Medical

10 Things Your Doctor will not Inform about Your Blood Test

A routine blood test, also known as CBC is the complete blood count. This helps to count your white and red blood and calculate hemoglobin level with other blood components. It may uncover infection, anemia and blood cancer. Another blood test is metabolic panel for checking the function of liver, kidney and heart. The provider checks the levels of glucose, calcium and electrolyte. You might have a lipoprotein panel for calculating fat level in your blood such as bad cholesterol, good cholesterol and triglycerides. This can help to check the risk of heart disease.  This blog post discusses about 10 things your doctor might not tell about common blood test results unless you ask him.

  1. Good news about blood test results

    With regular blood tests, you will know your health problems immediately. So, if the cholesterol, blood chemistry and CBC are within the normal range, the doctor may send you a copy with little or almost no explanation. But when things appear normal, you need to discuss about your blood test with the doctor or nurse. Ask whether there are any changes from the last test of same type and what the changes mean.

  2. Normal can be different for men and women

    When you compare blood test results with the opposite sex, you will find difference between them. The normal range for number of red blood cells in complete blood count is somewhere between 5 million and 6 million cells each microliter for a man. For women, it is between 4 million and 5 million.

  3. Normal may or may not differ due to age

    The result for hemoglobin test may differ with age. For kids, the level of hemoglobin should be 11 to 13 grams/deciliter. But it is 14 to 17 grams/deciliter for men while 12 to 15 g/dl for women. Other tests like LDL cholesterol, the level less than 100 milligrams/deciliter is normal, despite your age. So, your age and other risk factors for coronary disease can influence how the doctor responds when the blood test denotes high cholesterol. If you are a man and above 45 years or a woman over 55 years and have diabetes or heart disease, then your doctor may advice to take steps for reducing cholesterol.

  4. Positive result of blood test may not be good news

    There are some blood tests which can detect diseases by looking for molecular markers in the blood sample. Some tests are hepatitis C, HIV, sickle cell anemia and BRCA1 or BRCA2 gene test for detecting the risk of ovarian cancer. The results are positive when the test denotes disease market like protein, DNA or antibody. So, a positive test result detects you might have this disease that you were exposed earlier.

  5. Negative blood test result is generally good news

    When it is about blood tests, negative result means the test did not identify what it requires. This indicates whether it is a risk factor or a disease marker for your health condition. When conducting a test to know about infectious disease, an interferon gamma produce assay for the tuberculosis for negative result. This is good news as the test did not find any proof of infection.

  6. False positive result is possible

    The screening test for a condition gives confirmation by the second. This means conducting specific test to know whether or not the result is accurate for your health. Rapid HIV test provides false positive result which means the result is positive but the person doesn’t have the disease. This may happen with some tests that detect antibodies as the immune system produces antibodies and interferes with the test.

  7. False negative results may occur

    Sometimes, the test may not denote you have the disease even when you suffer from it. For example, when you conduct blood test for hepatitis C and the results are negative, you might still have an infection. If you test for Lyme disease in the first few weeks of infection, the blood test may still be negative. This happens when your body does not develop antibodies.

  8. Test values are different from one lab to other

    Different lab technicians compare blood test results with a normal range for that laboratory. The reference range depends on the test results from people who have already done their tests in this lab. The normal range might not be same for different labs and the report of earlier blood test may differ from the new report.

  9. Abnormal results might not be due to some disease

    The test result outside normal range does not mean you are having a disease. The result may be unusual due to other reasons. When conducting a fasting plasma glucose blood or you drank alcohol the night before the test, the result may be outside normal range. You need to talk to the doctor before conducting any test and know whether you require some preparations before drawing blood.

  10. Mistakes may happen at any point of time

    Though the combinations of blood test samples are exceptional, they actually happen. It is important to know how you give your blood sample before the provider analyses it. This ensures to get correct results from the blood test. When the blood sample is taken in a wrong container or kept for a long time, chances are you can get incorrect test result.

Thus, you need to have proper understanding of blood test results for taking right decision about your diet and lifestyle. Feel free to walk into your nearest clinic for private blood tests in London and improve your health condition.

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