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First Aid at Sea revision module 6 of 8

MED

Seasickness, Dehydration, and Medication

Seasickness prevention, dehydration risk, regular medication, allergies, and skipper planning.

seasicknessdehydration

4 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision
  • Explain seasickness prevention, dehydration risk, regular medication, allergies, and skipper planning.
  • Apply seasickness to a realistic onboard situation.
  • Recall the core check: take seasickness seriously before it disables a crew member.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.

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Lesson routeSeasickness as a Safety Problem0/1 read

Lesson 1 of 1

Seasickness as a Safety Problem

Seasickness is not just discomfort. It can cause dehydration, exhaustion, poor judgement, missed watchkeeping, inability to help with emergencies, and increased risk of hypothermia if the casualty is wet or inactive.

Plan before departure: crew history, medication choices, food, hydration, watch rotation, ventilation, and the option to turn back before a mild problem becomes an emergency.

  • Take seasickness seriously before it disables a crew member.
  • Hydration and warmth matter.
  • A sick helm, navigator, or radio operator may no longer be fit for that role.
  • Avoid pressing on just because the passage was planned.
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