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DG Exit Exam
Answer Key

EFA exit exam questions and answers — Set 25 — Elementary First Aid

Set 25 of the Elementary First Aid (EFA) exit exam bank — 30 of 1185 questions, with the correct option marked and a one-line explanation for every one. Read it end to end, jump to a single set, or search it — then sit the same bank as a timed paper. The real DG Shipping exit exam is 30 marks with 15 to pass.

These are the bank's original groupings. Practising deals the whole bank out again every time you reshuffle, so a practice “Set 3” is a different 30 questions each time — the set numbers below are the source file's, and are only used here so the key stays navigable. Options are listed in their original order with fixed letters; when you practise, those move too.

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Set 25 — 30 EFA exit exam questions with answers

1. When performing chest compressions, where on the casualty's body do you place your hands?

  • A. Heel of one hand on the centre of the chest (lower half of the breastbone), with the other hand on top
  • B. On the upper part of the breastbone near the throat
  • C. On the left side of the chest over the ribs
  • D. On the abdomen just below the ribs
Answer: A — Heel of one hand on the centre of the chest (lower half of the breastbone), with the other hand on top
Compressions are given with the heel of one hand on the centre of the chest, the lower half of the sternum, the other hand on top and fingers interlocked, keeping off the ribs and the abdomen.

2. A person has frostbite on the feet. What should you do?

  • A. Rewarm the feet in warm water not exceeding about 40°C (105°F), then cover with dry sterile dressings
  • B. Rub the feet vigorously with snow
  • C. Warm the feet in front of a fire or heater
  • D. Let the person walk on the feet to restore circulation
Answer: A — Rewarm the feet in warm water not exceeding about 40°C (105°F), then cover with dry sterile dressings
Frostbitten parts are rewarmed gently in warm water of about 40°C, never hot, then dressed loosely with dry sterile dressings. Rubbing or direct heat damages the frozen tissue further.

3. After applying a compression bandage, which sign shows that the bandage may be too tight?

  • A. Swelling below the bandage and severe pain
  • B. Warm, pink skin below the bandage
  • C. Normal pulse below the bandage
  • D. The bandage feels secure and comfortable
Answer: A — Swelling below the bandage and severe pain
A bandage that is too tight restricts circulation, causing swelling, severe pain, pale or bluish cold skin and numbness beyond it. It must then be loosened and circulation rechecked.

4. Blood serves as a vehicle for transporting:

  • A. Oxygen, nutrients, carbon dioxide, wastes, hormones and antibodies
  • B. Only oxygen
  • C. Only food and water
  • D. Only nerve impulses
Answer: A — Oxygen, nutrients, carbon dioxide, wastes, hormones and antibodies
Blood carries oxygen and nutrients to tissues and removes carbon dioxide and other wastes, while also transporting hormones, antibodies and other substances around the body.

5. Which of the following best describes a contusion?

  • A. A bruise caused by bleeding under unbroken skin
  • B. A deep cut with clean edges
  • C. A wound caused by a pointed object
  • D. A tearing away of a flap of skin
Answer: A — A bruise caused by bleeding under unbroken skin
A contusion is a bruise: blunt force ruptures small blood vessels and blood leaks into the tissues under intact skin, causing swelling and discolouration. Incisions, punctures and avulsions are open wounds.

6. Which of the following conditions would indicate that a casualty is dead?

  • A. Rigor mortis (stiffening of the body) is present
  • B. The skin is wet and clammy
  • C. The pulse is rapid and weak
  • D. The casualty is breathing slowly
Answer: A — Rigor mortis (stiffening of the body) is present
Reliable signs of death include absence of breathing and pulse, fixed dilated pupils, rigor mortis and post-mortem staining. Wet clammy skin is a sign of shock in a living casualty.

7. What is the disadvantage of using a tourniquet initially to stop bleeding?

  • A. It cuts off blood and oxygen to the limb, which may lead to loss of the injured part
  • B. It increases the bleeding
  • C. It causes the casualty to become hypothermic
  • D. It cannot be applied to an arm
Answer: A — It cuts off blood and oxygen to the limb, which may lead to loss of the injured part
A tourniquet stops all blood flow below it, so tissues are starved of oxygen and may die, risking amputation. Direct pressure and elevation are used first; a tourniquet is a last resort for life-threatening limb bleeding.

8. An infant is in cardiac arrest and only an adult AED with adult pads is available. What should you do?

  • A. Use the adult AED, placing the pads on the front and back of the chest so they do not touch
  • B. Do not use the AED at all
  • C. Cut the adult pads in half to fit the infant
  • D. Use the AED only after 30 minutes of CPR
Answer: A — Use the adult AED, placing the pads on the front and back of the chest so they do not touch
Guidelines state that if paediatric pads or an attenuator are not available, an adult AED should still be used on an infant. Pads are placed front and back of the chest so they do not touch.

