Occupational First Aid Level 1 (OFA Level 1) — Questions and Answers

Question 1: During two-rescuer CPR, the second rescuer arrives and takes over compressions. What should the compressor change be timed with?

Every 2 minutes or after 5 cycles of CPR (Correct answer)
Only when the AED prompts a rhythm check
Every 10 cycles of compressions
Every 5 minutes or when the compressor feels tired

Correct answer: Every 2 minutes or after 5 cycles of CPR

Rescuers should switch compressor roles every 2 minutes (5 cycles) to prevent fatigue and maintain high-quality compressions.

Question 2: Under OSHA regulations, what is the PRIMARY purpose of maintaining a workplace first aid log?

To track recordable incidents and support workplace safety improvements (Correct answer)
To determine workers' compensation eligibility
To provide evidence in personal injury lawsuits
To satisfy insurance audit requirements only

Correct answer: To track recordable incidents and support workplace safety improvements

OSHA requires incident logs to identify hazard patterns and drive safety improvements in the workplace.

Question 3: A worker in cardiac arrest is soaked from working in the rain. What must the rescuer do before using the AED?

Dry the worker's chest before attaching the pads (Correct answer)
Move the worker inside before applying the AED
Wrap the pads in plastic to prevent short-circuiting
Use the AED without modification — water does not affect pad adhesion

Correct answer: Dry the worker's chest before attaching the pads

A wet chest can prevent pad adhesion and conduct electricity to bystanders; quickly drying the chest before pad placement is essential.

Question 4: Which of the following wounds should always be referred to a physician for evaluation rather than managed by the first aider alone?

A deep wound that may require sutures, is heavily contaminated, or involves the face, hands, or joints (Correct answer)
A minor paper cut that stopped bleeding with light pressure
A superficial 1 cm abrasion on the forearm
A small blister from a friction injury

Correct answer: A deep wound that may require sutures, is heavily contaminated, or involves the face, hands, or joints

Deep lacerations, heavily contaminated wounds, or injuries involving critical areas (face, hands, joints) require medical assessment for suturing, infection prevention, and functional preservation.

Question 5: When using an AED in the workplace, which of the following statements is TRUE?

You must confirm a pulse is absent before attaching the AED pads
The AED will automatically deliver a shock without any user intervention
The AED analyzes the heart rhythm and instructs the user when a shock is needed (Correct answer)
The AED should only be used by trained medical personnel

Correct answer: The AED analyzes the heart rhythm and instructs the user when a shock is needed

AEDs analyze the patient's heart rhythm and provide audio/visual instructions, including whether a shock is needed.

Question 6: How deep should chest compressions be for an adult during CPR?

3 to 4 inches
At least 2 inches but no more than 2.4 inches (Correct answer)
As deep as possible
1 to 1.5 inches

Correct answer: At least 2 inches but no more than 2.4 inches

Adult chest compressions should be at least 2 inches but no more than 2.4 inches to be effective without causing excessive injury.

Question 7: Which regulatory requirement is UNIVERSAL across all Occupational First Aid Certification practice settings?

Limiting services to local jurisdictions
Maintaining current certification and continuing education (Correct answer)
Using specific proprietary software
Working exclusively during business hours

Correct answer: Maintaining current certification and continuing education

Maintaining current certification and continuing education is a universal regulatory requirement.

Question 8: Which of the following workplace injuries requires IMMEDIATE activation of emergency services (911)?

An employee who is unconscious and unresponsive (Correct answer)
A minor cut requiring a bandage
A sprained ankle with mild swelling
A small chemical splash to the forearm

Correct answer: An employee who is unconscious and unresponsive

An unconscious and unresponsive worker indicates a life-threatening condition requiring immediate EMS activation.

Question 9: Which of the following is NOT a recommended action for treating a minor wound?

Remove deeply embedded objects (Correct answer)
Clean with water and mild soap.
Apply a clean dressing.
Apply an antibiotic ointment.

