First Aid and CPR Practice Test (US) 2026: Practice test 2

Practice test 2 of 5 for the First Aid and CPR Practice Test (US): 25 more questions with answers and explanations.

First aid
United States
120 questions
Checked October 10, 2026

Question 1 of 25
You are giving CPR to a person with obesity. What do the 2025 AHA guidelines say?
- Push on the belly instead of the chest to avoid the ribs
- Give rescue breaths only, because compressions will not work
- Use gentler, shallower compressions than for other adults
- Use standard technique, pushing harder if needed to reach the right depth
Show answer
Answer: D. Use standard technique, pushing harder if needed to reach the right depth
Use standard CPR technique and consider more force to reach adequate depth.
Question 2 of 25
What changed about the Chain of Survival in the 2025 AHA guidelines?
- One Universal Chain of Survival now covers adults and children
- The Chain of Survival was removed from the guidelines
- The chain now starts with giving rescue breaths first
- There are now separate chains for every age group
Show answer
Answer: A. One Universal Chain of Survival now covers adults and children
The 2025 guidelines use a single Universal Chain of Survival for pediatric and adult cardiac arrest.
Question 3 of 25
When you begin CPR on an adult in cardiac arrest, what do you start with?
- Two rescue breaths
- A pulse check for 1 minute
- Sitting the person up
- Chest compressions
Show answer
Answer: D. Chest compressions
CPR for lay rescuers starts with chest compressions, then adds breaths if you are trained and willing.
Question 4 of 25
In CPR guidelines, who counts as an infant?
- A child younger than about 5 years, before school starts
- A child younger than about 3 years, including toddlers
- Any child who is still too young to walk on their own
- A baby younger than about 1 year, not counting newborns
Show answer
Answer: D. A baby younger than about 1 year, not counting newborns
Infants are younger than about 1 year, not counting newly born babies.
Question 5 of 25
For CPR, when should you treat a young person as an adult instead of a child?
- Once they can talk
- Once they weigh more than 50 pounds (about 23 kg)
- On their 8th birthday
- Once they show signs of puberty
Show answer
Answer: D. Once they show signs of puberty
Child CPR applies from about 1 year until puberty. After puberty, use adult CPR.
Question 6 of 25
How deep should chest compressions be for an infant?
- About 1.5 inches (4 cm), at least one-third of the chest depth
- About 2.4 inches (6 cm), the same as for an adult
- About 3 inches (7.5 cm), half the depth of the chest
- About 0.5 inch (1 cm), just enough to see the chest move
Show answer
Answer: A. About 1.5 inches (4 cm), at least one-third of the chest depth
Push at least one-third of the chest depth, about 1.5 inches (4 cm) for infants.
Question 7 of 25
How deep should chest compressions be for a child?
- About 4 inches (10 cm), as deep as you can go
- About 1 inch (2.5 cm), one-tenth of the chest depth
- About 2 inches (5 cm), at least one-third of the chest depth
- About 3 inches (7.5 cm), half of the chest depth
Show answer
Answer: C. About 2 inches (5 cm), at least one-third of the chest depth
For children, push at least one-third of the chest depth, about 2 inches (5 cm).
Question 8 of 25
Which infant compression technique did the 2025 AHA guidelines stop recommending?
- The two-finger technique
- Compressions on a firm surface
- The heel of one hand
- The two-thumb encircling-hands technique
Show answer
Answer: A. The two-finger technique
Use the heel of one hand or the two-thumb encircling-hands technique. The two-finger technique is no longer recommended.
Question 9 of 25
You cannot wrap your hands around an infant's chest. Which compression technique should you use?
- The heel of one hand
- Two fingers
- The heels of both hands
- Your fist
Show answer
Answer: A. The heel of one hand
If you cannot encircle the chest, use the heel of one hand on the breastbone.
Question 10 of 25
What compression-to-breath ratio does a single rescuer use for a child or infant?
- 5:1
- 30:2
- 3:1
- 15:1
Show answer
Answer: B. 30:2
A single rescuer uses 30:2. Two rescuers, usually health care providers, use 15:2.
Question 11 of 25
Why are rescue breaths encouraged when giving CPR to children and infants?
- Children's chests are too small and soft to receive any compressions
- Breaths replace the need to call 911 for a child
- Breaths are easier to give than compressions for a child
- Breaths plus compressions improve survival in children and infants
Show answer
Answer: D. Breaths plus compressions improve survival in children and infants
For out-of-hospital cardiac arrest in infants and children, breaths plus compressions improve survival.
Question 12 of 25
You are unable or unwilling to give breaths to a child in cardiac arrest. What should you do?
- Do nothing until EMS arrives and takes over
- Shake the child firmly to try to wake them before trying anything else
- Give compression-only CPR rather than doing nothing
- Give breaths only, even though you are unwilling
Show answer
Answer: C. Give compression-only CPR rather than doing nothing
Compression-only CPR is reasonable if a lay rescuer cannot give breaths.
Question 13 of 25
An AED for a 4-year-old has pediatric pads or a pediatric setting available. What should you do?
- Wait to use the AED until the paramedics arrive
- Do not use an AED at all on a child this young
- Use the adult pads, because they give a stronger and more useful shock
- Use the pediatric pads or setting, because the child is under 8
