Reader's Digest International - - Health -

A fer­ritin test mea­sures

A. the sever­ity of an im­mune re­ac­tion.

B. iron in the blood.

C. the body’s meta­bolic rate.

D. spa­tial in­tel­li­gence.

An­swer: B. A fer­ritin test mea­sures the amount of fer­ritin—a pro­tein that con­tains iron—in your blood. If lev­els are low, your doc­tor may di­ag­nose you with iron de­fi­ciency. A higher-than-nor­mal re­sult could point to liver dis­ease, hy­per­thy­roidism, rheuma­toid arthri­tis, Hodgkin’s lym­phoma or var­i­ous other con­di­tions.

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