First Aid and CPR Practice Test (US) 2026: Test de práctica 4

Test de práctica 4 de 5 de First Aid and CPR Practice Test (US): 25 preguntas más con respuestas y explicaciones.

Primeros auxilios
Estados Unidos
120 preguntas
Revisado el 10 de octubre de 2026

Pregunta 1 de 25
Should you use ice or an ice pack to cool a burn?
- Yes, as long as the ice is wrapped in a plastic bag
- No, ice can make the injury worse
- Yes, ice works best
- Yes, but only on large burns
Ver respuesta
Respuesta: B. No, ice can make the injury worse
Do not use ice, including ice packs or bags, because it can worsen the injury.
Pregunta 2 de 25
Why should you avoid cooling a burn for much longer than recommended, beyond about 40 minutes?
- Water stops having any effect after the first 10 minutes
- It can make the person too cold (hypothermia)
- It makes the burn spread
- It causes infection right away
Ver respuesta
Respuesta: B. It can make the person too cold (hypothermia)
Avoid cooling beyond 40 minutes because of the risk of hypothermia.
Pregunta 3 de 25
No running water is available for a burn. What can you use instead?
- A hot, damp towel wrapped around the burn
- A bag of frozen peas pressed on bare skin
- Butter or cooking oil spread over the burn
- A clean compress that is cool or cold, but not freezing
Ver respuesta
Respuesta: D. A clean compress that is cool or cold, but not freezing
If water is not available, use a clean cool or cold (not freezing) compress.
Pregunta 4 de 25
A burn happened an hour ago and was never cooled. Is it still worth cooling?
- No, it is too late to help once 10 minutes have passed since the burn
- Only if the burn is on the face
- No, cooling only works in the first minute
- Yes, cooling may still help up to 3 hours after the burn
Ver respuesta
Respuesta: D. Yes, cooling may still help up to 3 hours after the burn
The Red Cross notes that cooling up to 3 hours after the injury may still help.
Pregunta 5 de 25
A person may have a broken forearm. What should you do?
- Support it and keep it still in the position you found it
- Gently pull on the hand to straighten the arm
- Massage the injured area to reduce the swelling
- Have them shake the arm to test if it is broken
Ver respuesta
Respuesta: A. Support it and keep it still in the position you found it
Moving a broken bone can cause more damage. Keep it still and supported.
Pregunta 6 de 25
How should you apply cold to a sprained ankle?
- Use a heating pad instead
- Put the ice directly on the bare skin so it works faster
- Rub snow on it hard
- Put a cloth between the ice pack and the skin
Ver respuesta
Respuesta: D. Put a cloth between the ice pack and the skin
A cloth barrier protects the skin from cold injury.
Pregunta 7 de 25
Which injury needs a 911 call?
- A mild bruise on the arm
- A bone sticking out through the skin
- A stubbed toe that is sore but can still move normally
- A small scrape on the knee
Ver respuesta
Respuesta: B. A bone sticking out through the skin
An open fracture is serious and needs EMS.
Pregunta 8 de 25
A player hits their head and seems confused. What is the safest choice?
- Let them keep playing if they say they are fine
- Remove them from play and have them checked by a health care provider
- Let them drive themselves home
- Give them pain medicine and send them back in
Ver respuesta
Respuesta: B. Remove them from play and have them checked by a health care provider
Anyone with a possible concussion should stop activity and be evaluated.
Pregunta 9 de 25
What does F.A.S.T. stand for when spotting a stroke?
- Fever, Aches, Sweating, Tiredness: signs of the flu
- Face drooping, Arm weakness, Speech difficulty, Time to call 911
- Fall, Ankle, Shoulder, Toe: places to check for injury
- Food, Air, Sleep, Thirst: needs to check in a patient
Ver respuesta
Respuesta: B. Face drooping, Arm weakness, Speech difficulty, Time to call 911
F.A.S.T. helps you spot common stroke signs and reminds you to call 911 right away.
Pregunta 10 de 25
Some US hospitals and courses use BE-FAST. What do the extra letters B and E stand for?
- Back and Elbows
- Breathing and Energy
- Bleeding and Ears
- Balance and Eyes
Ver respuesta
Respuesta: D. Balance and Eyes
BE-FAST adds Balance and Eyes (vision changes) to Face, Arm, Speech and Time.
Pregunta 11 de 25
You suspect someone is having a stroke. What should you do?
- Have them lie down and sleep
- Drive them to a pharmacy
- Call 911 right away
- Wait a few hours to see if it passes
Ver respuesta
Respuesta: C. Call 911 right away
Activate EMS immediately for a suspected stroke. Fast treatment matters.
Pregunta 12 de 25
A person has sudden chest pain that might be a heart attack. What should you do first?
- Drive them to the hospital yourself
- Call 911
- Tell them to walk it off
- Give them a big meal
Ver respuesta
Respuesta: B. Call 911
Activate EMS for acute chest pain.
Pregunta 13 de 25
An alert adult with chest pain from no injury may chew aspirin while waiting for EMS. What dose do the guidelines mention?
- 1,000 to 2,000 mg
