Assess Eating Disorders in Teens

Warning sign	What a parent sees	Question for the teen	When to refer the same day
Skipped meals	Breakfast left, lunch box returns full	Walk me through yesterday with times and what was on the plate	Acute food refusal today
Bathroom after meals	Water running, long lock on the door	What happens in the 20 minutes after you eat?	Blood in vomit, chest pain
Extra exercise	5 a.m. run the parent did not plan	What do you do if practice is canceled?	Fainting after a session
Clothes that hide the body	Hoodie in heat, refuses a weigh-in	When did these clothes last fit the way they used to?	Not this sign alone
Food rules at the table	Fight when a parent plates pasta	Which foods are not allowed even if a parent plated them?	Not this sign alone
Cold, dizzy, or faint	Holds the banister, always cold	Any fainting, chest pain, or you cannot get warm?	Faint, chest pain, or cannot stand
Missed periods	No pads or tampons this season	When did your last period match last year?	Not this sign alone
School lunch gone	Teacher emails uneaten lunch	Who actually sees you eat at school?	Not this sign alone

Educational content for licensed therapists, not clinical, medical, or legal advice. Eating-disorder work with adolescents sits in a higher-risk corner of practice. If you are not specialist-trained, the defensible move is a careful assessment plus referral, not a generic teen anxiety plan with food swapped in.

When you assess eating disorders in teens, the parent in the waiting room often has the sign. The teen has the sequence. Interview them apart. Then decide whether this hour stays outpatient.

In the 2011 National Comorbidity Survey Replication Adolescent Supplement of 10,123 US adolescents aged 13 to 18, lifetime anorexia nervosa was 0.3%, bulimia nervosa 0.9%, and binge-eating disorder 1.6% (Swanson et al., 2011). Those figures are that survey. They are not a universal teen rate. Do not write “rare” in the chart because the number is small. Screen the person in front of you.

If the first-visit packet, consent, and who may sit in the room are not set, finish that frame on the adolescent therapy intake form before you run this overlay. For the instrument you might add after the interview, use the eating disorder assessment page. Stay here for the teen overlay.

Questions for the teen and the parent

Do not run one list in a room with both people watching. The teen will protect the parent. The parent will fill silence.

Ask the teen for a day, not a philosophy. “I eat fine” is not yesterday.

Ask the parent for what they can see. They cannot see urge. They can see breakfast, bathroom time, and the teacher email.

Keep one yesterday question, one after-meal question, and one rest-day question in every first assessment of eating disorders in teens. If all three point the same way, you have a sign even if weight looks stable in clothes.

Do not argue calories. You will lose the hour. Ask what other people saw.

Download the teen therapy worksheets pack to give the young person a structured place to bring observations and questions back to the next session.

Medical thresholds that mean same-day referral

You are not the medical service. You still have to know when this hour stops. Eating disorders in teens can look conversational until fainting, chest pain, or food refusal walks in.

The Society for Adolescent Health and Medicine 2022 position paper lists findings that justify hospitalization for restrictive eating disorders in adolescents and young adults (Society for Adolescent Health and Medicine, 2022). The AAP 2021 clinical report tells pediatricians to arrange urgent hospital referral when the patient is medically unstable (Hornberger, Lane, & Committee on Adolescence, 2021). Use those papers. Do not invent a softer cutoff because the teen wants to finish soccer season.

Threshold	SAHM 2022 figure	What you may hear	What you do
Heart rate	Under 50 by day, under 45 at night	”I am just fit”	Stop. Same-day medical contact
Blood pressure	Under 90/45 mm Hg	Dizzy on standing	Same-day medical contact
Temperature	Under 96 F (35.6 C)	Always cold in the room	Same-day medical contact
Orthostatic change	Pulse up over 40 in those under 19, or BP down over 20 systolic or 10 diastolic	”I black out a little on stairs”	Same-day medical contact
Weight for age	At or under 75% median BMI	Clothes hide the drop	Same-day medical contact
Electrolytes or EKG	Hypokalemia, hyponatremia, hypophosphatemia, prolonged QTc, severe bradycardia	Chest pain, palpitations, hematemesis	Same-day medical contact
Other listed flags	Dehydration, arrested growth, failed outpatient care	Acute food refusal, no intake today	Same-day medical contact

Those numbers are the 2022 SAHM list for restrictive eating disorders in adolescents and young adults. They are not a scoring sheet you complete in psychotherapy. If the teen reports fainting, chest pain, blood in vomit, or no intake today, you do not need the rest of the table. Get them seen.