Correct answer: Remove deeply embedded objects

For minor wounds, cleaning, dressing, and applying antibiotic ointment are appropriate steps. However, deeply embedded objects should never be removed by a first aid responder, as this can cause further damage, increased bleeding, or introduce infection. Such objects should be stabilized and left for medical professionals to remove.

Question 10: Which splinting material is most appropriate for improvised use at a worksite when commercial splints are unavailable?

Wet towels wrapped around the limb
Rigid materials such as boards or rolled magazines combined with padding (Correct answer)
Tight tape without padding
Soft foam only

Correct answer: Rigid materials such as boards or rolled magazines combined with padding

Rigid improvised materials like boards or magazines provide stability similar to commercial splints when padded and secured properly.

Question 11: When conducting a risk assessment for OFA operations, which factor should receive the HIGHEST priority?

Convenience for daily operations
Cost of implementing safety measures
Probability and severity of potential harm (Correct answer)
Time required for safety training

Correct answer: Probability and severity of potential harm

The probability and severity of potential harm are the primary factors in risk assessment.

Question 12: What is the danger of using a rubber band or thin cord as a makeshift tourniquet?

It cannot be secured tightly enough on large limbs
It may cut into tissue and damage nerves and blood vessels without stopping deep arterial bleeding (Correct answer)
It is too wide to be effective
It will loosen too quickly in field conditions

Correct answer: It may cut into tissue and damage nerves and blood vessels without stopping deep arterial bleeding

Thin improvised tourniquets concentrate pressure on a small area, cutting into skin and nerves while failing to compress deep arteries adequately.

Question 13: When using a bag-valve-mask (BVM) for rescue breathing, what indicates an appropriate tidal volume has been delivered?

Exactly 1 liter of air per breath
A full 2 seconds of forceful ventilation
The bag is squeezed completely flat
Visible, gentle chest rise (Correct answer)

Correct answer: Visible, gentle chest rise

Delivering just enough volume to produce visible chest rise avoids over-inflation, which can force air into the stomach and cause regurgitation.

Question 14: A secondary survey is MOST appropriately performed:

Only by paramedics on scene
Simultaneously with the primary survey
Before calling for emergency services
After life-threatening conditions have been addressed in the primary survey (Correct answer)

Correct answer: After life-threatening conditions have been addressed in the primary survey

The secondary survey (head-to-toe assessment) only begins after the primary survey has identified and managed immediate life threats.

Question 15: What is the first step in controlling external bleeding?

Apply a tourniquet immediately.
Apply direct pressure to the wound (Correct answer)
Check for signs of infection.
Clean the wound with water.

Correct answer: Apply direct pressure to the wound

The most immediate and effective first step in controlling external bleeding is to apply firm, direct pressure directly onto the wound with a clean dressing or cloth. This pressure helps to compress the blood vessels and promote clotting, thereby reducing blood loss.

Question 16: When a partially avulsed piece of skin or tissue is present, what should the first aider do with it?

Leave the tissue exposed to air to dry
Cut away the flap to clean the wound
Discard the tissue in a biohazard bag
Gently reposition the flap and cover with a moist sterile dressing (Correct answer)

Correct answer: Gently reposition the flap and cover with a moist sterile dressing

Partially avulsed tissue may be reattached surgically; repositioning it gently and keeping it moist preserves viability during transport.

Question 17: What information should you give when calling emergency services?

Hang up after dialing.
Only say someone is hurt.
Wait until EMS arrives to call.
Provide detailed scene and injury information (Correct answer)

Correct answer: Provide detailed scene and injury information

When calling emergency services, providing clear and detailed information about the location, the nature of the emergency, the number of victims, and any observed injuries helps dispatchers send the appropriate resources. This crucial information allows EMS to prepare and arrive with the necessary equipment and personnel, improving the chances of a positive outcome.

