Which of the following complications resulting from anorexia nervosa is considered irreversible?

• A. Electrolyte imbalance
• B. Bradycardia
• C. Amenorrhea
• D. Osteoporosis

Answer: (D)

Verified step by step guidance

1. Understand that anorexia nervosa can lead to several medical complications, some of which may be reversible with treatment, while others can cause permanent damage.
2. Review each listed complication: Electrolyte imbalance, Bradycardia, Amenorrhea, and Osteoporosis, and consider their typical reversibility after recovery from anorexia.
3. Recognize that electrolyte imbalance (disturbances in minerals like sodium and potassium) can usually be corrected with medical intervention and nutritional rehabilitation.
4. Know that bradycardia (slow heart rate) often improves as the individual's nutritional status and overall health improve.
5. Understand that osteoporosis (loss of bone density) caused by prolonged malnutrition and hormonal changes in anorexia nervosa is often irreversible or only partially reversible, making it the complication considered permanent.