Blood 50–220 mg/dL 0.5–2.2 g/L
HbF (Hemoglobin, fetal) Blood <2% <0.02
HCT; females (hematocrit) Blood 37–48% 0.37–0.48
HCT; males (Hematocrit) Blood 42–52% 0.42–0.52
Hematocrit (HCT); females Blood 37–48% 0.37–0.48
Hematocrit (HCT); males Blood 42–52% 0.42–0.52
Hemoglobin A1c Whole Blood 3.8–6.4% 0.038–0.064
Hemoglobin A2 (HbA2) Blood 1.5–3.5% 0.015–0.035
Hemoglobin; female Blood 12–16 g/dL 120–160 g/L
Hemoglobin; male Blood 14–18 g/dL 140–180 g/L
Hemoglobin; whole blood females Blood 12–16 g/dL 7.4–9.9 mmol/L
Hemoglobin; whole blood males Blood 13–18 g/dL 8.1–11.2 mmol/L
Hemoglobin; fetal (HbF) Blood <2% <0.02
I    top
Insulin, fasting Serum or Plasma 6–26 mU/mL 43–186 pmol/L
Iron Serum 60–150 mg/dL 11–29 mmol/L
Iron Saturation Serum 20–45% 0.2–0.45
Iron-binding capacity Serum 250–370 mg/dL 45–66 mmol/L
L    top
Lactate (Lactic acid) Plasma 6–16 mg/dL 0.67–1.8 mmol/L
Lactate dehydrogenase (LDH) Serum 100–190 U/L 1.7–3.2 mkat/L
Lactate dehydrogenase isoenzymes Fraction 1 (of total) Serum 14–26% 0.14–0.25
Lactate dehydrogenase isoenzymes Fraction 2 (of total) Serum 29–39% 0.29–0.39
Lactate dehydrogenase isoenzymes Fraction 3 (of total) Serum 20–26% 0.20–0.25
Lactate dehydrogenase isoenzymes Fraction 4 (of total) Serum 8–16% 0.08–0.16
Lactate dehydrogenase isoenzymes Fraction 5 (of total) Serum 6–16% 0.06–0.16
LAP (leukocyte alkaline phosphatase) Blood 13–100 m/L 0.2–1.6 mkat/L
LDH (Lactate dehydrogenase) Serum 100–190 U/L 1.7–3.2 mkat/L
Lead Serum <40 mg/dL <1.9 mmol/L
Leukocyte Alkaline phosphatase (LAP) Blood 13–100 m/L 0.2–1.6 mkat/L
Leukocyte Count (WBC, white blood cell count) Blood 4.3–10.8 × 103/mm3 4.3–10.8 × 109/L
Lipase Serum 0–160 U/L 0–2.66 mkat/L
Lipoprotein (a) Serum 0–3 mg/dL 0–300 mg/L
Lutenizing hormone; men Serum 1.3–13 mIU/mL 1.3–13 IU/L
Lutenizing hormone; women mature, premenopausal, except at ovulation Serum 0.8–26 mIU/mL 0.8–26 IU/L
Lutenizing hormone; women ovulatory surge Serum 25–57 mIU/mL 25–57 IU/L
Lutenizing hormone; women postmenopausal Serum 40–104 mIU/mL 40–104 IU/L
Lymphocytes (Lymphs) Blood 16–45% 0.16–0.45
Lymphs (lymphocyes) Blood 16–45% 0.16–0.45
M    top
Magnesium Serum 1.8–3 mg/dL 0.8–1.2 mmol/L
MCH (mean corpuscular hemoglobin) Blood 28–33 pg/cell 28–33 pg/cell
MCHC (mean corpuscular hemoglobin concentration) Blood 32–36 g/dL 320–360 g/L
MCV (mean corpuscular volume) Blood 86–98 mm3 86–98 fl
Mean corpuscular hemoglobin (MCH) Blood 28–33 pg/cell 28–33 pg/cell
Mean corpuscular hemoglobin concentration (MCHC) Blood 32–36 g/dL 320–360 g/L
Mean corpuscular volume (MCV) Blood 86–98 mm3 86–98 fl
Mono (monocytes) Blood 4–10% 0.04–0.10
Monocytes (Mono) Blood 4–10% 0.04–0.10
Myoglobin  Serum <55 ng/L <55 mg/L
N    top
Neutrophils (Poly, PMN) Blood 45–74% 0.45–0.74
O    top
Osmolality Plasma 285–295 mosmol/kg serum water 285–295 mmol/kg serum water
Oxygen percent saturation (sea level) B, arterial 97% 0.97 mol/mol
Oxygen tension (PO2) Blood 80–100 mmHg 11–13 kPa
P    top
Parathyroid hormone Serum 10–60 pg/mL 10–60 ng/L
Parathyroid hormone-related protein Plasma <1.3 pmol/L <1.3 pmol/L
pH Arterial Blood 7.38–7.44 7.38–7.44
Phosphatase, acid Serum 0–5.5 U/L 0.90 nkat/L
Phosphatase, alkaline Serum 30–120 U/L 0.5–2.0 nkat/L
Phosphorus, inorganic Serum 3–4.5 mg/dL 1.0–1.4 mmol/L
