ACE Health Coach Certification Practice Test

Which medical symptom of untreated anorexia nervosa is directly related to arrythmias of the heart?

1. Low potassium levels

2. Atrophy of the gut

3. Diminished peristalsis

4. Osteopenia or osteoporosis

The correct answer is: Low potassium levels

Low potassium levels, or hypokalemia, are a significant medical symptom associated with untreated anorexia nervosa that directly affects heart health. In the context of this eating disorder, individuals often do not consume adequate nutrients, leading to electrolyte imbalances, including critically low potassium levels. Potassium is essential for maintaining proper electrical activity of the heart. Insufficient potassium can disrupt the heart's rhythm, potentially leading to arrhythmias, which are irregular heartbeats that can be life-threatening. In contrast to the correct answer, atrophy of the gut, diminished peristalsis, and osteopenia or osteoporosis are serious complications of anorexia nervosa but are not directly related to cardiac arrhythmias. Atrophy of the gut and diminished peristalsis primarily impact the digestive system, while osteopenia and osteoporosis involve bone density and strength, representing long-term consequences of malnutrition rather than immediate threats to cardiac function. Thus, the direct connection between low potassium levels and arrhythmias underscores its critical significance in the context of anorexia nervosa.