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Dr Zulkarnain Bin Ab Hamid

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  • Senior Consultant, Emergency Medicine Department, National University Hospital
  • Senior Consultant, Emergency Medicine Department, Alexandra Hospital
  • Assistant Professor, Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore


MBBS (S'pore), MMed (Emergency Medicine) (S'pore), MCEM (UK)


Emergency Medicine


Dr Zulkarnain is a senior consultant in the NUH Emergency Medicine Department. He holds several portfolios in clinical services, education and administration. He directs, plans and delivers training for the postgraduate clinicians, being the Director of Medical Officer Education, as well as the Program Director for the NUH Resident Physician Programme and Programme Director for the AH Hospital Clinician Program. He also holds the post of Deputy Director of the Clinical Skills Foundation Course for NUS Yong Loo Lin School of Medicine medical undergraduates – a course that introduces and equips the undergraduate students with clinical skills required for their clinical years. He sits in the examination committee for Phase I and Phase II undergraduates, as well as the Master of Medicine (Emergency Medicine) degree.

Dr Zulkarnain has a keen interest in resuscitation science and is a member of NUH Life Support Committee, setting the direction and guidelines for implementation of resuscitation practices in the hospital. Beyond the clinical and clinical education scene, Dr Zulkarnain is an NUH Wellbeing Champion and heads a multidisciplinary team within NUH EMD that looks into and manages the welfare and wellbeing of the staff in NUH EMD. He is also a committee member in the NUH Physician Wellbeing and Resilience committee, looking after the welfare of the residents and faculty members in NUH. 

Beyond NUH, Dr Zulkarnain is the Chief Instructor and Director of Advance Cardiac Life Support (ACLS) course in NUS. Prior to COVID, he was also the Chief of Spectator Medical Services for the Singapore F1 Grandprix since 2012. 

Dr Zulkarnain graduated with MBBS from NUS School of Medicine in 2004, and received his Master of Medicine and Membership of the College of Emergency Medicine in 2009. Dr Zulkarnain was accredited as a specialist after completing his training in 2012, and has been a consultant emergency physician since then.

Outside of work, Dr Zulkarnain is a strong advocate for health and wellbeing. He regularly engages in high-intensity workouts and trains in several martial arts. He has been practicing intermittent fasting (IF) since 2015 and has appeared as a guest on TV, radio and podcasts sharing the science and benefits of IF. 

Dr Zulkarnain is keen to collaborate with both healthcare and non-healthcare professionals who are involved in workplace wellbeing and wellness and hopes to be able to both share and learn best practices, and to do research in such areas. A passionate teacher, he is both eager to learn from the best teachers out there, and at the same time share his joy of teaching with others.

Journals & Publications

1. Ibrahim I, Chor WP, Chue KM et al. Is Arterial Base Deficit Still a Useful Prognostic Marker in Trauma? A Systematic Review. Am J Emerg Med. 2016 Mar;34(3):626-35.    (IF 2020 2.469)
2. Chor WPD, Yong PXL, Lim LL et al. Management of dyspepsia – The role of the ED Observation unit to optimize patient outcomes.  Am J Emerng Med. 2018 Oct;36(10):1733-1737.    (IF 2020 2.469)
3. Chor WPD, Wong SYP, Ikbal MFBM et al. Initiating End-Of-Life Care at the Emergency Department: An Observational Study. Am J Hosp Palliat Care. 2019 Nov;36(11):941-946.     (IF 2020 2.500)
4. Paliwal PR, Tan BYQ, Leow AST, Sibi S, Chor DWP et al. Impact of the COVID-19 pandemic on hyperacute stroke treatment: experience from a comprehensive stroke centre in Singapore. J Thromb Thrombolysis. 2020 Oct;50(3):596-603.     (IF 2020 2.300)
5. Chor WPD, Ng WM, Cheng L et al. Burnout amongst emergency healthcare workers during the COVID-19 pandemic: a multi-center study. Am J Emerg Med. 2020 Oct 24:S073506757(20)30936-0.    (IF 2020 2.469)
6. Ko SQ, Hooi BMY, Koo CY, Chor DWP et al. Remote monitoring of marginalized populations affected by COVID-19: a retrospective review. BMJ Open. 2020 Dec 31;10(12):e042647.     (IF 2020 2.692)
7. Chew NW, Sia CH, Wee HL, Benedict LJ, Rastogi S, Kojodjojo P, Chor WPD et al. Impact of the COVID-19 Pandemic on Door-to-Balloon Time for Primary Percutaneous Coronary Intervention – Results From the Singapore Western STEMI Network. Circ J 2021 Jan 25;85(2):139-149.     (IF 2020 2.993)
8. Phua K, Chew NWS, Sim V, Zhang AA, Rastogi S, Kojodjojo P, Chor WD et al. One-year outcomes of patients with ST-segment elevation myocardial infarction during the COVID-19 pandemic. J Thromb Thrombolysis. 2021 Aug26:1-11.     (IF 2020 2.300).
9. Cheng L, Ng WM, Lin Z, Law LSC, Yong L, Liew YST, Yeoh CK, Mathews I, Chor WPD, Kuan WS. Factors reducing inappropriate attendances to emergency departments before and during the COVID-19 pandemic: A multicentre study. Ann Acad Med Singap. 2021 Nov;50(11):818-826.     (IF 2021 2.473)

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