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Blood Test Values


The following excerpt is taken from Appendix B of Colon & Rectal Cancer: A Comprehensive Guide for Patients & Families by Lorraine Johnston, copyright 2000 by O'Reilly & Associates, Inc. For book orders/information, call (800) 998-9938. Permission is granted to print and distribute this excerpt for noncommercial use as long as the above source is included. The information in this article is meant to educate and should not be used as an alternative for professional medical care.

The following tables will provide you with approximate quantitative information about certain blood test results. Test results can be influenced by many things, such as how the blood was drawn and stored, whether the patient exercised recently or was dehydrated, how tight the tourniquet was, medications taken by the patient, and so on. Your lab will display its own norms alongside your test results. These norms may differ from other sources, as each lab recalculates their norms as their data accumulate.

Carcinoembryonic antigen (CEA) in particular is subject to differing assay calibrations by different labs, and is known to fluctuate throughout the day and in response to noncancerous conditions such as pregnancy, infections that affect the liver, and changes in smoking or alcohol consumption habits. CA19-9 and TPA are of limited usefulness because their sensitivity and specificity for colorectal cancers still are being scrutinized.

In order to evaluate correctly any cancer antigen test results you receive, you and your doctor should verify what range of values your laboratory is using, and note previous values among your own medical records to detect a trend, which may be more meaningful than an absolute value.

Cancer Antigens
Test Name Low Normal High Normal, Nonsmoker High Normal, Smoker
CEA

CA19-9

TPA

CA 15-3

0

0

0

0

3.0 ng/ml

37 U/ml1

187,000 U/ml2

25 U/ml - 40 U/ml3

5.0 ng/ml

N/A

N/A

N/A

Complete Blood Counts in Normal Adults
Test Name Low High
Red cell distribution width (RDW), CV (percents)

White cell count (WBC) x 109/liter blood

Platelet count (PLT) x109/liter blood

Mean platelet volume (MPV)

Mean corpuscular volume, fl/red cell (MCV)

Mean corpuscular hemoglobin, pg/red cell (MCH)

Mean corpus. hemgl. conc., g/dl red cells (MCHC)

11.5

3.9

140

6.3

80.0

26.4

31.0

14.5

11.3

450

10.3

100

34.0

36.0

White Cell Differentials (percents):
Polys

Bands

Lymphocytes

Monocytes

Eosinophils

Basophils

Atypical lymphocytes

42%

0%

15%

0%

0%

0%

0%

78%

4%

45%

12%

7%

2%

4%

Complete Blood Counts in Normal Adults:
Red Cell Counts by Gender
Men Women
Test Name Low High Low High
Red cell count (RBC) x 1012/l blood

Hemoglobin (HB) g/dl blood

Hematocrit (HCT)

4.52

14.0

0.40

5.90

18.0

0.52

4.1

12.3

0.36

5.10

15.3

0.45

Other Blood Values in Normal Adults
Test Name Low High
Direct bilirubin, mg/dl (Bili)

Total bilirubin, mg/dl (Bili)

Blood urea nitrogen, mg/dl (BUN)

Cholesterol

Creatinine, mg/dl (CRT)

Calcium mg/dl (Ca)

Chlorine mEq.l (Cl)

Potassium, mEq/l (K)

Phosphate mg/dl (P)

Sodium, mEq/l (Na)

Magnesium, mEq/l (Mg)

Erythrocyte Sedimentation Rate mm/hr (ESR)

Glucose, mg/dl

Lactate Dehydrogenase u/l (LDH)

Albumin gm/dl (Alb)

Alkaline Phosphatase (AlkP) u/l

(ALT, formerly SGPT) u/l

(AST, formerly SGOT) u/l

Thyroid TSH

Thyroid free T4

Uric acid, mg/dl

0

0

8

130

0.6

8.5

95

3.5

2.5

135

1.5

0

65

100

3.5

50

5

10

0.5

1

2.5

0.4

1.0

25

200

1.5

10.5

100

5.0

4.5

145

2.5

20

100

190

5.0

135

40

50

5.0

4

8.0


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