Platelets Blood 130,000–400,000/mm3 130–400 × 109/L
PMN (neutrophils, Poly) Blood 45–74% 0.45–0.74
Poly (neutrophils, PMN) Blood 45–74% 0.45–0.74
Potassium Serum 3.5–5.0 meq/L 3.5–5.0 mmol/L
Progesterone; men, prepubertal girls, preovulatory women, postmenopausal women Plasma <2 ng/mL <6 nmol/L
Progesterone; women, luteal, peak Plasma 2–20 ng/mL 6–60 nmol/L
Prolactin Serum 2–15 ng/mL 2–15 mg/L
Prostate specific antigen >40 years Serum 0.0–4.0 ng/mL 0.0–4.0 mg/L
Prostate specific antigen; male <40 years Serum 0.0–2.0 ng/mL 0.0–2.0 mg/L
Prostate-specific antigen (PSA); female Serum <0.5 ng/mL <0.5 mg/L
Protein, total Serum 5.5–8.0 g/dL 55–80 g/L
Protoporphyrin, free erythrocyte (FEP) Blood 16–36 mg/dL of red blood cells 0.28–0.64 mmol/L of red blood cells
PSA, free, in males 45–75 years, with PSA values between 4 and 20 mg/mL Serum >25% associated with benign prostatic hyperplasia >0.25 associated with benign prostatic hyperplasia
Pyruvate Plasma 0.5–1.5 mg/dL 60–170 mmol/L
R    top
RDW (Red cell distribution width) Blood 13–15% 0.13–0.15
Red cell distribution width (RDW) Blood 13–15% 0.13–0.15
Reverse T3 (rT3) Serum 2.6–18.9 ng/dL 0.04–0.29 nmol/L
Rheumatoid factor Serum <40 IU/mL <40 kIU/L
rT3 (Reverse T3)  Serum 2.6–18.9 ng/dL 0.04–0.29 nmol/L
S    top
Sodium Serum 136–145 meq/L 136–145 mmol/L
Sucrose hemolysis Blood Negative Negative
T    top
T3 (Free) Serum 230–420 pg/dL 3.5–6.5 pmol/L
T3 (Total) Serum 60–181 ng.dL 0.9–2.8 nmol/L
Testosterone; men Plasma 3–10 ng/mL 10–35 nmol/L
Testosterone; women Plasma <1 ng/mL <3.5 nmol/L
Thyroglobulin Serum 0–60 ng/mL 0–60 mg/L
Thyroid stimulating hormone (TSH) Serum 0.4–5.0 mU/mL 0.4–5.0 mU/L
Thyroxine (T4) Serum 5–12 mg/dL 64–154 nmol/L
Transferrin Serum 230–390 mg/dL 2.3–3.9 g/L
Triglycerides Serum <160 mg/dL <1.8 mmol/L
Troponin I Serum 0–0.4 ng/mL 0–0.4 mg/L
Troponin T Serum 0–0.1 ng/mL 0–0.1 mg/L
TSH (Thyroid stimulating hormone) Serum 0.4–5.0 mU/mL 0.4–5.0 mU/L
U    top
Uric acid; men Serum 2.5–8.0 mg/dL 150–480 mmol/L
Uric acid; women Serum 1.5–6.0 mg/dL 90–360 mmol/L
V    top
Vitamin A Serum 20–100 mg/dL 0.7–3.5 mmol/L
Vitamin B1 (thiamine) Serum 0–2 mg/dL 0–75 nmol/L
Vitamin B12 Serum 200–600 pg/mL 148–443 pmol/L
Vitamin B2 (riboflavin) Serum 4–24 mg/dL 106–638 nmol/L
Vitamin B6 Plasma 5–30 ng/ml 20–121 nmol/L
Vitamin C (ascorbic acid) Serum 0.4–1.0 mg/dL 23–57 mmol/L
Vitamin D3: 1,25-dihydroxy Serum 25–45 pg/mL 60–108 pmol/L
Vitamin D3: 25-hydroxy;  winter Plasma 14–42 ng/mL 34.9–105 nmol/L
Vitamin D3: 25-hydroxy;  summer Plasma 15–80 ng/mL 37.4–200 nmol/L
Vitamin E Serum 5–18 mg/mL 12–42 mmol/L
W    top
von Willebrand's antigen Blood 60–150% 60–150%
WBC (leukocyte count, white blood cell count) Blood 4.3–10.8 × 103/mm3 4.3–10.8 × 109/L
Westergren Sed Rate; females < 50 y/o Blood 0–20 mm/h 0–20 mm/h
Westergren Sed Rate; females > 50 y/o Blood 0–30 mm/h 0–30 mm/h
Westergren Sed Rate; males < 50 y/o Blood 0–15 mm/h 0–15 mm/h
Westergren Sed Rate; males >50 y/o Blood 0–20 mm/h 0–20 mm/h
White blood cell count (leukocyte count, WBC) Blood 4.3–10.8 × 103/mm3 4.3–10.8 × 109/L
Z    top
Zinc Serum 75–120 mg/dL 11.5–18.5 mmol/L

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Michael W. King, Ph.D / IU School of Medicine / miking at iupui.edu

Last modified: February 19, 2010