NU 665C Week 8 study guide for Exam 2 Questions with Correct Answers 100% Verified|
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A 17-year-old female with a BMI of 16 presents with amenorrhea, lanugo, bradycardia, and
severe food restriction. What is the most likely diagnosis? Anorexia Nervosa (Restricting
Type).
A 22-year-old college student reports binge eating followed by self-induced vomiting at least
twice a week for the last 4 months. Her BMI is normal. What is the most likely diagnosis?
Bulimia Nervosa.
A 30-year-old woman has recurrent binge eating episodes without purging. She feels guilty
after eating large amounts of food and eats even when not hungry. What is the best
pharmacologic treatment? Lisdexamfetamine (Vyvanse) or an SSRI.
A 9-year-old boy refuses to eat many foods due to their texture, leading to nutritional
deficiencies and weight loss. He has no body image concerns. What is the most likely diagnosis?
Avoidant/Restrictive Food Intake Disorder (ARFID).
Anorexia Nervosa (AN)
Why does hypokalemia occur? Inadequate intake + purging (if present) = low potassium
→ risk for cardiac arrhythmias.
Anorexia Nervosa (AN)
What is refeeding syndrome, and why is it dangerous? Occurs when a malnourished patient
starts eating again.
Phosphorus, magnesium, and potassium drop suddenly → can cause fatal cardiac arrhythmias.
Prevention: Start feeding slowly and supplement phosphorus.
Why do AN patients have bradycardia & hypotension? Body conserves energy → lowers
metabolism, heart rate, and blood pressure to survive starvation.
HR < 40 bpm → may require hospitalization.
, A 16-year-old girl is brought to the ED for dizziness and fainting. Her BMI is 15.5, and vitals
show HR 38 bpm, BP 88/52 mmHg. Labs show hypokalemia, hypophosphatemia, and metabolic
alkalosis. What is your next step? Hospital admission for cardiac monitoring, electrolyte
correction, and slow refeeding
Bulimia Nervosa (BN)
Why does vomiting cause hypochloremic metabolic alkalosis? Loss of stomach acid (HCl)
leads to increased bicarbonate, causing alkalosis.
What happens to amylase levels in BN? Elevated amylase is due to salivary gland
hypertrophy from frequent vomiting.
A 19-year-old college student reports binge eating followed by self-induced vomiting. Labs
show hypokalemia, hypochloremia, metabolic alkalosis, and elevated serum amylase. What is
the most likely diagnosis? Bulimia Nervosa
Why does BED lead to metabolic syndrome? Excess calorie intake → weight gain → insulin
resistance, high cholesterol, and fatty liver disease.
A 35-year-old woman presents with uncontrolled binge eating episodes. She has hypertension,
elevated glucose, and a BMI of 33. What medication is FDA-approved for her condition?
Lisdexamfetamine (Vyvanse).
Why do non-Western cultures present differently? Less focus on body image concerns.
Eating disorders may manifest as GI complaints or food avoidance rather than a desire to be
thin.
How does gender affect eating disorder diagnosis? Men are often underdiagnosed due
to stigma.
More common in athletes, bodybuilders, and wrestlers.
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A 17-year-old female with a BMI of 16 presents with amenorrhea, lanugo, bradycardia, and
severe food restriction. What is the most likely diagnosis? Anorexia Nervosa (Restricting
Type).
A 22-year-old college student reports binge eating followed by self-induced vomiting at least
twice a week for the last 4 months. Her BMI is normal. What is the most likely diagnosis?
Bulimia Nervosa.
A 30-year-old woman has recurrent binge eating episodes without purging. She feels guilty
after eating large amounts of food and eats even when not hungry. What is the best
pharmacologic treatment? Lisdexamfetamine (Vyvanse) or an SSRI.
A 9-year-old boy refuses to eat many foods due to their texture, leading to nutritional
deficiencies and weight loss. He has no body image concerns. What is the most likely diagnosis?
Avoidant/Restrictive Food Intake Disorder (ARFID).
Anorexia Nervosa (AN)
Why does hypokalemia occur? Inadequate intake + purging (if present) = low potassium
→ risk for cardiac arrhythmias.
Anorexia Nervosa (AN)
What is refeeding syndrome, and why is it dangerous? Occurs when a malnourished patient
starts eating again.
Phosphorus, magnesium, and potassium drop suddenly → can cause fatal cardiac arrhythmias.
Prevention: Start feeding slowly and supplement phosphorus.
Why do AN patients have bradycardia & hypotension? Body conserves energy → lowers
metabolism, heart rate, and blood pressure to survive starvation.
HR < 40 bpm → may require hospitalization.
, A 16-year-old girl is brought to the ED for dizziness and fainting. Her BMI is 15.5, and vitals
show HR 38 bpm, BP 88/52 mmHg. Labs show hypokalemia, hypophosphatemia, and metabolic
alkalosis. What is your next step? Hospital admission for cardiac monitoring, electrolyte
correction, and slow refeeding
Bulimia Nervosa (BN)
Why does vomiting cause hypochloremic metabolic alkalosis? Loss of stomach acid (HCl)
leads to increased bicarbonate, causing alkalosis.
What happens to amylase levels in BN? Elevated amylase is due to salivary gland
hypertrophy from frequent vomiting.
A 19-year-old college student reports binge eating followed by self-induced vomiting. Labs
show hypokalemia, hypochloremia, metabolic alkalosis, and elevated serum amylase. What is
the most likely diagnosis? Bulimia Nervosa
Why does BED lead to metabolic syndrome? Excess calorie intake → weight gain → insulin
resistance, high cholesterol, and fatty liver disease.
A 35-year-old woman presents with uncontrolled binge eating episodes. She has hypertension,
elevated glucose, and a BMI of 33. What medication is FDA-approved for her condition?
Lisdexamfetamine (Vyvanse).
Why do non-Western cultures present differently? Less focus on body image concerns.
Eating disorders may manifest as GI complaints or food avoidance rather than a desire to be
thin.
How does gender affect eating disorder diagnosis? Men are often underdiagnosed due
to stigma.
More common in athletes, bodybuilders, and wrestlers.