- Any amount they want
- 162 to 325 mg
- 10 to 20 mg
Ver respuesta
Respuesta: C. 162 to 325 mg
An alert adult may chew and swallow 162 to 325 mg of aspirin unless allergic or told not to take it.
Pregunta 14 de 25
An alert adult with chest pain may chew aspirin unless which of these is true?
- They are sweating and feel sick to their stomach
- They are allergic to aspirin or have been told not to take it
- They have eaten a large meal or snack within the last hour or so
- They are over 40 years old
Ver respuesta
Respuesta: B. They are allergic to aspirin or have been told not to take it
Do not give aspirin to a person with an aspirin allergy or who was told not to take it.
Pregunta 15 de 25
Which group of signs suggests a heart attack?
- A sore knee and a limp after a long walk
- Ear pain, a runny nose and a mild fever
- Itchy skin, sneezing and watery eyes after eating
- Chest pain or pressure, shortness of breath, sweating and nausea
Ver respuesta
Respuesta: D. Chest pain or pressure, shortness of breath, sweating and nausea
These are common signs. Call 911 right away.
Pregunta 16 de 25
A person with asthma is having trouble breathing. What should you do?
- Have them breathe slowly into a paper bag until they calm down
- Give them your own medicine
- Have them lie flat on the floor
- Help them use their prescribed inhaler
Ver respuesta
Respuesta: D. Help them use their prescribed inhaler
First aid providers can help a person use their prescribed bronchodilator (inhaler).
Pregunta 17 de 25
Which is preferred when helping someone use an asthma inhaler?
- Using a spacer with the inhaler
- Using the inhaler on the skin
- Shaking the person while they inhale
- Spraying the inhaler into the air near them
Ver respuesta
Respuesta: A. Using a spacer with the inhaler
A spacer (or nebulizer) is preferred over an inhaler alone.
Pregunta 18 de 25
No commercial spacer is available. What do the guidelines say is a reasonable improvised spacer?
- A 500-mL plastic bottle or a paper cup
- A drinking straw
- A cupped hand held over the mouth and nose
- A rolled-up sock held over the mouth and nose
Ver respuesta
Respuesta: A. A 500-mL plastic bottle or a paper cup
An improvised spacer made from a 500-mL plastic bottle or a 150-mL paper cup is reasonable.
Pregunta 19 de 25
Where is an epinephrine auto-injector usually injected?
- Into the stomach
- Into the outer (lateral) thigh
- Into the upper arm, like a flu shot
- Into the hand
Ver respuesta
Respuesta: B. Into the outer (lateral) thigh
Epinephrine is typically injected into the outer thigh.
Pregunta 20 de 25
Someone is having anaphylaxis and has an auto-injector. What should happen?
- Have them lie down and sleep it off
- They use the auto-injector, and someone calls 911
- Wait to see whether it gets better on its own
- Give them a glass of milk to calm the reaction and wait an hour
Ver respuesta
Respuesta: B. They use the auto-injector, and someone calls 911
Use the epinephrine auto-injector and activate EMS.
Pregunta 21 de 25
When may a second epinephrine dose be considered?
- Never, because a second dose is not allowed in first aid
- Only after 2 hours, once the first dose has worn off
- Right away, before the first dose has been given
- If there is no response to the first dose and EMS is over 5 to 10 minutes away
Ver respuesta
Respuesta: D. If there is no response to the first dose and EMS is over 5 to 10 minutes away
A repeat dose may be considered if there is no response and EMS arrival will be more than 5 to 10 minutes.
Pregunta 22 de 25
A person with low blood sugar is awake and can swallow. Which form of sugar is preferred?
- A dose of insulin
- Glucose tablets
- A diet soda
- Plain water
Ver respuesta
Respuesta: B. Glucose tablets
Oral glucose tablets are preferred over gels or other sugars.
Pregunta 23 de 25
A person with diabetes is not fully awake and cannot swallow. Should you give sugar by mouth?
- Yes, pour juice into their mouth
- No, call 911 and give nothing by mouth
- Yes, put candy in their mouth
- Yes, squeeze glucose gel into their mouth for them to swallow
Ver respuesta
Respuesta: B. No, call 911 and give nothing by mouth
Giving oral glucose to someone who is not fully awake or cannot swallow can cause harm.
Pregunta 24 de 25
You gave sugar to a person with low blood sugar. When should you call 911?
- Only if they still feel unwell after 2 hours
- If they do not improve in 10 minutes, have a seizure or cannot swallow
- Only if they ask you to call a doctor for them
- Never, because sugar always fixes low blood sugar
Ver respuesta
Respuesta: B. If they do not improve in 10 minutes, have a seizure or cannot swallow
Activate EMS if the person cannot swallow, has a seizure, or does not improve within 10 minutes.
Pregunta 25 de 25
A seizure has lasted more than how long before you should call 911?
- 30 seconds
- 30 minutes
- 5 minutes
- 1 minute
Ver respuesta
Respuesta: C. 5 minutes
Call 911 for a seizure lasting more than 5 minutes.

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