Does this test have other names?
Metabolic panel, CMP, chem 14, chemistry panel;
chemistry screen, (formerly SMAC, sequential multiple
analyzer chemistry)
What is this test?
This test is a screening panel of 14 tests that
look at your metabolism.
Your body gets energy from food through a process called
metabolism. The tests in this panel help see how well your
liver and kidneys are working. These are two major organs
involved in metabolism.
These tests also measure your electrolyte and acid-base
balance, your blood sugar, and your blood proteins.
Electrolytes are mineral salts that are involved in many
cellular processes, including maintaining your body's fluid
and acidity (pH) levels.
Most labs do the same 14 tests. But these may be changed
depending on what your health care provider is looking for.
They may also vary slightly between labs. The 14 tests that
are included in most CMPs are:
Albumin, a liver protein.
Calcium.
Carbon dioxide, an electrolyte.
Chloride, an electrolyte.
Potassium, an electrolyte.
Sodium, an electrolyte.
Why do you need this test?
You may need this test as part of a routine physical.
You may also have this test to check for kidney and
liver diseases. It can also check on many other
problems, including diabetes.
If you take medicines for high blood pressure, you
may have this test to see how your kidneys and liver
are working. You may also have this test if you take
other medicines that can affect your kidneys or liver.
What other tests might you have
along with this test?
Your health care provider may
order other tests to look at how
well your liver and kidneys are working.
These tests may include:
Prealbumin.
Gamma-glutamyl transpeptidase.
Your provider may also order other
blood tests to check for iron deficiency;
anemia, and other disorders.
These tests may include:
Complete blood count.
Serum iron level.
Ferritin.
Transferrin.
Hemoglobin.
What do your test results mean?
Test results may vary depending on your;
age, gender, health history, and other things.
Your test results may be different depending
on the lab used. They may not mean you
have a problem.
Ask your health care provider what your test results mean for you.
Normal findings may be different depending
on the laboratory used. Commonly used
ranges for the 14 tests are:
Albumin: 3.5 to 5.5 grams per deciliter (g/dL)
ALP: 30 to 120 international units/liter (IU/L)
ALT: 10 to 40 IU/L
AST: 10 to 40 IU/L
BUN: 8 to 20 milligrams/per deciliter (mg/dL)
Calcium: 8.6 to 10.2 mg/dL
Carbon dioxide: 23 to 30 millimoles per liter (mmol/L)
Chloride: 98 to 106 mmol/L
Creatinine: 0.5 to 1.1 mg/dL (females), 0.7 to 1.3 mg/dL (males)
Glucose test: 70 to 99 mg/dL
Potassium test: 3.5 to 5.0 milliequivalents
per liter (mEq/L)
Sodium: 136 to 145 mEq/L
Total bilirubin: 0.3 to 1.0 mg/dL
Total protein: 5.5 to 9.0 g/dL
If your results are abnormal or you have a combination of abnormal levels, it may
mean you have a health problem, such
as diabetes, liver disease, or kidney disease.
You may need more tests to confirm or rule out specific conditions.
How is this test done?
The test is done with a blood sample.
A needle is used to draw blood from;
a vein in your arm or hand.
Does this test pose any risks?
Having a blood test with a needle
carries some risks.
These include bleeding, infection;
bruising, and feeling lightheaded.
When the needle pricks your arm or
hand, you may feel a slight sting or pain.
Afterward, the site may be sore.
What might affect your test results?
Eating or exercising before the test can
affect your results. Taking certain
medicines can also affect your results.
These include diuretics, steroids, insulin, and hormones.
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If you are pregnant or dehydrated, your results may be affected.
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