The nurse is aware that the major health complication associated with anorexia nervosa is:

a. Cardiac dysrhythmia resulting in cardiac arrest Explanation of Choices Choice A Reason: Cardiac Dysrhythmia Resulting in Cardiac Arrest Cardiac dysrhythmias, or irregular heartbeats, are a significant health complication associated with anorexia nervosa. These dysrhythmias can result from electrolyte imbalances, particularly low potassium levels (hypokalemia), which are common in individuals with anorexia due to malnutrition and purging behaviors. Severe dysrhythmias can lead to cardiac arrest, making this one of the most critical and potentially fatal complications of anorexia nervosa. The heart muscle can weaken due to prolonged malnutrition, leading to a condition known as myocardial atrophy, which further increases the risk of cardiac complications. Choice B Reason: Endocrine Imbalance Causing Amenorrhea Amenorrhea, or the absence of menstruation, is a common endocrine complication in females with anorexia nervosa. This condition occurs due to the body’s response to severe weight loss and malnutrition, which disrupts the normal production of reproductive hormones. While amenorrhea is a significant health issue, it is not as immediately life-threatening as cardiac dysrhythmias. Amenorrhea can lead to long-term complications such as infertility and osteoporosis but does not typically result in acute medical emergencies. Choice C Reason: Decreased Metabolism Causing Cold Intolerance Decreased metabolism and cold intolerance are common symptoms in individuals with anorexia nervosa. The body reduces its metabolic rate in response to prolonged starvation to conserve energy. This can lead to a lower body temperature and increased sensitivity to cold. While uncomfortable and indicative of severe malnutrition, decreased metabolism and cold intolerance are not as immediately dangerous as cardiac dysrhythmias. These symptoms reflect the body’s adaptation to a state of energy deficiency but do not pose an immediate threat to life. Choice D Reason: Glucose Intolerance Resulting in Hypoglycemia Hypoglycemia, or low blood sugar, can occur in individuals with anorexia nervosa due to inadequate food intake. However, glucose intolerance and hypoglycemia are less common and less severe complications compared to cardiac dysrhythmias. Hypoglycemia can cause symptoms such as dizziness, confusion, and fainting, but it is typically manageable with appropriate nutritional support. It does not carry the same immediate risk of fatality as cardiac dysrhythmias. .