All of the features are seen in anorexia nervosa, except?

NORCET 3 - 2022 (Shift-1)

Mental Health Nursing

Medium

Appeared in: NORCET 3 - 2022 (Shift-1)

Explanation

Anorexia nervosa is characterized by severe malnutrition that suppresses the hypothalamic-pituitary-ovarian axis.
This suppression leads to low estrogen levels, causing amenorrhea (the absence of menstrual periods).
Menorrhagia, which is abnormally heavy or prolonged menstrual bleeding, is the opposite of amenorrhea and is therefore not a feature of anorexia nervosa.

Option A: Osteoporosis is a well-documented complication of anorexia nervosa.
Option B: Myocardial hypertrophy (thickening of the heart muscle) is not seen in anorexia nervosa. The condition actually causes the opposite: myocardial atrophy (wasting of the heart muscle).
Option C: Electrolyte imbalances, such as hypokalemia (low potassium), are very common and dangerous complications, particularly in the binge-eating/purging subtype.

Visual 1: Diagram 1: Pathophysiology of Amenorrhea in Anorexia Nervosa - A flowchart showing how low body weight and malnutrition lead to hypothalamic suppression, decreased GnRH, low LH/FSH, low estrogen, and ultimately amenorrhea.
Visual 2: Diagram 2: Cardiac Effects of Anorexia Nervosa - A comparison image showing a healthy heart versus a heart with myocardial atrophy, highlighting the thinned ventricular walls and reduced size seen in starvation.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Medical Complications of Anorexia Nervosa as background academic context rather than a clinical decision trigger.
Nurses must monitor patients with anorexia nervosa for amenorrhea as an indicator of the severity of malnutrition and hormonal disruption.
The presence of osteoporosis requires careful patient handling to prevent fractures and education on long-term bone health, which may not fully recover even with weight restoration.
Electrolyte monitoring is a critical nursing responsibility, as imbalances can lead to sudden cardiac arrest. Nurses must be prepared for cardiac monitoring and electrolyte replacement therapy.

How to Approach the Question

First, identify the core pathology of the condition in the stem: Anorexia nervosa is a state of severe starvation.
Second, analyze the lead-in keyword "EXCEPT". This means you are looking for the option that is NOT caused by or associated with anorexia nervosa.
Third, evaluate each option based on the pathophysiology of starvation. Starvation leads to the body breaking down tissues and shutting down non-essential functions.
Option A (Osteoporosis): Starvation affects hormones (low estrogen) and nutrient intake, leading to bone loss. This is a known feature.
Option B (Myocardial hypertrophy): Starvation breaks down muscle, including the heart (atrophy), it does not build it up (hypertrophy). This is a possible answer.
Option C (Electrolyte imbalance): Purging behaviors and poor intake disrupt electrolytes. This is a known feature.

Concept Tested & Keywords

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