You may not have a heart rate in the room. Chart that. Send them to the pediatrician or emergency department the same day and write who took the message.

Family-based treatment as first-line

Eating disorders therapy for teenagers is not a lighter adult CBT plan. For adolescent anorexia nervosa, family-based treatment (FBT) is the outpatient treatment with the strongest head-to-head trial against adolescent-focused individual therapy.

In 121 adolescents with anorexia nervosa randomized at Stanford and the University of Chicago, more reached full remission with FBT than with adolescent-focused individual therapy at end of treatment (42% vs 23%) and at 12-month follow-up (49% vs 23%) (Lock, Le Grange, Agras, Moye, Bryson, & Jo, 2010). That is that trial, those two sites, those years. It is not a promise for the family in front of you.

SAHM names family-based therapy as first-line psychological treatment for adolescents with anorexia nervosa (Society for Adolescent Health and Medicine, 2022). Your job in this hour is not to run Phase 1 if you are not FBT-trained. Your job is to name whether a parent can take meal authority, and to refer the refeeding-authority work rather than coach it from a worksheet.

FBT phase	Parent job	What you chart this hour
Phase 1	Parents take meals and stop ED behavior	Who can sit at breakfast, lunch, and dinner
Phase 2	Control returns to the teen as eating stabilizes	Do not start this today
Phase 3	Adolescent issues after weight is restored	Do not start this today

If the parent cannot take meals, or the teen is 17 and living between two houses with no adult at dinner, chart that. FBT still may be first-line in the literature. It is not available in this living arrangement without a plan for who plates the food.

After medical stability is named, choose technique work on eating disorder therapy techniques. For stage, privacy, and caregiver choices that are not eating-disorder specific, use adolescent therapy techniques. Keep this hour on assessment and referral.

What the note records

A covering clinician should see who you interviewed, the signs, the questions, the medical flags, who holds meals, and the next step. They should not need the food log. The note for eating disorders in teens is the overlay, not the meal-by-meal file.

Where Emosapien fits

This assessment of eating disorders in teens leaves a thin trail: signs at home and school, the questions that got past “I eat fine,” medical flags, who can take meals, and the next step. Keeping that trail reviewable across a pediatric visit and an FBT intake is often harder than asking the rest-day question.

Emosapien helps you keep the session story in one place. It does not diagnose an eating disorder, read an EKG, or take meal authority from a parent.

Keep the family assessment connected

Draft notes that carry home and school signs, medical flags, and the next step between sessions.

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Fictional family follow-up

Fictional · Next session

Parent reported

The lunch box returned full twice this week.

Draft for your review

Keep the signs and referral plan together.

Review the next-step plan →

References

• Hornberger, L. L., Lane, M. A., & Committee on Adolescence. (2021). Identification and management of eating disorders in children and adolescents. Pediatrics, 147(1), e2020040279.
• Lock, J., Le Grange, D., Agras, W. S., Moye, A., Bryson, S. W., & Jo, B. (2010). Randomized clinical trial comparing family-based treatment with adolescent-focused individual therapy for adolescents with anorexia nervosa. Archives of General Psychiatry, 67(10), 1025-1032.
• Society for Adolescent Health and Medicine. (2022). Medical management of restrictive eating disorders in adolescents and young adults. Journal of Adolescent Health, 71(5), 648-654.
• Swanson, S. A., Crow, S. J., Le Grange, D., Swendsen, J., & Merikangas, K. R. (2011). Prevalence and correlates of eating disorders in adolescents: Results from the National Comorbidity Survey Replication Adolescent Supplement. Archives of General Psychiatry, 68(7), 714-723.