What are common lab findings in folic acid deficiency anemia?

Prepare for the CDR Gerontology Nutrition Exam with flashcards and multiple-choice questions. Each question is equipped with hints and explanations to ease your study process. Ace your exam with confidence!

In cases of folic acid deficiency anemia, one of the hallmark laboratory findings is an elevated mean corpuscular volume (MCV), indicating that the red blood cells are larger than normal, a condition known as macrocytosis. This occurs because folate is essential for DNA synthesis, and its deficiency leads to impaired cell division and consequently larger, but fewer, red blood cells.

Additionally, the low folate level is a direct indication of folic acid deficiency. This deficiency can result from inadequate dietary intake, malabsorption, or increased demand during certain life stages, such as pregnancy. The presence of low folate levels confirms that folate deficiency is contributing to the macrocytic anemia.

While some of the other choices may include high MCV, they fail to correctly relate it to low folate or provide accurate interpretations related to iron status or ferritin levels. Therefore, the correct identification of high MCV alongside low folate encompasses the fundamental characteristics of folic acid deficiency anemia.

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