Drowning remains one of the leading causes of accidental death worldwide. In the United Kingdom, accidental immersion incidents occur across diverse environments, from coastal waters and inland rivers to residential swimming pools and domestic baths. Understanding the exact, medically verified sequence of first aid for drowning can mean the absolute difference between a successful resuscitation and a fatal tragedy.
This comprehensive guide details the modern, evidence-based medical consensus for managing a drowning victim. It addresses critical physiological concepts, answers the most common emergency queries, and breaks down exactly how to respond when every single second counts.
What are the Stages of Drowning?
To provide effective care, it is vital to recognise that drowning is a progressive process rather than a sudden event. Medical and search-and-rescue professionals categorize the drowning process into distinct physiological phases. Understanding these stages helps first-aiders anticipate what is happening inside the victim’s body.
+-----------------------------------------------------------------+ | THE PHYSIOLOGICAL TRANSITION | +-----------------------------------------------------------------+ | 1. Surprise & Struggle -> Intense panic, hyperventilation | | 2. Water Inhalation -> Laryngospasm or water enters lungs | | 3. Unconsciousness -> Deprivation of vital oxygen | | 4. Hypoxic Cardiac Arrest -> Heart stops due to lack of O2 | +-----------------------------------------------------------------+
1. Surprise and Struggle
The initial phase begins when a swimmer realises they can no longer keep their head above water. This triggers an instinctual drowning response. The individual experiences intense panic, thrashes their arms to lift their mouth above the surface, and is typically unable to call out for help because their respiratory system is completely focused on trying to breathe.
2. Inhalation of Water and Laryngospasm
As exhaustion sets in, the victim’s mouth drops below the surface. They may gulp or swallow large volumes of water, forcing it into the stomach. When water touches the vocal cords, it can trigger a sudden, involuntary muscular contraction known as a laryngospasm. This spasm seals the airway shut to protect the lungs. While it temporarily prevents fluid entry, it also completely cuts off oxygen, leading to rapid suffocation.
3. Unconsciousness
As oxygen levels drop precipitously (hypoxia) and carbon dioxide levels climb (hypercapnia), the brain is deprived of its vital energy source. The laryngospasm eventually relaxes when the person loses consciousness, allowing water to pass freely into the lungs if they are still submerged.
4. Hypoxic Cardiac Arrest
Prolonged oxygen deprivation causes irreversible damage to myocardial (heart muscle) tissue. The heart rhythm degrades, eventually stopping altogether. This is known as a hypoxic cardiac arrest. Because the arrest is caused by a lack of oxygen rather than an underlying cardiac issue, the resuscitation strategy must focus heavily on restoring ventilation immediately.
What is the First Thing You Do When Someone is Drowning?
In any water rescue scenario, the absolute first priority is dynamic risk assessment and personal safety. A classic maxim in lifesaving circles states: “A dead rescuer cannot save a life.” Far too many drowning tragedies involve a well-meaning bystander jumping into hazardous water only to become a second casualty.
Before touching the water, remember the rescue sequence: Talk, Reach, Throw, Wade, Row, Swim.
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Talk: Shout to the casualty. If they are conscious, encourage them to swim toward you or guide them toward a shallow area.
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Reach: Extend an object from a secure position on dry land. Use a tree branch, a paddle, a long pole, or a piece of clothing. Keep your center of gravity low so you aren’t pulled into the water.
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Throw: Cast a buoyant rescue aid to the person. This could be a lifebuoy, a throw bag, a marine rescue line, or even an improvised flotation device like a sealed plastic jerrycan.
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Wade, Row, Swim: Only entering the water if you are explicitly trained, a strong swimmer, and it is completely safe to do so. If you must enter, take a flotation device with you to keep between yourself and the panicked casualty.
Simultaneously, make sure emergency services are alerted immediately. In the UK, call 999 or 112 and clearly state that you require the Ambulance service and, if applicable, the Coastguard or Fire and Rescue service for an active water rescue.
What is the First Aid for a Drowned Person?
