Registered Practical Nurse (RPN) Practice Test

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What has studies of biochemical theory in bulimia nervosa indicated about the women's mood and eating patterns?

  1. They are unaffected by biochemical changes

  2. Depressed mood correlates with a depletion of tryptophan

  3. Hormonal changes are primarily responsible for their symptoms

  4. Dietary adjustments eliminate mood swings

The correct answer is: Depressed mood correlates with a depletion of tryptophan

Studies of biochemical theory in bulimia nervosa have indicated that there is a correlation between depressed mood and the depletion of tryptophan. Tryptophan is an essential amino acid that serves as a precursor to serotonin, a neurotransmitter that plays a crucial role in regulating mood. In individuals with bulimia nervosa, fluctuations in mood and eating patterns can be linked to disruptions in serotonin levels, often influenced by tryptophan availability. When dietary intake leads to low levels of tryptophan, this can result in lower serotonin production, which in turn may exacerbate feelings of depression and impact eating behaviors. Thus, the relationship between mood and biochemical changes is significant, highlighting the importance of understanding these underlying factors in the management of bulimia nervosa.

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