Basic Life Support for Dental Professionals:
What i learned from a BLS Program

As healthcare professionals, we learn about diseases, diagnosis and treatment every day. But there is another skill that every healthcare professional should be prepared to use when a patient’s condition suddenly becomes life-threatening: Basic Life Support (BLS).

Today, I attended a Basic Life Support (BLS) program, and the session was much more than learning how to perform CPR. We discussed how to recognize an emergency, how to ensure scene safety, how to respond to cardiac arrest, how to manage choking and several important first-aid principles, including what to do when someone has suffered a snake bite.

As a dental intern, the session was particularly relevant to me because emergencies can occur even in a dental clinic. A patient may suddenly become unconscious, develop cardiac arrest, experience airway obstruction or develop another medical emergency during or after treatment.

The most important lesson I took from the program was simple:

In an emergency, knowing what to do is just as important as knowing what not to do.

This blog is a summary of what I learned and why BLS and basic emergency preparedness are important for dental and healthcare professionals.

Basic Life Support (BLS) refers to the immediate emergency care provided to a person who has a life-threatening condition, particularly when there is a problem with breathing or circulation.

BLS focuses on recognizing an emergency quickly and providing immediate interventions while additional medical help is being arranged.

The key components include:

• Recognizing an emergency
• Ensuring scene safety
• Assessing responsiveness
• Calling for emergency assistance
• Checking breathing
• Starting CPR when indicated
• Using an Automated External Defibrillator (AED) when available
• Managing airway obstruction such as choking
• Continuing care until advanced medical help arrives

BLS is especially important for healthcare professionals because they may be among the first people present when a medical emergency occurs.

One of the first concepts discussed during the program was scene safety.

Before rushing toward a person who appears to be in trouble, the rescuer should first make sure that the environment is safe.

This is important because a rescuer who becomes injured cannot effectively help the patient.

Things to consider include:

• Is there any traffic or moving vehicle?
• Is there fire, smoke or an electrical hazard?
• Is the area structurally safe?
• Is there any dangerous equipment nearby?
• Is there a risk of chemical exposure?
• Is there any ongoing threat to the rescuer or patient?

Once the environment is reasonably safe, the rescuer can approach the patient.

This principle applies not only to accidents outside the clinic but also to healthcare settings.

The simple rule:

Check the scene → Protect yourself → Approach the patient → Assess the patient.

One of the most important topics covered during the BLS program was cardiac arrest.

Cardiac arrest occurs when the heart suddenly stops effectively pumping blood to the brain and other vital organs.

It is different from a heart attack.

A heart attack (myocardial infarction) occurs when blood flow to part of the heart muscle is blocked.

A cardiac arrest occurs when the heart suddenly stops producing effective circulation.

However, a heart attack can sometimes lead to cardiac arrest.

How can cardiac arrest present?

A person in cardiac arrest may:

– Suddenly collapse
– Become unresponsive
– Not breathe normally
– Have no normal signs of circulation

Sometimes the person may produce abnormal gasping movements, known as agonal breathing. This should not be mistaken for normal breathing.

The important point is that cardiac arrest requires immediate action.

CPR stands for Cardiopulmonary Resuscitation.

It is an emergency procedure performed when a person is unresponsive and not breathing normally.

The purpose of CPR is to provide artificial circulation and ventilation until spontaneous circulation is restored or advanced medical care takes over.

For an adult who is unresponsive and not breathing normally:

1. Ensure scene safety

Make sure it is safe to approach.

2. Check responsiveness

Tap the person and speak loudly to determine whether they respond.

3. Call for help

Activate the emergency response system and ask someone to bring an AED if available.

4. Assess breathing

Look for normal breathing.

If the person is unresponsive and not breathing normally, begin CPR.

5. Start chest compressions

Place the heel of one hand over the center of the chest, place the other hand on top and perform compressions.

For adult CPR, chest compressions should generally be performed at a rate of 100–120 compressions per minute, with a depth of approximately 5–6 cm (2–2.4 inches), while allowing complete chest recoil.

6. Give rescue breaths when trained and equipped to do so

For conventional adult CPR by a trained rescuer, the usual compression-to-ventilation ratio is:

30 compressions : 2 breaths

If the rescuer is unable or unwilling to provide breaths, continuous chest compressions are preferable to doing nothing.

When cardiac arrest occurs, blood flow to the brain and other organs stops. Every minute without effective resuscitation can reduce the chance of survival.

CPR does not replace advanced medical treatment. Instead, it helps maintain circulation until defibrillation, advanced life support and further medical care can be provided.

Another important component of BLS is the Automated External Defibrillator (AED).

An AED is a device that analyzes the heart rhythm and, when appropriate, delivers an electrical shock to help treat certain life-threatening cardiac rhythms.

The AED should be used as soon as it is available.

Basic AED process:

Turn on the AED → Attach the pads → Follow the voice/visual instructions → Allow rhythm analysis → Deliver shock if advised → Immediately resume CPR when instructed.

One important principle is:

Do not delay CPR while waiting for an AED.

If an AED is available, it should be brought to the patient while another rescuer continues CPR.

Another important topic I learned about during the program was choking.

Choking occurs when a foreign object partially or completely blocks the airway.

Food is a common cause, but other objects can also cause airway obstruction.

