As an emergency department nurse, she has to deal with seriously injured accident victims and those needing urgent attention, like cardiac arrest patients.
Split-second decisions which determine life and death must be made.
Madam Nur Jelita Remie, 34, is on her feet the whole day, working long hours with hardly a break.
It is challenging work for the senior staff nurse with the Emergency Medicine Department at the National University Hospital (NUH).
"We have to remain calm during tense situations and offer comfort to patients who are experiencing symptoms of shock," she said.
You may think that someone in that field - who works three rotating shifts - would look forward to a relaxing beach holiday.
Instead, Madam Nur Jelita prefers volunteering on overseas trips. She has been doing so for five years now.
Her selflessness and dedication in helping others won her a Healthcare Humanity award last month.
First given out in 2004, the awards are disbursed from the Courage Fund that was set up by the National Healthcare Group, Singapore Health Services, Singapore Medical Association, Singapore Nurses Association and Singapore Press Holdings.
Madam Nur Jelita was among 76 receiving the annual honour, given to extraordinary health-care workers.
She has always been keen to participate in overseas medical relief efforts.
So when she met locum physician at NUH, Dr Lim Koon Jin, who is also the managing partner of disaster relief organisation, Crisis Relief Singapore (CRS), she leapt at the opportunity.
Since 2009, she has gone on three mission trips with CRS to Sri Lanka, Timor Leste and Indonesia.
She also visited an orphanage in Vietnam with her friends in 2010.