EFA-L1.1

The EFA standard and how the body works

EFA-M1 · Foundations · EFA-M1-A The EFA standard, how the body works, and how to assess the scene and the casualty.

Where EFA fits in STCW, and **enough anatomy** to understand why first aid works.

Entry & progression

Governing: STCW Section A-VI/1 and Table A-VI/1-3; MSN 1865 (M) Amendment 1, sections 3.4, 4.4 and 5. Builds on: nothing, start here.

Where EFA fits

Elementary First Aid is one of the four STCW basic training elements (see Personal Survival Techniques for the full list). Its competence is simple to state: take immediate action upon encountering an accident or other medical emergency.

MSN 1865 section 3.4 requires, for the certificate of proficiency, age at least 16 and training at an MCA-approved provider to the Table A-VI/1-3 standard. Unlike PST and FPFF, EFA does not appear in the list of certificates that must be updated every five years (MSN 1865 section 4.4). Skills fade regardless; practise.

Level STCW Who
Elementary First Aid A-VI/1-3 Everyone with safety duties
Medical First Aid A-VI/4, paras 1-3 Anyone designated to give first aid on board
Medical Care A-VI/4, paras 4-6 Whoever is in charge of medical care

On a yacht, the designated medical person is often an officer or chief stew with Medical First Aid or Medical Care. But the first person on scene is usually whoever is nearest. That is why everyone does EFA.

Table A-VI/1-3 in brief

  • assessment of the casualty's needs and threats to your own safety;
  • appreciation of body structure and functions;
  • immediate measures: position the casualty, resuscitation, control bleeding, manage shock, burns and scalds including electrical accidents, rescue and transport, and improvise bandages and use the emergency kit.

How the body works

You do not need a doctor's anatomy. You do need to know what keeps a person alive.

System Parts Why it matters in first aid
Respiratory Airway (mouth, nose, throat, windpipe), lungs Air must get in. An unconscious person's tongue can block the airway
Circulatory Heart, arteries, veins, blood Carries oxygen. Blood loss and cardiac arrest stop delivery
Nervous Brain, spinal cord, nerves The brain is damaged within minutes without oxygen. The spinal cord runs through the spine
Skeletal Skull, spine, ribs, pelvis, limbs Protects organs; fractures cause pain, bleeding and deformity
Muscular Muscles and tendons Movement; strains and crush injuries
Skin The largest organ Barrier to infection and heat loss; burns destroy it
Digestive Stomach, intestines, liver Abdominal injury can bleed internally

The oxygen chain

Air enters the airway, reaches the lungs, oxygen passes into the blood, the heart pumps it to the brain and body. Break any link and the brain starts to die within minutes. Almost every priority in first aid, airway, breathing, circulation, is about keeping that chain intact.

Vital signs

Sign What to look for
Responsiveness Alert, responds to voice, to pain, or unresponsive
Breathing Normal, noisy, laboured, gasping, absent
Pulse Rate and strength, at wrist or neck
Skin Colour, temperature, sweating

CAUTION — Skin colour RCUK 2025 guidance notes that colour changes are unreliable across skin tones. For cyanosis in darker skin, look for pallor or blue tinges inside the lips.

TIP — Know your medical locker On your first day, find the first aid kits, the AED, the stretcher and the medical log. Who holds the keys, and who is the designated medical person?

Practice questions

5 questions

recall · core

What is the minimum age for an EFA certificate of proficiency? (a) 15 (b) 16 (c) 17 (d) 18

recall · core

Which STCW table sets the EFA standard? (a) A-VI/1-1 (b) A-VI/1-2 (c) A-VI/1-3 (d) A-VI/4-1

recall · core

Which crew member needs Medical First Aid (A-VI/4) rather than just EFA? (a) Anyone designated to provide medical first aid on board (b) Every deckhand (c) Only guests' nannies (d) Only the master

recall · core

What does the circulatory system do? (a) Moves air in and out of the lungs (b) Pumps blood carrying oxygen to the tissues and removes waste (c) Controls movement (d) Protects organs from injury

scenario · core

A new stewardess asks whether she must redo EFA every five years like PST and FPFF. What do you tell her? (a) Only if she changes flag (b) Every two years (c) Yes, the same as PST (d) No; MSN 1865 does not list EFA among the five-yearly refresher requirements, though keeping skills current is wise

Independent study. xplor is not an accredited training provider and awards no certificate or Certificate of Competency. The EFA certificate of proficiency requires hands-on assessment in CPR, bleeding control and casualty handling at an MCA-approved (or flag-recognised) training centre; this course is not a substitute for practical training or medical advice. AI-drafted content pending subject-matter-expert review.