Once the casualty has been safely retrieved from the water and placed on a firm, flat surface, standard first aid protocols change significantly from a standard cardiac arrest. Because drowning is primarily a respiratory failure event, the primary goal is to reverse severe hypoxia.
The following precise sequence should be followed systematically:
1. Check for Responsiveness
Gently shake the casualty’s shoulders and shout loudly near their ear: “Are you alright? Open your eyes.” If there is no purposeful movement, vocal response, or blinking, the casualty is deemed unresponsive.
2. Open the Airway
Place one hand on the casualty’s forehead and gently tilt their head backwards. Simultaneously, place two fingertips under the point of their chin and lift. This head-tilt/chin-lift maneuver pulls the tongue forward, clearing the physical obstruction from the back of the throat.
3. Assess for Normal Breathing
Keep the airway open and place your ear close to the casualty’s mouth and nose. Look down their chest. Spend no more than 10 seconds performing three tasks:
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Look to see if the chest is rising and falling.
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Listen for normal, rhythmic breath sounds.
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Feel the movement of air against your cheek.
Crucial Warning: Agonal gasps (infrequent, irregular, noisy gasping sounds) are common right after cardiac arrest. Do not mistake agonal gasping for normal breathing. If it is not normal, treat them as non-breathing.
4. Administer 5 Initial Rescue Breaths
For a standard cardiac arrest, guidelines recommend starting with chest compressions. However, for a drowning victim, you must start with 5 initial rescue breaths. The oxygen in their blood and lungs has been utterly depleted; chest compressions alone will merely circulate deoxygenated blood, which cannot sustain brain tissue.
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Ensure the airway remains open using the head-tilt/chin-lift.
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Pinch the soft part of the casualty’s nose closed using your index finger and thumb.
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Take a normal breath and form a tight, complete seal with your lips around their mouth.
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Blow steadily into their mouth for about 1 second, watching for the chest to rise.
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Maintain the head tilt, remove your mouth, watch the chest fall, and repeat this for a total of 5 breaths.
5. Perform High-Quality CPR (30 Compressions to 2 Breaths)
If the casualty shows no signs of life (movement, coughing, or normal breathing) after the 5 initial rescue breaths, you must begin continuous Cardiopulmonary Resuscitation (CPR).
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Hand Placement: Place the heel of one hand directly in the centre of the casualty’s chest (the lower half of the breastbone). Place the heel of your other hand on top and interlock your fingers.
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Positioning: Position your shoulders directly over your hands, keeping your arms straight and elbows locked.
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Compression Depth and Rate: Compress the chest down to a depth of 5 to 6 cm (for an adult) at a steady mechanical rate of 100 to 120 compressions per minute. Allow the chest to fully recoil after each compression without lifting your hands off the breastbone.
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The Ratio: Alternate between 30 chest compressions and 2 effective rescue breaths.
Continue this cycle systematically until professional medical help arrives, an Automated External Defibrillator (AED) is brought to the scene and switched on, or the casualty clearly wakes up and begins breathing normally.
Using an Automated External Defibrillator (AED)
If an AED is available, open it and turn it on immediately. The device provides clear, spoken auditory instructions.
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Dry the Chest: Water conducts electricity. Before applying the adhesive electrode pads, quickly wipe the casualty’s bare chest dry with a towel or clothing.
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Apply Pads: Attach the pads firmly to the positions shown on the graphics (typically one below the right collarbone and one on the lower left side of the ribcage).
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Clear the Casualty: Ensure nobody is touching the casualty while the AED analyses the heart rhythm or delivers a shock.
How to Help Someone Who Inhaled Water?
A common question that arises is how to manage a casualty who was submerged but is fully conscious, coughing, and breathing upon rescue. Even if an individual seems completely fine after inhaling water, they are at significant risk of late-onset respiratory failure, traditionally referred to in lay terms as “secondary drowning” or “delayed drowning.”
Understanding the Mechanism of Injury
When a person inhales water, even a small volume can cause severe irritation to the delicate endothelial lining of the lungs.
