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Clin Asst Prof Tan Hock Heng

Clin Asst Prof Tan Hock Heng


Senior Consultant

Changi General Hospital

Specialty: Emergency Medicine

Sub-specialties: Emergency Toxicology, Occupational Toxicology

Clinical Appointments

  • Senior Consultant Emergency Medicine Changi General HospitalChangi General Hospital
  • Director, Toxicology Service Emergency Medicine Changi General HospitalChangi General Hospital


Dr Tan Hock Heng is an emergency physician and clinical toxicologist with Changi General Hospital (CGH) Emergency Medicine department. He was involved with the Ministry of Health Disaster Site Medical Command until 2011. Dr Tan now runs the Clinical Toxicology Consultation Service in CGH. He is also the secretary of the Section of Toxicology, College of Emergency Physician, Academy of Medicine Singapore as well as the vice president for The Toxicology Society of Singapore.

Dr Tan is the chief editor of Hazmat Medical Life Support, A Basic Provider Manual, while organising and lecturing for the hazmat medical life support courses locally and overseas. Currently he is appointed as a core faculty for the Singhealth Residency program.


  • Graduate Diploma in Occupational Medicine
  • Diplomate of American Board of Toxicology
  • FRCS (A&E) Edinburgh
  • Specialist Accreditation in Emergency Medicine
  • MBBS (Singapore)

Professional Appointments and Committee Memberships

  • Residency core faculty
  • Clinical Assistant Professor - Duke-NUS
  • Clinical Senior Lecturer - Yong Loo Lin School of Medicine
  • ​Singhealth Residency Core Faculty
  • Fellow Academy of Medicine (Emergency Medicine)
  • Course director - Hazmat Medical Life Support Basic Provider course
  • Instructor - ATLS, ACLS


  • Singhealth Silver Star Service award, 2012
  • MOH, DSMC, appreciation for deputy commander service award, 2012
  • CGH 20 year long service award, 2014

Research Interests


  • Mong R, Arciaga GJ, Tan HH. Use of a 23-hour emergency department observation unit for the management of patients with toxic exposures. Emerg Med J. 2017 Aug 2. pii: emermed-2016-206531. doi: 10.1136/emermed-2016-206531. [Epub ahead of print] PubMed PMID: 28768699.
  • Mong R, Tan HH. Snakebite by the Shore Pit Viper (Trimeresurus purpureomaculatus) Treated With Polyvalent Antivenom. Wilderness Environ Med. 2016 Jun;27(2):266-70. doi: 0.1016/j.wem.2016.01.001. Epub 2016 Apr 6. PubMed PMID: 27061038.
  • Steven Lim, Hock Heng Tan, Hazardous material, toxic and industrial events, Koenig & Schultz's Disaster Medicine: Comprehensive Principles & Practice 2nd Edition, Cambridge University Press Date Published: April 2016 isbn: 9781107040755
  • Sheth S, Tan EC, Tan HH, Tay L. Herb-induced cardiotoxicity from accidental aconitine overdose. Singapore Med J. 2015 Jul;56(7):e116-9. doi:10.11622/smedj.2015114. PubMed PMID: 26243980; PubMed Central PMCID: PMC4520923.
  • Tan HH, Teo S, Tseng HC. Work-related chemical exposures presenting to an emergency department in Singapore. Occup Med (Lond). 2014 Mar;64(2):113-9.
  • Hazmat Medical Life Support : A Basic Provider Manual [Paperback] by Heng, Tan Hock / Leong, Mark / Ponampalam, R. / Yue, Lee Chun / Goh, Jimmy. Publication Date 2014/06 World Scientific Pub Co Inc (US) ISBN 9789814583152
  • Tan HH, Mong R. Scorpion stings presenting to an emergency department in Singapore with special reference to isometrus maculatus. Wilderness Environ Med. 2013 Mar;24(1):42-7. doi: 10.1016/j.wem.2012.10.001. Epub 2013 Jan 9. PubMed PMID: 23312559.
  • Hospital Preparedness for Radiation Emergencies and Medical Management of Multiple Combined Radiation Injury Victims. Hoon Chin Steven Lim, Keng Sin Ng, Hock Heng Tan, Kok Wah Gabriel Leong, Proceedings of Singapore Healthcare Volume 20 Number 3 2011
  • Bebarta VS, Kao L, Froberg B, Clark RF, Lavonas E, Qi M, Delgado J, McDonagh J, Arnold T, Odujebe O, O'Malley G, Lares C, Aguilera E, Dart R, Heard K, Stanford C, Kokko J, Bogdan G, Mendoza C, Mlynarchek S, Rhyee S, Hoppe J, Haur W, Tan HH, Tran NN, Varney S, Zosel A, Buchanan J, Al-Helial M. A multicenter comparison of the safety of oral versus intravenous acetylcysteine for treatment of acetaminophen overdose. Clin Toxicol (Phila). 2010 Jun;48(5):424-30. Erratum in: Clin Toxicol (Phila). 2010 Aug;48(7):770
  • Tan HH. Epidemiology of Snakebites from A General Hospital in Singapore: A 5-year Retrospective Review (2004-2008). Ann Acad Med Singapore. 2010 Aug;39(8):640-8.
  • Tan HH, Hoppe J, Heard K. A systematic review of cardiovascular effects after atypical antipsychotic medication overdose. Am J Emerg Med. 2009 Jun;27(5):607-16.
  • Lim HC, Poulose V, Tan HH. Acute naphthalene poisoning following the non-accidental ingestion of mothballs. Singapore Med J. 2009 Aug;50(8):e298-301
  • Lim HC, Tan HH. International perspective from singapore on "methemoglobinemia and sulfhemoglobinemia in two pediatric patients after ingestion of hydroxylamine sulfate". West J Emerg Med. 2009 Aug;10(3):202.
  • Ponampalam R, Tan HH, Ng KC, Lee WY, Tan SC. Demographics of toxic exposures presenting to three public hospital emergency departments in Singapore 2001-2003. Int J Emerg Med. 2009 Apr;2(1):25-31.
  • Tan HH, Goh SH Toxicology today; Singapore Med J. 2006 Dec;47(12):1016-7
  • Tan HH, GohSH. Lightning injury: Changi Hospital experience; Hong Kong Journal of Emerg Med Vol 10, Number 4, Oct 2003

Research Trials

  • ​Principal Investigator for Dabigatran Reversal Trial 2014-2017