Dr. Melody Ong – Emergency Room Doctor | Mississauga, ON

Dr. Melody Ong is an experienced Emergency Room Doctor, committed to delivering high-quality acute medical care to patients presenting to the Emergency Department. Practicing at Postgraduate Medical Education in Mississauga, ON, she is a key member of the frontline medical team serving the community. She adheres to the standards set by the College of Physicians and Surgeons of Ontario (CPSO). Dr. Ong is skilled in the rapid assessment, diagnosis, and stabilization of a broad spectrum of urgent and emergent medical, surgical, and traumatic conditions in patients of all ages. This includes managing time-sensitive situations, performing necessary emergency procedures, and coordinating care effectively within the fast-paced ER environment. The Emergency Department operates 24/7 to provide care for urgent and life-threatening conditions. Patients are seen based on the severity of their condition, as determined by a triage process.

She graduated with a Medical Degree from the University of Ottawa in Canada and has accumulated over 5 years of experience as an Emergency Room Doctor since 2019. Dr. Ong is recognized as a Royal College of Physicians and Surgeons of Canada (RCPSC) Specialist by the College of Physicians and Surgeons of Ontario (CPSO). Her training and certifications ensure she maintains the highest standards of emergency medical practice and patient safety.

Dr. Ong's professional philosophy centers on providing rapid and accurate assessment in critical situations, delivering compassionate care under pressure, and working collaboratively within a multidisciplinary team. She is dedicated to adhering to evidence-based emergency medicine protocols, prioritizing patient safety, and advocating for patient needs in acute settings. She delivers emergency care fluently in English and is committed to serving the community of Mississauga with professionalism and compassion.

Dr. Melody Ong is experienced in assessing and managing a wide array of acute medical and surgical emergencies, including (but not limited to):

Acute Cardiovascular Conditions

Dr. Ong manages involving sudden and critical conditions affecting the heart and blood vessels that require immediate medical attention and intervention.

• Chest Pain (e.g., suspected Acute Coronary Syndrome, Myocardial Infarction): Swift investigation and stabilization for patients with symptoms suggestive of ischemic heart disease.
• Aortic Dissection / Aneurysm (Suspected): Managing potential complications such as malperfusion syndromes.
• Cardiac Arrhythmias (e.g., Atrial Fibrillation with Rapid Response, Ventricular Tachycardia): Prompt diagnosis and emergency management of hemodynamically significant abnormal heart rhythms, including electrical cardioversion, pharmacological cardioversion, or rate control strategies.

Acute Respiratory Conditions

Dr. Ong manages providing immediate care for patients experiencing acute respiratory distress or failure.

• COPD Exacerbation: Management of acute worsening of chronic obstructive pulmonary disease (COPD), characterized by increased dyspnea, cough, and sputum production, often requiring bronchodilators, systemic corticosteroids, and antibiotics if bacterial infection is suspected.
• Pulmonary Embolism: Rapid diagnostic workup (e.g., Wells score, PERC rule, D-dimer testing, CT pulmonary angiography, or V/Q scan) for patients with suspected blood clots in the lungs (PE).

Trauma and Musculoskeletal Injuries

Dr. Ong manages employing evidence-based approaches to treat musculoskeletal trauma and facilitate appropriate follow-up.

• Soft Tissue Injuries (e.g., Contusions, Hematomas, Sprains): Assessment and management of bruises (contusions), collections of blood in tissues (hematomas), and ligamentous sprains or muscle/tendon strains.
• Fractures, Dislocations, and Sprains/Strains: Effective initial pain management, timely closed reduction of simple joint dislocations (often under procedural sedation), and appropriate immobilization using splints, casts, or slings to protect the injured area.
• Head Trauma / Concussion (Mild Traumatic Brain Injury): Providing anticipatory guidance regarding potential post-concussive symptoms and when to seek further medical attention.

This list is not exhaustive. The Emergency Department is equipped to handle a broad spectrum of urgent health issues. If you believe you have a medical emergency, please proceed to the nearest ER or call emergency services.

• Fracture and Dislocation Management (Initial): Evaluating neurovascular status distal to injuries to identify and manage complications.
• Wound Care and Laceration Repair: Educating patients on proper wound care and signs of infection following repair.
• Management of Acute Pain and Symptom Relief: Prompt and effective symptom control for distressing conditions such as severe nausea, vomiting, acute shortness of breath, or systemic allergic reactions.
• Care for Acute Exacerbations of Chronic Diseases: Managing acute flare-ups of chronic conditions such as asthma, chronic obstructive pulmonary disease (COPD), congestive heart failure, diabetes (e.g., DKA, HHS), or sickle cell crisis.
• Lumbar Puncture (Spinal Tap): Utilizing aseptic technique and careful patient positioning to ensure a safe and successful procedure.
• Diagnostic Workup for Acute Conditions: Ordering and interpreting urgent laboratory tests (blood work, urinalysis, cardiac markers, etc.) and imaging studies (X-rays, CT scans, ultrasounds).

Note: This list outlines key areas of emergency medical care. The services provided by Dr. Ong are tailored to the immediate needs of patients in acute situations.

