We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Teachable Moment |

Hemodialysis in a Healthy Patient—A Case of an Erroneous Laboratory Result A Teachable Moment

Megan E. Himmel, PhD1; Kenneth Lam, MD2; Michael Fralick, MD2
[+] Author Affiliations
1University of Toronto Medical School, Toronto, Ontario, Canada
2Internal Medicine Program, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
JAMA Intern Med. 2016;176(4):431-432. doi:10.1001/jamainternmed.2015.8447.
Text Size: A A A
Published online


This case of a 49-year-old woman who was admitted for presumed methanol poisoning highlights the importance of ordering appropriate investigations and considering an unexpected laboratory value in the context of the patient’s clinical signs and symptoms.

Article InformationCorresponding Author: Megan Himmel, PhD, Undergraduate Medical Education–Faculty of Medicine, Medical Sciences Building, One King’s College Circle, Room 2111, Toronto, ON, M5S 1A8, Canada (megan.himmel@mail.utoronto.ca).

Correction: This article was corrected on July 5, 2016, to fix a calculation error related to conversion of SI (International System of Units) to empirical units for the serum ethanol level and the normal range of methanol.

Published Online: February 22, 2016. doi:10.1001/jamainternmed.2015.8447.

Conflict of Interest Disclosures: None reported.

Additional Contributions: We thank the patient for granting permission to publish this information. In addition, we thank Bourne Auguste, MD, Chief Medical Resident and Resident Physician, Women’s College Hospital, Toronto, Ontario, Canada, and Allan Detsky, MD, PhD, FRCPC, Department of Health Policy, Management and Evaluation, and Medicine, University of Toronto, Ontario, Canada, for guidance and critical review of the manuscript. No compensation was received for their contributions.

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview





Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

1 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.

See Also...
Articles Related By Topic
Related Collections
PubMed Articles