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2. 10 Important Blood Tests: What They Show, Why ... - Healthline

   www.healthline.com/health/blood-tests

   diabetes. HIV. anemia. cancer. coronary heart disease. Even if a person does not have heart disease, a blood test can show whether they may be at risk of developing the condition. Other blood ...

3. Lab Test Results Guide: Positive vs Negative, Ranges ... - WebMD

   www.webmd.com/a-to-z-guides/lab-test-results

   In this case, positive doesn’t necessarily mean “good” and negative doesn’t necessarily mean “bad.”. Instead: Positive: The lab found whatever your doctor was testing for. So if you ...

4. How to Prepare for a Blood Test - Healthline

   www.healthline.com/.../how-to-prepare-for-blood-test

   Preparation tips for the day of your test. Here are preparation tips you can follow on the day of your blood test: Drink plenty of water. Staying hydrated keeps more fluid in your veins, making ...

5. Hemoglobin (Hgb) Test Results: Typical, Low, and High Levels

   www.healthline.com/health/hgb

   High or low results may occur with certain health conditions, including anemia, internal bleeding, and diseases affecting the heart, lungs, or kidneys. The hemoglobin (Hgb) test measures how much ...

6. Complete Blood Count (CBC) Test - WebMD

   www.webmd.com/a-to-z-guides/complete-blood-count

   A complete blood count (CBC) is a test that counts the cells that make up your blood: red blood cells, white blood cells, and platelets. Your doctor may order a CBC as part of a routine checkup or ...

7. The Facts on Fasting for Blood Tests - WebMD

   www.webmd.com/.../fasting-blood-tests

   You will normally need to fast for 8-12 hours before a blood test. But your doctor will tell you exactly how long, as fasting periods are different for different tests. Your doctor may also tell ...

8. Fasting Before a Blood Test: How Long to Fast and More

   www.healthline.com/health/fasting-before-blood-test

   blood glucose test. liver function test. iron level blood test. basic metabolic panel. renal function panel. Some lipid profile tests may also require you to fast for 9–12 hours, but research ...

9. Iron (Fe) Levels & Iron Blood Test: Purpose, Procedure, Results

   www.webmd.com/a-to-z-guides/iron-blood-test

   Your health care provider will take a sample from a vein in your arm and send it to a lab. The lab results will show whether iron levels in your blood are too high or too low. A low iron level can ...