EFA Exit Exam • Set 10 Question 22 of 30

When performing CPR on an adult how deep should the chest compression be?

✓

Direct Answer

Option B: 2 inches

Untrained bystanders witnessing sudden cardiac arrest are advised to call emergency services and perform hands-only chest compressions to maintain vital organ perfusion until help arrives.

All Options

1 1/2 inches

2 inches (Correct Answer)

2 1/2 inches

3 inches

Detailed Explanation & Context

Untrained bystanders witnessing sudden cardiac arrest are advised to call emergency services and perform hands-only chest compressions to maintain vital organ perfusion until help arrives.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Elementary First Aid (EFA).

Practice Full EFA Set 10

Test yourself with 30 interactive questions, live timer, and instant score.

Launch Practice Simulator →

Question Discussion & Notes

Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.

Loading mariner discussions...

« Previous Question Next Question »

More Questions in EFA Set 10

View All 30 →

Q1 A woman has fallen and turned her ankle. She says she heard something snap. She looks pale and is sweating. What should you do? Q2 What does 'A' stand for in the acronym DRABC? Q3 What is the best way to control bleeding? Q4 A burn should be immersed or placed under water for at least: Q5 The symptoms of shock include: Q6 When caring for someone who has suffered an electric shock, you would not: Q7 Fluid should not be given by mouth when internal injury is suspected: Q8 How should you open the airway of an unconscious casualty? Q9 What steps would you take to control bleeding from a nosebleed? Q10 What is fainting?