Question 18: A worker shows signs of anaphylaxis after a bee sting: hives, throat swelling, and difficulty breathing. The OFA attendant should:

Apply ice to the sting site and have the worker lie still
Administer epinephrine (EpiPen) if available and call 911 (Correct answer)
Offer the worker antihistamine tablets and monitor for 30 minutes
Give the worker water and keep them calm until symptoms pass

Correct answer: Administer epinephrine (EpiPen) if available and call 911

Anaphylaxis is a life-threatening emergency requiring epinephrine and immediate EMS activation.

Question 19: Which fracture type is MORE common in older workers due to reduced bone density?

Osteoporotic (fragility) fracture from minimal trauma (Correct answer)
Stress fracture
Growth plate fracture
Greenstick fracture

Correct answer: Osteoporotic (fragility) fracture from minimal trauma

Older workers with reduced bone density (osteoporosis) are at higher risk of fragility fractures that occur from minimal force or even normal activities.

Question 20: What is the PRIMARY purpose of a workplace Safety Data Sheet (SDS) in the context of first aid?

To document injured workers for insurance claims
To outline evacuation routes and assembly points
To list all employees who are trained in first aid
To provide first aiders with hazard and emergency treatment information for chemical exposures (Correct answer)

Correct answer: To provide first aiders with hazard and emergency treatment information for chemical exposures

Section 4 of an SDS contains first aid measures specific to chemical exposure, guiding responders on appropriate treatment.

Question 21: What indicates that a splint is too tight after application?

Patient reports the splint feels secure
Patient is able to feel light touch beyond the splint
Fingers or toes become pale, cold, or numb distal to the splint (Correct answer)
Patient reports mild discomfort at the fracture site

Correct answer: Fingers or toes become pale, cold, or numb distal to the splint

Pallor, coldness, or numbness distal to a splint indicates compromised circulation and requires immediate loosening.

Question 22: Which documentation practice BEST demonstrates regulatory compliance for OFA certified professionals?

Maintaining organized, dated, and signed records of all activities (Correct answer)
Keeping informal handwritten notes
Relying on memory for routine procedures
Filing documents only when audited

Correct answer: Maintaining organized, dated, and signed records of all activities

Organized, dated, and signed records demonstrate systematic regulatory compliance.

Question 23: A factory worker's fingertip is completely amputated. How should the amputated part be transported to the hospital?

Leave it at the scene; reattachment is not possible
Place it directly in a bag of ice water
Wrap it in a moist sterile gauze, place in a sealed plastic bag, and keep cool near ice without direct contact (Correct answer)
Soak it in saline for 30 minutes before transport

Correct answer: Wrap it in a moist sterile gauze, place in a sealed plastic bag, and keep cool near ice without direct contact

Amputated parts are wrapped in moist sterile gauze, sealed in a plastic bag, and kept cool but not frozen to preserve tissue viability for possible reimplantation.

Question 24: A worker splashes a corrosive chemical in their eyes. The OFA responder's first priority is to:

Rub the eyes to dislodge the chemical quickly
Flush the eyes with large amounts of clean water for at least 15–20 minutes (Correct answer)
Apply an eye patch and wait for medical help
Neutralize the chemical with the opposite pH substance

Correct answer: Flush the eyes with large amounts of clean water for at least 15–20 minutes

Immediate and prolonged eye irrigation with water for at least 15–20 minutes is the standard first aid for chemical eye exposure.

Question 25: What is the purpose of allowing full chest recoil between compressions during CPR?

To give the patient time to breathe spontaneously
To prevent rescuer fatigue
To reduce the risk of rib fractures
To allow the heart to refill with blood (Correct answer)

Correct answer: To allow the heart to refill with blood

Full chest recoil allows the heart chambers to refill with blood, which is then pumped forward with the next compression.

Occupational First Aid Level 1 (OFA Level 1)

The OFA Level 1 certification provides basic first aid skills for workplace emergencies, focusing on immediate life-saving interventions.

Questions

30 min

Time Limit

70%

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