Show answer
Answer: D. Use the pediatric pads or setting, because the child is under 8
For infants and children under 8, use a pediatric attenuator and pediatric pads if available.
Question 14 of 25
No pediatric pads are available for a 3-year-old in cardiac arrest. What should you do?
- Use the adult pads, making sure they do not touch
- Place both pads side by side on the belly
- Do not use the AED until child pads arrive
- Cut the adult pads in half with scissors so they fit the small chest
Show answer
Answer: A. Use the adult pads, making sure they do not touch
Use the largest pads that fit while keeping good separation. Placing one pad on the front and one on the back can help.
Question 15 of 25
Pad 1 in the diagram goes on an adult's bare chest. Where?
- On the upper right chest, just below the collarbone
- On the right side of the neck
- On the belly button
- On the upper left chest, directly over the heart and the left nipple
Show answer
Answer: A. On the upper right chest, just below the collarbone
In the usual position, one pad goes on the upper right chest below the collarbone.
Question 16 of 25
Where does pad 2 go?
- On the lower right side of the belly, just above the right hip
- On the top of the left shoulder
- On the left upper arm
- On the lower left side of the chest, below the armpit
Show answer
Answer: D. On the lower left side of the chest, below the armpit
The second pad goes on the lower left side so the shock crosses the heart.
Question 17 of 25
Besides the front-and-side position, what other AED pad position do the AHA guidelines allow?
- One pad on each thigh, just above the knees
- One pad on the front of the chest and one on the back
- Both pads side by side in the middle of the back
- Both pads on the same upper arm, one above the other
Show answer
Answer: B. One pad on the front of the chest and one on the back
Pads may be placed anterolateral (front and side) or anteroposterior (front and back).
Question 18 of 25
The person is wearing a bra that is in the way of an AED pad. What can you do?
- Skip the AED and keep doing CPR only
- Place the pad directly on top of the bra fabric
- Put the pad on the belly below the bra instead
- Move the bra aside instead of removing it, if the pad then fits
Show answer
Answer: D. Move the bra aside instead of removing it, if the pad then fits
The guidelines note a bra can be adjusted rather than removed to place the pads on bare skin.
Question 19 of 25
The AED is analyzing the rhythm or about to deliver a shock. What should everyone do?
- Lift the person's head
- Hold the person's hand so they know someone is with them
- Stay clear and not touch the person
- Keep giving compressions
Show answer
Answer: C. Stay clear and not touch the person
Touching the person can affect the analysis and is unsafe during a shock.
Question 20 of 25
The AED has just delivered a shock to an adult. What is your next step?
- Remove the AED pads so they do not get in the way
- Check the pulse at the neck for a full minute
- Resume chest compressions right away
- Wait 2 minutes before doing anything else
Show answer
Answer: C. Resume chest compressions right away
Resume compressions immediately after a shock and follow the AED prompts.
Question 21 of 25
An AED is on its way but not there yet. What should you do?
- Give CPR until the AED arrives and is applied
- Give only rescue breaths
- Leave to find the AED yourself and stop CPR for 5 minutes
- Wait for the AED before starting anything
Show answer
Answer: A. Give CPR until the AED arrives and is applied
CPR is recommended until a defibrillator or AED is applied.
Question 22 of 25
An adult is choking but is coughing forcefully. What should you do?
- Give abdominal thrusts right away to clear the airway
- Give them a glass of water so they can wash the food down their throat
- Do a finger sweep to try to find the object
- Let them keep coughing and watch for signs it is getting worse
Show answer
Answer: D. Let them keep coughing and watch for signs it is getting worse
With a mild obstruction, let the person cough and watch for signs of severe obstruction.
Question 23 of 25
A person clutches their throat and cannot speak or cough. What does this usually mean?
- They have a bad sore throat from a cold
- They are asking for a drink of water
- Their airway is blocked and they cannot breathe
- They are about to sneeze or cough hard and need some space
Show answer
Answer: C. Their airway is blocked and they cannot breathe
Clutching the throat and being unable to speak or cough are signs of severe choking.
Question 24 of 25
Under the 2025 AHA guidelines, how should you help an adult with severe choking?
- A slap on the face to make the person cough harder
- 30 chest compressions while the person is still standing up
- 5 back blows, then 5 abdominal thrusts, repeated until the object comes out
- Abdominal thrusts only, as many as needed, with no back blows
Show answer
Answer: C. 5 back blows, then 5 abdominal thrusts, repeated until the object comes out
Severe choking in adults: repeated cycles of 5 back blows followed by 5 abdominal thrusts.
Question 25 of 25
What should you do about 911 when an adult has severe choking?
- Activate the emergency response system (call 911)
- Call 911 only if the object is still stuck after 20 minutes
- Never call 911 for choking
- Call 911 only if the person dies
Show answer
Answer: A. Activate the emergency response system (call 911)
The guidelines say to activate the emergency response system for severe airway obstruction.

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