9. How will you check a patient in shock for paleness if the skin is dark?

  • A. Check the mucous membranes (inside of lips and eyelids) and the nail beds
  • B. Check the colour of the palms only after exercise
  • C. Look at the hair colour
  • D. Check the colour of the soles after warming
Answer: A — Check the mucous membranes (inside of lips and eyelids) and the nail beds
Paleness is hard to see on dark skin, so look at areas with little pigment: the inner lips, inner eyelids and nail beds. Pale or bluish colour there indicates poor circulation and shock.

10. Where is the heart located?

  • A. Just above the diaphragm, in the middle of the thorax, extending slightly to the left
  • B. In the abdomen below the stomach
  • C. On the right side of the chest beneath the right lung
  • D. Behind the spinal column in the lower back
Answer: A — Just above the diaphragm, in the middle of the thorax, extending slightly to the left
The heart lies in the mediastinum just above the diaphragm, between the lungs in the middle of the thorax, with its apex extending slightly to the left. It is about the size of the person's clenched fist.

11. Redness of the eye can be caused by:

  • A. Welding arc flash without eye protection
  • B. Wearing safety goggles
  • C. Drinking cold water
  • D. Low blood pressure
Answer: A — Welding arc flash without eye protection
Ultraviolet radiation from an electric welding arc burns the surface of the eye (arc eye), causing redness, pain, watering and a gritty feeling. Proper welding shields and goggles prevent it.

12. You come upon an unconscious victim with a pulse who does not appear to be breathing. You are unable to deliver the first breath. What is the next step?

  • A. Repeat the head tilt/chin lift manoeuvre and attempt the breath again
  • B. Start abdominal thrusts immediately
  • C. Give up and wait for the doctor
  • D. Turn the victim into the recovery position
Answer: A — Repeat the head tilt/chin lift manoeuvre and attempt the breath again
The most common cause of a failed breath is a poorly opened airway. Reposition the head with head tilt and chin lift and try again; if breaths still do not go in, treat for airway obstruction.

13. ____ is a condition in which an injured person's vital organs slow down due to a serious injury.

  • A. Shock
  • B. Fatigue
  • C. Fainting
  • D. Cramp
Answer: A — Shock
Shock is a life-threatening condition in which the circulation fails to supply enough oxygenated blood to vital organs after severe injury, bleeding or burns, so body functions slow down and fail.

14. A shipmate touches some live electrical wires and collapses unconscious. What is the first thing you should do?

  • A. Find and isolate the source of electricity
  • B. Pull the casualty away with your bare hands
  • C. Start chest compressions immediately while the casualty is still touching the wires
  • D. Pour water on the casualty
Answer: A — Find and isolate the source of electricity
Touching a casualty still in contact with live current will electrocute the rescuer. First switch off and isolate the supply, or push the casualty clear with dry non-conducting material, before giving first aid.

15. You are treating an infant in cardiac arrest. Where do you place the AED pads?

  • A. One on the centre of the chest and one on the back
  • B. Both on the front of the chest touching each other
  • C. One on each arm
  • D. One on the abdomen and one on the leg
Answer: A — One on the centre of the chest and one on the back
On an infant the chest is too small for two pads in the adult positions, so the anterior-posterior position is used: one pad on the centre of the chest and the other on the back between the shoulder blades.

16. What should you do if you think someone has a broken leg?

  • A. Keep the person calm and still in the position found, support the limb and get medical help
  • B. Make the person walk to test the leg
  • C. Straighten the leg forcibly
  • D. Massage the injured area
Answer: A — Keep the person calm and still in the position found, support the limb and get medical help
A suspected fracture is immobilised by keeping the casualty still and supporting the limb above and below the injury, avoiding unnecessary movement which could cause further damage, bleeding and pain.

17. To prevent further contamination and infection of a wound, you should cleanse the surrounding skin by:

  • A. Swabbing outward from the wound edge, using a fresh swab for each stroke
  • B. Scrubbing towards the wound with the same swab
  • C. Blowing on the wound to dry it
  • D. Applying cotton wool directly into the wound
Answer: A — Swabbing outward from the wound edge, using a fresh swab for each stroke
Cleaning from the wound outward, with a clean swab for each stroke, carries dirt and germs away from the wound rather than into it, reducing the risk of infection.

18. If a stroke is suspected you should do the F.A.S.T. test. What do these letters stand for?

  • A. Face, Arms, Speech, Time
  • B. Feel, Assess, Stop, Treat
  • C. Fever, Airway, Shock, Temperature
  • D. Fast, Alert, Sit, Talk
Answer: A — Face, Arms, Speech, Time
FAST checks for facial drooping, arm weakness and speech difficulty, with Time reminding the first aider to call for medical help immediately, because early treatment of stroke greatly improves outcome.

