20250529 CTST MTR E07

First Aid Principles and Basic Life Support

Overview of Previous Lessons

• The previous lesson covered NR7, which includes the Occupational Health Medical Control Program (PCMSO), mandated by employers and overseen by a designated medical coordinator.

• Discussed the types of occupational medical exams required under PCMSO: admission, periodic, change of function, return to work, and dismissal exams.

• Emphasized that companies must have first aid materials available in specific areas and managed by trained personnel.

Introduction to First Aid

• Today's focus is on first aid principles; specifically, basic life support structured into five steps for educational purposes.

• Objectives include understanding basic life support and immediate response maneuvers before diving into detailed steps.

Definition of First Aid

• First aid encompasses immediate measures taken to prevent worsening health conditions before specialized treatment begins.

• Key terms in this definition are "immediate" and "worsening," highlighting the importance of prompt action in emergencies.

Characteristics of a Rescuer

• A rescuer should be trained in basic life support techniques; formal training is essential for effective assistance.

• Essential traits include:

• Solidarity: Willingness to help others.

• Improvisation: Ability to adapt when necessary resources are unavailable.

• Quick Decision-Making: Making fast yet informed choices during emergencies.

Important Information for Emergency Response

• When assisting someone in distress, gather critical information for emergency services:

• Type of emergency (e.g., choking, fall).

• Victim's age, gender, and current condition (conscious or unconscious).

• Location details for responders' ease ( location specifics).

• Contact information for follow-up communication with emergency teams.

First Aid Steps Overview

Introduction to First Aid Steps

• The speaker emphasizes the importance of involving responsible individuals at the workplace, such as managers or supervisors, when administering first aid.

• First aid is structured around five critical steps, each dependent on the previous one.

Step 1: Airway Management

• The first step focuses on ensuring airway patency and cervical control; checking if the person is breathing and if their respiration is compromised.

• If breathing is absent, it leads to assessing circulation in the next step.

Step 2: Breathing Assessment

• The second step involves evaluating whether the individual is breathing spontaneously. If not, immediate action for respiratory resuscitation is required.

• Signs of consciousness and speech indicate good airflow; absence suggests potential unconsciousness or obstruction.

Step 3: Circulation Check

• This step assesses heart rate and checks for any signs of hemorrhage after confirming breathing status.

• If no heartbeat is detected, cardiopulmonary resuscitation (CPR) must be initiated immediately.

Detailed Examination of Each Step

Airway Obstruction Recognition

• The speaker describes a scenario where an individual may be choking and demonstrates a technique called "Helmet maneuver" to relieve airway obstruction.

Breathing Techniques

• Proper positioning during mouth-to-mouth resuscitation includes tilting the head back slightly while sealing lips to prevent air escape through the nose.

Circulatory Evaluation Methods

• Checking for pulse can be done via carotid or radial arteries; absence indicates a need for immediate CPR intervention.

Causes of Cardiac Arrest

• Various causes of cardiac arrest are discussed including myocardial infarction, electric shock, poisoning, or severe accidents.

This structured approach provides clarity on essential first aid procedures that can save lives in emergencies.

Understanding Cardiac Massage Techniques

Anatomy and Positioning for Cardiac Massage

• The external part of the rib cage contains cartilage that allows flexibility during movement, crucial for effective cardiac massage. The heart is located beneath the sternum, with its apex pointing to the left side.

• It is essential to focus on the middle third of the sternum for cardiac massage; massaging too low risks breaking the xiphoid process, while massaging too high could fracture the clavicle.

• Proper hand positioning involves interlocking fingers without touching the ribs to avoid compromising the massage's effectiveness. The weight of your body should be applied directly onto the chest of an adult patient. For children and infants, different techniques are required.

Performing Cardiac Massage

• Begin cardiac massage at a rate of approximately 100 compressions per minute, which translates to nearly two compressions per second. After 30 compressions, perform two rescue breaths if alone; otherwise, alternate with another person performing breaths while you continue compressions.

• Continue these alternating actions until professional medical help arrives or until there are signs of recovery in the patient. This method ensures continuous support for someone experiencing cardiac arrest.

Managing Hemorrhage

Types and Detection

• Hemorrhages can be classified as arterial or venous and can occur internally or externally; external hemorrhages are easier to detect visually compared to internal ones which may present symptoms like pallor or fainting.

• For external bleeding management: apply pressure with a clean cloth without removing it once placed, as this helps coagulate blood and prevent further loss by maintaining elevation of the affected area.

Internal Hemorrhage Response

• Signs of internal bleeding include rapid pulse, cold skin due to reduced blood flow, excessive sweating, nausea, and vomiting; immediate action includes keeping the person lying down and warm while elevating their legs if possible. Emergency assistance should be sought promptly.

Neurological Assessment Post-Injury

Evaluating Neurological Function

• Following any incident leading to potential brain injury (e.g., stroke), assess neurological function by checking muscle strength through hand squeezes and observing for paralysis or pupil dilation which may indicate serious conditions like cerebral hemorrhage or stroke (AVC).

• If a patient cannot lift an arm or leg upon request or shows unequal pupil sizes when light is shone into their eyes, these are critical indicators requiring urgent medical evaluation.

General Examination Procedures

Assessing Injuries

• Conduct a thorough examination for injuries such as contusions, strains, fractures, burns etc., ensuring minimal manipulation around suspected areas while immobilizing them appropriately to prevent further damage during transport or treatment efforts.

First Aid Basics and Life Support Techniques

Importance of Keeping Victims on the Ground

• It is crucial to keep an injured person on the ground, as instinct may lead bystanders to move them due to discomfort with the hard surface.

• The ground is actually the best place for performing cardiac massage and elevating legs if there is suspected hemorrhage.

• Avoid manipulating the victim until professional help arrives; this minimizes further injury.

Overview of First Aid Concepts

• The concept of first aid revolves around immediate care aimed at preventing further deterioration of a victim's condition after an accident.

• Basic life support (BLS) is divided into five key steps: Airway, Breathing, Circulation, Disability, and Exposure.

Steps in Basic Life Support (BLS)

1. Airway: Assessing airway patency to ensure it is clear for breathing.

2. Breathing: Evaluating if the victim is breathing; if not, initiate respiratory resuscitation immediately.

3. Circulation: Checking for signs of circulation such as heartbeat and bleeding; if absent, proceed with cardiac resuscitation.

4. Disability: Conducting a neurological assessment to determine consciousness level and check for paralysis or pupil dilation.

5. Exposure: Performing a general examination for fractures, wounds, dislocations, or sprains while minimizing movement of the injured person.