All emergency medical services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO) and relevant CAEP (Canadian Association of Emergency Physicians) and relevant acute care guidelines. Emergency care is prioritized based on medical urgency.

Postgraduate Medical Education is situated in Mississauga's City Centre, in the Square One Area neighborhood. The Emergency Department is conveniently located near Dixie Outlet Mall, accessible via MiWay (Mississauga Transit), with clear signage for ER patient drop-off and parking. The hospital's ER is fully accessible to all patients, with designated parking spots for emergency access. Hospital parking is available, and patients are advised to follow signage for ER entrance and parking. The ER serves as a critical access point for urgent medical care within the community, providing comprehensive emergency services integrated with hospital facilities. It is a high-acuity environment where patients receive prompt attention from trained emergency physicians like Dr. Ong, in collaboration with a dedicated team of healthcare professionals.

What is the primary role of an Emergency Room Doctor like Dr. Ong?

An Emergency Room Doctor, such as Dr. Ong, is a physician specifically trained to provide immediate medical evaluation and treatment for a wide spectrum of acute illnesses and injuries, ranging from minor concerns to critical, life-threatening emergencies. Their core role involves rapid assessment (triage and diagnosis), stabilization of vital functions, performing necessary emergency procedures, and making crucial decisions about patient disposition (admission, transfer, or discharge). As a an Emergency Room Doctor trained to provide immediate medical care for a wide range of acute illnesses and injuries., Dr. Ong is highly skilled in managing the unpredictable and often high-pressure environment of the emergency department, working collaboratively with a team of nurses, technicians, and other specialists.

When should I see Dr. Ong in the ER versus my family doctor for a health issue?

The Emergency Room, where Dr. Ong practices, is designed for urgent and emergency situations—conditions that require immediate medical intervention to prevent serious harm or death. Your family doctor, on the other hand, provides comprehensive primary care, including treatment for common illnesses, management of long-term health conditions, immunizations, and preventative screening. For problems that are not immediate emergencies, your family doctor can provide more personalized and continuous care. If you have a non-urgent issue, the ER may involve a long wait.

When should I go to the Emergency Room (ER) where Dr. Ong works, versus seeing my family doctor or going to a walk-in clinic?

You should visit the ER for conditions that you believe could be life-threatening, limb-threatening, or could cause serious harm if not treated quickly. This includes symptoms like sudden severe pain (especially chest, abdominal, or head), difficulty breathing, suspected broken bones from a significant injury, uncontrolled bleeding, sudden changes in vision or neurological function, or if you've been advised to go by another healthcare provider. For less urgent concerns like mild colds, chronic pain management, or routine follow-ups, your family physician or a local urgent care/walk-in clinic is the better choice. ERs prioritize the most critical patients, meaning wait times for non-urgent issues can be considerable. The team, including Dr. Ong, is focused on providing immediate care for emergencies.

What should I bring with me if I need to go to the Emergency Room where Dr. Ong works?

When coming to the Emergency Room, please ensure you have your health insurance card (e.g., OHIP, AHCIP, MSP, RAMQ card). It's also extremely beneficial for Dr. Ong and the medical team if you can provide an accurate list of all medications you are currently taking (including over-the-counter drugs and supplements), a list of any allergies you have, and details of any important past medical conditions or surgeries. If you are accompanying someone else, try to have this information for them.

Why are wait times in the Emergency Room sometimes long?

Emergency departments, including the one where Dr. Ong practices, utilize a triage system. This means patients are not seen on a first-come, first-served basis, but rather based on the severity and urgency of their medical condition. Patients with life-threatening injuries or illnesses (like heart attacks, strokes, or major trauma) are always prioritized and seen first. This can result in longer wait times for those with less urgent conditions, especially during peak hours or when the ER is managing multiple critically ill patients. The entire ER team, including Dr. Ong, works diligently to provide care to everyone as quickly and safely as possible.

What is the role of the triage nurse when I arrive at the ER?

The triage nurse in the ER performs a crucial initial assessment to rapidly evaluate how serious your condition is. They will ask about your symptoms, check your vital signs (like blood pressure, heart rate, and temperature), and assign you a triage level. This level dictates how quickly you need to be seen by an Emergency Room Doctor such as Dr. Ong, ensuring that patients with life-threatening conditions receive immediate care. They are a key part of the ER team that ensures patient safety and efficient flow.

Postgraduate Medical Education
Room M106 Medical Science Building, 100 Queensway W, University of Western Ontario Schulich School of Medicine
Mississauga, ON L5B 1B8

Hospital Main Line: (905) 848-7100

The hospital Emergency Department is fully accessible to all patients.

Dr. Ong is a licensed Emergency Room Doctor regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Regulated Health Professions Act, 1991 and Medicine Act, 1991 in ON. Emergency Room services are typically accessed by presenting directly to the Emergency Department or via ambulance (e.g., by calling 911) for urgent medical conditions. No direct referral is usually required to be seen in the ER by Dr. Ong or the on-duty emergency team.

Verify Dr. Ong's registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Ong-Melody/0325776-114739