Add Yahoo as a preferred source to see more of our stories on Google. The answer is a little complicated. Here’s what a faint line on a COVID test can mean—including a very faint line on a COVID ...
The hepatitis A virus (HAV) antibody (AB) total test identifies both types of antibodies that the body produces in response to HAV infection. A reactive result means the test has detected HAV ...
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Herpes IgG Test: Purpose and What Results Mean
The herpes IgG test is a blood test used to diagnose herpes simplex virus (HSV). This includes HSV-1, the type most commonly linked to cold sores, and HSV-2, the type mainly associated with genital ...
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Understanding What MCHC Blood Test Results Mean
Mean corpuscular hemoglobin concentration (MCHC) is a blood test that calculates the average concentration of hemoglobin in red blood cells in relation to their total volume. Low MCHC values may ...
The hepatitis B surface antibody test (HBsAb) detects antibodies in the blood to determine if someone is immune to the hepatitis B virus (HBV). A negative or nonreactive result means the individual is ...
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