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

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

   Positive: The lab found whatever your doctor was testing for. So if you had a test for strep throat, testing positive means you do have strep throat. Negative: The lab didn’t find whatever you ...

3. Comprehensive Metabolic Panel: Purpose, Procedure, Results

   www.webmd.com/.../comprehensive-metabolic-panel

   Ask your doctor to help you understand what your results mean. Normal comprehensive metabolic panel results. General ranges for normal results are as follows: Albumin: 3.4-5.4 grams/deciliter (34 ...

4. CBC Test: Purpose, What It Measures, and Normal Results - 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 ...

5. Vitamin B12 Test & Normal Vitmain B12 Levels ... - WebMD

   www.webmd.com/a-to-z-guides/vitamin-b12-test

   The normal range for vitamin B12 can vary slightly depending on the lab. But a normal level of vitamin B12 in your bloodstream is generally between 190 and 950 picograms per milliliter (pg/mL ...

6. 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 ...

7. Potassium Levels Blood Test: High vs. Low, Normal K Level - WebMD

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

   Kidney disease is a common cause of a high potassium level. Either high or low potassium levels can cause heart problems. Low potassium can cause muscle cramps. You often have a blood test with ...

8. Antinuclear Antibodies (ANA) Test: Results, Positive ... - WebMD

   www.webmd.com/a-to-z-guides/what-is-an...

   Your test is positive if it finds antinuclear antibodies in your blood. A negative result means it found none. A positive test doesn’t mean that you have an autoimmune condition. Between 3% and ...

9. Red Blood Cell Count Test: Why It Is Performed, Risks ... - WebMD

   www.webmd.com/.../what-is-red-blood-cell-count-test

   Red Blood Cell Count Test Risks. The red blood cell count test is done with a needle, so it has some risks. These include bleeding, bruising, infections, and dizziness. The pain of needle pricking ...