What two lab values may be artificially elevated in patients with Anorexia Nervosa?

The correct choice highlights Folate and B12 as lab values that may be artificially elevated in patients with Anorexia Nervosa due to changes in metabolism and nutritional status. In individuals suffering from Anorexia Nervosa, nutrient intake is often significantly restricted, impacting overall health and the body’s ability to process various vitamins and minerals.

In this context, during periods of malnutrition or starvation, the liver may store excess folate and B12 as the body conserves these nutrients in response to inadequate dietary intake. This can lead to elevated serum levels of these vitamins, despite the patient potentially being functionally deficient or not absorbing them properly.

Understanding this phenomenon is crucial for clinicians, as it indicates that laboratory results must be interpreted carefully in the context of a patient's overall nutritional status and eating behavior. Recognizing that these values may not accurately reflect a patient's biological availability or need can inform better management and treatment strategies.

The other choices center on different electrolytes and minerals that are not typically associated with the same kind of artificial elevation seen in vitamin levels due to the specific metabolic adaptations in Anorexia Nervosa.