is a heart rate below 40 the guideline line for urgent admission in eating disorders?

“Widely-sided indications for urgent admission can include a low heart rate below 40, with below 50 also being considered clinically significant.”

a host, a psychiatry resident said on PsychEd: Educational Psychiatry Podcast, 2026-10-01, at 09:01. hear it in context → the speaker cited: CPA or CPS guidelines.

the episode: PsychEd Shorts 17: Medical Considerations in Eating Disorders (at 09:01). we link the show's own page; we do not re-host audio.

first, the part that holds

a resting heart rate below 40 does show up as an admission threshold in some eating-disorder guidance, and a heart rate below 50 is a recognized red flag. the speaker has both numbers in the right range.

what we found when we went and looked

for young people, the guidelines we read set the admission line higher than 40. the adolescent-medicine society's 2022 position paper lists daytime heart rate below 50 and night-time below 45 as physiological instability that supports hospitalization. the american psychiatric association's 2022 draft guideline table lists below 50 as a factor supporting hospitalization for adults and adolescents alike. the canadian paediatric society's 2024 statement, which we read on the society's own site, uses the same 50 by day and 45 by night and does not mention 40 anywhere. so below 50 is more than "clinically significant": in these documents it is an admission criterion in its own right. the below-40 figure exists in other guidance, which a canadian family physician review describes as expert opinion, but it is not the canadian paediatric society's number.

assertion by assertion

both directions

for the speaker: heart rate at or below 40 is a real admission threshold in some guidance: the canadian family physician review reports it from expert-opinion guidelines. the speaker's framing also matches the record in a broad way: very low resting heart rate in eating disorders is a reason for admission, and the 40 to 50 range is where guidelines draw the line. calling below 50 clinically significant is true as far as it goes.

against: the guideline the speaker named, and the major north american adolescent guidance, put the admission line at 50 by day and 45 at night, not 40. both the adolescent-medicine position paper and the american psychiatric association draft list below 50 itself as a factor supporting hospitalization. a listener could take away that 40 to 50 is a watch zone. in the paediatric documents, that range already meets admission criteria. the below-40 figure is also not in the canadian paediatric society's statement.

what this cannot say

we did not have the speaker's slides or the exact document meant by "cpa or cps", so the attribution check rests on the canadian paediatric society's 2010 and 2024 statements. we found no canadian psychiatric association document. the 2024 canadian paediatric society statement sits on the society's website, which is outside our citation list, so it is not among the numbered sources even though we read it. the american psychiatric association table we read is the february 2022 public-comment draft, marked not for citation. the published 2023 guideline was behind a paywall from here, and its table could differ. we did not read the uk adult guidance, which is where a 40 threshold is often attributed, so we cannot say which adult documents use 40. these thresholds are consensus criteria rather than cutoffs validated in trials. athletes and some healthy young people have resting rates below 50, so none of these numbers decides admission alone.

sources, each one fetched and read

1. Society for Adolescent Health and Medicine. Medical management of restrictive eating disorders in adolescents and young adults (position paper). Journal of Adolescent Health, 2022 What we read there: table 4, factors supporting hospitalization: physiological instability including severe bradycardia, "heart rate <50 beats/minute daytime; <45 beats/minute at night". Fetched 2026-10-12 (HTTP 200). https://pmc.ncbi.nlm.nih.gov/articles/PMC10864000/
2. Anorexia nervosa requiring admission in adolescents. Canadian Family Physician, 2019;65(2):107-108 (PRETx program, BC Children's Hospital) What we read there: reports that the society for adolescent medicine and the american academy of pediatrics suggest admission when daytime heart rate is below 50 beats/min and night-time below 45, and that other guidelines based on expert opinion recommend admission when heart rate is at or below 40 beats/min. Fetched 2026-10-12 (HTTP 200). https://pmc.ncbi.nlm.nih.gov/articles/PMC6515507/
3. American Psychiatric Association. Practice guideline for the treatment of patients with eating disorders, public-comment draft, February 28, 2022, table 6 What we read there: "factors supporting medical hospitalization or hospitalization on a specialized eating disorder unit include one or more of the following": heart rate "<50 bpm" for adults and "<50 bpm" for adolescents (12-19 years). Fetched 2026-10-12 (HTTP 200). https://www.psychiatry.org/File%20Library/Psychiatrists/Practice/Clinical%20Practice%20Guidelines/APA-Draft-Practice-Guidelines-Eating-Disorders.pdf
4. Canadian Paediatric Society, Adolescent Health Committee. Family-based treatment of children and adolescents with anorexia nervosa: guidelines for the community physician. Paediatrics & Child Health, 2010;15(1) What we read there: gives no heart-rate threshold for admission and refers readers to other papers for indications for hospitalization. Fetched 2026-10-12 (HTTP 200). https://pmc.ncbi.nlm.nih.gov/articles/PMC2827322/

speakers are described by role, not named. one sentence is quoted under fair use, with attribution and a link to the original at the timestamp; we do not re-host audio or video. nothing on this page is a reason to start, stop or change a medication. if you have the file behind anything marked unverifiable, the research board is where people can answer. adam