Recognizing choking

A person with severe airway obstruction may:

– Be unable to speak normally
– Be unable to cough effectively
– Have difficulty breathing
– Become distressed
– Clutch the throat
– Become cyanotic
– Eventually become unconscious

What should we do?

If the person has a mild obstruction and can cough effectively, encourage them to keep coughing and monitor them.

If there is severe airway obstruction, appropriate choking first aid should be provided according to current BLS guidelines and the person’s age.

For a conscious adult or child with severe choking, this generally involves cycles of:

5 back blows → 5 abdominal thrusts

The cycle is repeated until the object is expelled or the person becomes unresponsive.

For pregnant individuals or people where abdominal thrusts are not appropriate, chest thrusts are used instead.

If the person becomes unresponsive:

Lower them safely → Activate emergency response → Start CPR → Look for the object when opening the airway and remove it only if visible.

A rescuer should never perform blind finger sweeps, because this can push the object deeper into the airway.

As dental professionals, we may primarily focus on oral health, but our patients are whole-body patients.

A dental clinic can encounter medical emergencies such as:

– Syncope
– Hypoglycemia
– Anaphylaxis
– Asthma attacks
– Seizures
– Angina
– Myocardial infarction
– Cardiac arrest
– Airway obstruction
– Drug-related emergencies

A patient’s medical history, anxiety, medications and underlying systemic conditions can all influence their risk during dental treatment.

Therefore, a dental professional should not only know how to perform dental procedures but should also be prepared to recognize and respond to medical emergencies.

In a dental clinic, emergency preparedness includes:

– Having a basic emergency kit
– Knowing emergency telephone numbers
– Having an emergency plan
– Maintaining basic life-support skills
– Knowing where emergency equipment is kept
– Having staff trained in emergency response
– Regularly reviewing emergency protocols

BLS training therefore becomes an important part of becoming a confident healthcare professional.

Another topic discussed during the program was snake-bite first aid.

Snake bites can be medical emergencies, particularly when venom is involved.

The first priority is not trying to identify or catch the snake. The priority is keeping the person safe and getting medical help quickly.

What should be done?

1. Move away from the snake

Make sure the victim and rescuers are at a safe distance.

2. Keep the person calm

Anxiety and unnecessary movement can increase circulation and may potentially contribute to faster spread of venom.

3. Keep the bitten limb still

Immobilize the affected limb as much as reasonably possible.

4. Remove tight items

Rings, bracelets, watches or other constricting objects should be removed before swelling develops.

5. Arrange urgent medical transport

The person should be taken to an appropriate healthcare facility as quickly as possible.

What should NOT be done?

Avoid:

– Cutting the bite wound
– Sucking out venom
– Applying ice directly
– Attempting to catch the snake
– Giving alcohol
– Applying tight tourniquets unless specifically directed by an appropriate medical protocol
– Delaying hospital treatment for traditional remedies

The definitive treatment for significant envenomation is medical care, which may include antivenom when clinically indicated, along with monitoring and supportive treatment.

The key message I learned was:

Do not waste valuable time trying to treat the venom at the bite site. Get the patient to medical care.

The most valuable part of the program was the practical learning.

Reading about CPR in a textbook is different from actually performing compressions on a manikin.

During hands-on training, we learned how emergency management requires:

– Quick recognition
– Correct positioning
– Proper chest compression technique
– Team coordination
– Communication
– Staying calm
– Following a systematic sequence

Practical training also helps identify mistakes that may not be obvious while simply reading about CPR.

It reminded me that emergency skills are not something we should learn once and forget.

They require regular practice and refresher training.

Before attending the program, I mainly associated BLS with CPR.

After the session, I realized that emergency response starts much earlier than chest compressions.

It begins with:

Recognizing the emergency → Ensuring safety → Assessing the patient → Calling for help → Starting appropriate intervention → Continuing care until help arrives.

The program also taught me the importance of teamwork.

In a real emergency, one person may call emergency services, another may bring the AED, another may begin CPR, while another manages the surrounding environment.

Good emergency management is therefore not just about individual knowledge.

It is also about communication and coordination.

As a dental intern, I spend a lot of time learning clinical procedures and patient management.

But this BLS program reminded me of something even more fundamental:

Before treating a tooth, we must be prepared to take care of the patient.

A dental professional may encounter a medical emergency unexpectedly.

The patient may be sitting comfortably in the dental chair one moment and become unresponsive the next.

In such a situation, there is no time to search through a textbook.

The response needs to be organized and immediate.

That is why emergency preparedness should become part of clinical practice.

If I had to summarize the entire session into a few points, these would be my biggest takeaways:

1. Stay calm.
Panic can interfere with decision-making.

2. Check scene safety first.
A rescuer should not become another victim.

3. Recognize cardiac arrest early.
An unresponsive person who is not breathing normally requires immediate action.

4. Start CPR promptly.
Good-quality chest compressions are a fundamental part of adult BLS.

5. Use an AED as soon as it is available.
Early defibrillation can be critical in shockable cardiac arrest rhythms.

6. Know how to respond to choking.
Recognizing severe airway obstruction and acting appropriately can be lifesaving.

7. Snake-bite victims need urgent medical care.
Avoid harmful first-aid practices and unnecessary delay.

8. Practice matters.
Emergency skills become more useful when they are practiced regularly.