Basic Life Support (BLS) and Cardiopulmonary Resuscitation (CPR)

This lesson focuses on Basic Life Support (BLS) and Cardiopulmonary Resuscitation (CPR) techniques, equipping phlebotomists with the knowledge and skills to respond effectively to cardiac emergencies. You will learn how to perform CPR on adults, children, and infants, utilize an Automated External Defibrillator (AED), and understand the crucial Chain of Survival.

Learning Objectives

  • Participants will demonstrate proficiency in performing high-quality CPR on adult, child, and infant manikins.
  • Participants will correctly operate an AED, including pad placement and following voice prompts.
  • Participants will articulate the steps of the Chain of Survival and its importance in improving survival rates.
  • Participants will pass a BLS/CPR certification examination from a recognized organization (e.g., American Heart Association, American Red Cross).

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Lesson Content

Understanding the Cardiac Emergency

A cardiac emergency occurs when the heart stops beating effectively, leading to a cessation of blood flow to the brain and other vital organs. This can result from various underlying conditions, such as heart attack, stroke, or electrical disturbances. Recognizing the signs and symptoms, such as sudden collapse, unresponsiveness, and absence of breathing or abnormal breathing (gasping), is crucial for initiating a rapid response.

  • Signs of a Cardiac Emergency: Sudden collapse, Unresponsiveness, Absence of breathing or abnormal breathing (gasping), No pulse.

  • The Golden Hour: The first hour after a cardiac arrest is the most critical for survival. Prompt CPR and defibrillation are vital. Every minute that CPR and defibrillation are delayed decreases the chance of survival. After 10 minutes of delay, chances of survival are dramatically reduced.

The Chain of Survival

The Chain of Survival represents a series of critical actions that increase the likelihood of survival from cardiac arrest. Each link in the chain is essential, and any break weakens the chain. The links are:

  1. Early Recognition & Activation of Emergency Response System: Recognizing cardiac arrest and immediately calling for help (911 or local emergency number).
  2. Early CPR: Providing chest compressions and rescue breaths to circulate blood and oxygen until professional help arrives.
  3. Rapid Defibrillation: Using an AED to deliver an electrical shock to restore a normal heart rhythm if needed.
  4. Effective Advanced Life Support: Providing advanced medical care by paramedics or other healthcare professionals.
  5. Post-Cardiac Arrest Care: Providing care after the return of spontaneous circulation (ROSC), including stabilizing the patient, ongoing monitoring, and rehabilitation.
  • Example: A patient collapses in a phlebotomy chair. The phlebotomist immediately recognizes the signs of cardiac arrest (unresponsiveness, no breathing), calls 911 (first link), and begins CPR (second link) while a colleague retrieves the AED (third link).

CPR Techniques: Adults, Children, and Infants

CPR involves providing chest compressions and rescue breaths to circulate blood and oxygen to vital organs. The techniques vary slightly based on age. It is important to emphasize that high-quality CPR is the most important factor in increasing survival rates.

  • Adult CPR:
    • Chest Compressions: Place the heel of one hand on the center of the chest (lower half of the sternum). Place the other hand on top. Compress the chest at least 2 inches (5 cm) at a rate of 100-120 compressions per minute. Allow for full chest recoil.
    • Rescue Breaths: After 30 compressions, give two rescue breaths. Open the airway with the head-tilt/chin-lift maneuver. Seal your mouth over the person's mouth and blow for about one second each, observing the chest rise.
  • Child CPR (1 year to puberty):
    • Chest Compressions: Use one or two hands (depending on the child's size) on the center of the chest, similar to the adult technique, compressing about 2 inches (5 cm). The compression rate and the ratio of compressions to breaths are the same as for adults.
    • Rescue Breaths: After 30 compressions, give two rescue breaths, just like with adults, but with a smaller volume of air.
  • Infant CPR (under 1 year):
    • Chest Compressions: Use two fingers (index and middle) to compress the chest just below the nipple line. Compress about 1.5 inches (4 cm) at a rate of 100-120 compressions per minute.
    • Rescue Breaths: Cover the infant's mouth and nose with your mouth and give gentle breaths for about one second each, observing chest rise.
  • Important considerations: The rate of chest compressions is similar for all ages. Minimize interruptions in compressions.

Using the Automated External Defibrillator (AED)

An AED analyzes the heart rhythm and, if necessary, delivers an electrical shock to restore a normal heartbeat. The steps for using an AED are:

  1. Turn on the AED and follow the voice prompts.
  2. Expose the chest and attach the pads. Place one pad on the upper right chest and the other on the lower left side of the chest (or according to the pad diagram).
  3. Ensure everyone is clear and the AED analyzes the heart rhythm.
  4. If a shock is advised, push the shock button (if the AED is not fully automated).
  5. Immediately resume CPR after the shock (or if no shock is advised) starting with chest compressions.
  6. Continue CPR and follow the AED prompts until help arrives or the person shows signs of life.
  • Important Points:
    • AEDs are designed to be user-friendly with clear voice prompts.
    • Do not touch the person while the AED is analyzing or delivering a shock.
    • AEDs should be used in conjunction with CPR.
    • The AED pads should be correctly placed to ensure that the electrical current can travel to the heart effectively.
    • If the AED recommends no shock, continue CPR. Even if the AED recommends a shock, after administering it, continue CPR without pause.
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