![]() “Blood test results can vary a little bit, depending on the lab. If your result is a 9.1 mg/dL, right in the middle, you can feel confident that your calcium level is normal.īut what if a blood test result is at the very low or high end of normal, or even slightly outside the normal range? Is that a red flag? “Don’t jump to conclusions,” warns Dr. For example, if your routine blood work includes a test for calcium in the blood, your lab may list the normal range for calcium as 8.3 to 9.9 milligrams per deciliter (mg/dL). When you look at a printout of your lab results, you’ll find the normal ranges for each blood test next to your personal results. About normal ranges and interpreting the numbers Suzanne Salamon, assistant professor at Harvard Medical School. In others, it might indicate an important change in health that we need to follow or act on,” says geriatrician Dr. Should you be concerned? “It’s tricky, because in some tests, a borderline result makes no difference. ![]() Picture this: you’re reading the results of your recent bloodwork, and you notice some numbers are teetering on the edge of the normal range. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician. Please note the date each article was posted or last reviewed. ARCHIVED CONTENT: As a service to our readers, Harvard Health Publishing provides access to our library of archived content.
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