Objective. Students perform adult CPR/AED and basic first aid skills appropriate to shop emergencies—fuel burns, eye contamination, laceration, and carbon monoxide exposure—at the level required for a recognized first aid/CPR certification.
This lesson, its worked examples and its practice questions has not yet been verified by a certified examiner or master technician in the trade or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.
VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.
Small engine shops combine hazards that rarely appear together in other workplaces: flammable fuels, rotating blades, pressurized systems, chemical solvents, battery acid, and internal combustion exhaust—all in a space that may be smaller than a classroom. When something goes wrong, emergency medical services may be minutes away. Your ability to act correctly in the first few minutes can be the difference between a minor injury and a life-altering outcome. This lesson prepares you to respond to the four most likely shop emergencies and to meet the standard required for a recognized CPR/AED certification card.
Cardiac arrest can happen to a coworker, a customer, or you. Bystander CPR performed immediately roughly doubles or triples the chance of survival before paramedics arrive. The American Red Cross and the American Heart Association (AHA) both teach a chain of survival that begins the moment you recognize an emergency.
Recognize and activate. If a person is unresponsive and not breathing normally, shout for help and call 911—or direct someone specific to call. Do not leave the patient alone if you can avoid it.
Start chest compressions. Place the heel of one hand on the center of the chest (lower half of the sternum), cover with your other hand, and press down at least 2 inches at a rate of 100–120 compressions per minute. Allow full chest recoil between compressions. Minimize interruptions.
Compression-only CPR is appropriate if you are untrained in rescue breaths or unwilling to give them; it is effective for the first few minutes. A trained rescuer adds rescue breaths at a 30:2 ratio (30 compressions, then 2 breaths of about 1 second each, enough to see the chest rise).
AED use. An automated external defibrillator (AED) analyzes heart rhythm and delivers a shock if needed. Power it on and follow the voice prompts—the device guides you step by step. Attach pads to bare skin: one below the right collarbone, one on the left side below the armpit. Clear the patient before the shock. Resume compressions immediately after the shock. AED trainers used in this course simulate the process without delivering real electricity.
Fuel, battery acid, carburetor cleaner, and parts-washing solvents can cause permanent eye damage within seconds. OSHA and ANSI standards require a plumbed or self-contained eyewash station to be immediately accessible (typically within ten seconds of travel) wherever corrosive or injurious materials are used.
Three-step eyewash procedure:
1. Activate the station immediately—do not waste time removing contacts first; flush them out.
2. Hold eyelids open with your fingers and roll your eyes to rinse all surfaces. Flush continuously for a minimum of 15 minutes for chemical splash. A timer or a partner watching the clock helps ensure full duration.
3. Seek medical evaluation after flushing, even if symptoms seem to have resolved.
Check the station's inspection tag each time you use that area. ANSI Z358.1 requires weekly activation checks and documented inspections. If the tag is out of date or the station is not working, report it before starting work.
Gasoline and two-stroke mix can ignite and cause thermal burns; even without ignition, prolonged skin contact causes chemical irritation. For a fuel burn:
Rotating blades, sharp-edged cooling fins, and snap-ring pliers create laceration risks. Standard bleeding control follows a simple sequence:
1. Apply direct pressure with a clean cloth or sterile dressing; maintain firm, uninterrupted pressure for at least 5–10 minutes.
2. Elevate the injured limb above heart level if possible and if no fracture is suspected.
3. Add dressings if blood soaks through—do not remove the first dressing, add on top.
4. Call 911 for spurting blood, inability to control bleeding after 10 minutes, or suspected deep tendon or vessel injury.
5. Use nitrile gloves from the first aid kit to protect yourself from bloodborne pathogens (OSHA Bloodborne Pathogens Standard applies in training environments).
Carbon monoxide (CO) is an odorless, colorless gas produced by any internal combustion engine. Running engines indoors—even briefly—can produce lethal concentrations. Symptoms of CO poisoning include headache, dizziness, nausea, confusion, and loss of consciousness. CO is dangerous because the early symptoms mimic flu and workers may not recognize the danger.
Response steps:
1. Move the victim to fresh air immediately. Do not re-enter the area without respiratory protection rated for CO.
2. Call 911. Even if the person seems to recover, CO binds to hemoglobin and medical evaluation with possible hyperbaric oxygen may be required.
3. Do not start engines in enclosed or poorly ventilated spaces. Keep overhead doors fully open and use exhaust extraction hoses when running engines for diagnosis.
A useful rule: call 911 when in doubt. Always call for unconsciousness, cardiac arrest, severe burns, uncontrolled bleeding, suspected CO poisoning, electric shock, suspected spinal injury, or any situation that exceeds your training. While waiting, stay on the line—dispatchers provide real-time guidance.
Before performing first aid on someone injured by equipment, confirm the machine is off and immobilized—a running engine puts both of you at risk. Don nitrile gloves before contact with blood or body fluids. Safety glasses should already be on in the shop; keep them on during any fluid flush situation.
Answer each question, then check it. Nothing is recorded; this is your own practice.
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