19. The simple pick-a-back method of carrying is useful only where the casualty is ____.

  • A. Conscious and able to hold on
  • B. Unconscious
  • C. Suffering from a spinal injury
  • D. Suffering from a leg fracture
Answer: A — Conscious and able to hold on
In the pick-a-back carry the casualty must grip the rescuer's shoulders, so it can only be used for a light, conscious casualty who can hold on and has no injuries made worse by the position.

20. Which of the following cannot be treated as a minor injury?

  • A. Wounds near joints
  • B. A small surface graze
  • C. A minor bruise on the arm
  • D. A small superficial cut on a fingertip
Answer: A — Wounds near joints
Wounds near joints may involve tendons, ligaments or the joint capsule and are prone to infection and loss of function, so they need medical assessment rather than being treated as minor.

21. Which one of the following factors increases the risk of life-threatening injury?

  • A. High velocity of impact
  • B. Low velocity of impact
  • C. Wearing protective clothing
  • D. A short fall onto a soft surface
Answer: A — High velocity of impact
The energy transferred in an accident rises sharply with speed, so high-velocity impacts such as falls from height or collisions carry a much greater risk of serious internal and life-threatening injury.

22. The pulse rate of a normal adult averages about:

  • A. 72 beats per minute
  • B. 10 beats per minute
  • C. 40 beats per minute
  • D. 150 beats per minute
Answer: A — 72 beats per minute
A normal resting adult pulse is 60-100 beats per minute, averaging about 72. Ten beats per minute would be a severe life-threatening bradycardia. Pulse is normally counted at the wrist or neck for a full minute.

23. In adults, the only site for the formation of red blood cells is the:

  • A. Red bone marrow
  • B. Yellow bone marrow
  • C. Liver
  • D. Spleen
Answer: A — Red bone marrow
There are two types of bone marrow. Yellow marrow is mostly fat tissue, while red bone marrow is the site in adults where red blood cells are produced.

24. The number of cycles of CPR (30 compressions to 2 breaths) that should be performed for an adult in 2 minutes is:

  • A. 5
  • B. 2
  • C. 10
  • D. 15
Answer: A — 5
At 100-120 compressions per minute with 30:2, one cycle takes about 24 seconds, so about five cycles are performed in two minutes before reassessing or swapping rescuers.

25. Where are the blood vessels that supply the skin found?

  • A. Dermis
  • B. Epidermis
  • C. Hair shaft
  • D. Nails
Answer: A — Dermis
The epidermis has no blood vessels. The dermis beneath it contains blood vessels, nerves, sweat glands and hair follicles, and nourishes the epidermis by diffusion.

26. If the throat is covered with a grey layer (membrane), it is a sign of:

  • A. Diphtheria
  • B. Common cold
  • C. Tonsillitis caused by a virus
  • D. Asthma
Answer: A — Diphtheria
Diphtheria typically forms a greyish adherent membrane over the tonsils and throat, which may obstruct breathing. It is a notifiable infectious disease requiring isolation and medical advice.

27. A strain occurs when a muscle or group of muscles is over-stretched and possibly torn by violent or sudden movement, for example lifting heavy weights incorrectly. The treatment of a strain may be remembered by the word RICE. What does RICE stand for?

  • A. Rest, Ice, Compression, Elevation
  • B. Rub, Ice, Cover, Exercise
  • C. Rest, Immobilise, Cool, Examine
  • D. Relax, Inspect, Compress, Exercise
Answer: A — Rest, Ice, Compression, Elevation
RICE means Rest the injury, apply Ice or a cold compress, apply Compression with a bandage and Elevate the limb, reducing swelling, bleeding into tissues and pain.

28. A six-month-old baby is turning blue around the mouth. He appears to be gagging but cannot cry or take a breath after being given marbles to play with. What is the next step?

  • A. Deliver back blows and chest thrusts
  • B. Give abdominal thrusts
  • C. Perform a blind finger sweep of the mouth
  • D. Give him water to drink
Answer: A — Deliver back blows and chest thrusts
This is severe airway obstruction in an infant. Give up to five back blows followed by up to five chest thrusts, repeating as needed. Abdominal thrusts are not used on infants and blind finger sweeps can push the object deeper.

29. First aid must be administered immediately to:

  • A. Restore breathing and heartbeat
  • B. Clean minor scratches
  • C. Bandage a sprained ankle
  • D. Treat a mild headache
Answer: A — Restore breathing and heartbeat
Brain damage begins within a few minutes when breathing and circulation stop, so restoring breathing and heartbeat by CPR is the most urgent first aid priority.

30. The factor which indicates that a drug-related emergency is life-threatening is:

  • A. Altered mental status
  • B. Dilated pupils only
  • C. Mild nausea
  • D. A slight headache
Answer: A — Altered mental status
An altered or decreasing level of consciousness shows the drug is affecting the brain and may lead to airway obstruction, respiratory depression and death, so it signals a life-threatening emergency.

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