Blood glucose monitoring |
| Definition: |
| A measurement of glucose in the blood that can be done at any time on a portable machine. It can be a self test for the diabetic (see also "glucose"). |
| Alternative Names: |
| Glucose monitoring; Random glucose; Glucose - random; Serum glucose - random |
| How the test is performed: |
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The finger is pricked and then a drop of blood is put on a reagent (a chemical substance known to react in a specific way) strip. The meter then reads the strip and displays the results as a number on a digital display. Newer monitors can use blood from other areas of the body besides the fingers reducing discomfort |
| How to prepare for the test: |
| Have all test items within reach before starting because timing is important. Clean the fingertip with soap and water or an alcohol swab. The fingertip needs to be completely dry before pricking. Infants and children: The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:
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| How the test will feel: |
| There is a sharp prick. |
| Why the test is performed: |
| The test allows the diabetic to carefully monitor blood glucose levels to assure that they are within the normal range. The individual can then respond quickly to high or low blood sugar levels (diabetes or hypoglycemia) with appropriate intervention. This test can also be a screening test for blood glucose levels. |
| Normal Values: |
| Range from 60 to 140 milligrams per deciliter but can vary depending on physical activity, meals, and insulin administration. |
| What abnormal results mean: |
| If levels are too low, the person is in a state of hypoglycemia. Some glucose (food) should be consumed, and the individual may need to alter the next insulin dose and possibly future insulin doses as well. If levels are too high, the person is hyperglycemic, and may need additional insulin. Additional conditions under which the test may be performed:
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| What the risks are: |
| There is a slight chance of local infection at the puncture site. A small amount of bleeding may occur after the puncture. |
| Special considerations: |
| The correct procedure must be followed or the results will not be accurate. Abnormal results, particularly in a person not known to be diabetic, may indicate a need to obtain a fasting blood glucose or a glucose tolerance test. Consult the health care provider. |
Reviewed By: Todd T. Brown, M.D., Division of Endocrinology and Metabolism, Johns Hopkins University, Baltimore, MD. Review provided by VeriMed Healthcare Network.
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