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Freshwater Immersion: Freshwater is hypotonic compared to blood. It passes rapidly across the alveolar-capillary membrane into the bloodstream, destroying pulmonary surfactant (the fluid that keeps air sacs open) and causing the alveoli to collapse.
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Saltwater Immersion: Saltwater is hypertonic. It draws fluid out of the vascular system directly into the air sacs, filling the lungs with fluid and causing severe pulmonary oedema.
Both mechanisms result in serious ventilation-perfusion mismatching, hypoxia, and severe inflammation that can manifest hours after the initial event.
1. Ensure Immediate Safety and Reassurance: Immediate.
Remove the individual from the water and keep them completely still. Reassure them to lower their heart rate and anxiety levels, which can aggravate respiratory distress.
2. Remove Wet Clothing and Prevent Hypothermia: Within 5 minutes.
Wet clothes drain body heat rapidly via evaporation. Strip away wet layers, dry the casualty’s skin thoroughly, and wrap them in dry blankets, towels, or thermal space blankets. Address hypothermia immediately, as cold blood impairs clotting and worsens metabolic acidosis.
3. Monitor for Warning Signs: Continuous monitoring.
Keep a close watch on the individual. Look specifically for persistent coughing, shortness of breath, rapid or shallow breathing, wheezing, chest pain, extreme fatigue, confusion, or blue/grey discolouration around the lips and fingernails (cyanosis).
4. Seek Compulsory Medical Evaluation: Critical Action.
Every single individual who has survived a drowning event or inhaled water requires formal evaluation at an Accident and Emergency (A&E) department. Do not let them go home or sleep unsupervised. They must be monitored clinically for at least 6 to 8 hours for progressive lung injury.
Key Differences based on Age: Infants and Children
When executing first aid for drowning on pediatric casualties, specific physiological adjustments must be made to protect their smaller, developing skeletal and respiratory frameworks.
| Metric / Step | Adults (Ages 8+) | Children (1 Year to Puberty) | Infants (Under 1 Year) |
|---|---|---|---|
| Initial Breaths | 5 Rescue Breaths | 5 Rescue Breaths | 5 Rescue Breaths (Mouth-to-Mouth & Nose) |
| Airway Positioning | Full Head Tilt / Chin Lift | Sniffing Position (Neutral/Slight Tilt) | Neutral Position (No Over-extension) |
| Compression Technique | Two hands interlocked | One or two hands (depending on size) | Two fingers on the lower sternum |
| Compression Depth | 5 to 6 cm | Approximately 5 cm (1/3 chest depth) | Approximately 4 cm (1/3 chest depth) |
| Ratio (CPR) | 30:2 | 30:2 | 30:2 |
Common Myths and Mistakes to Avoid
In high-stress emergency scenarios, misconceptions can lead to dangerous interventions. Ensure you avoid these critical errors:
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Do Not Perform the Heimlich Manoeuvre: Never attempt to press on the stomach or perform abdominal thrusts to “pump” water out of the lungs. This does not remove pulmonary fluid; instead, it forces gastric contents up into the throat, leading to massive aspiration and further airway blockage.
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Do Not Delay Resuscitation to Clear Water: Water in the upper airway typically drains naturally during rescue breaths and compressions. If the casualty vomits, turn them onto their side into the recovery position, clear the debris out with your fingers, and immediately roll them onto their back to resume CPR.
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Do Not Stop CPR: Do not stop administering resuscitation cycles because the casualty appears cold or blue. Hypothermia can exert a protective effect on brain tissue during submersion, and remarkable neurological recoveries have occurred after prolonged CPR in cold-water drowning events.
Build Lifesaving Confidence through Practical Certification
Reading a guide is an excellent way to acquire theoretical knowledge, but real-world emergencies require muscle memory, physical precision, and practical practice under expert guidance. When someone is submerged, your ability to execute chest compressions and rescue breaths without hesitation determines the outcome.
At Practical First Aid, we deliver fully accredited, HSE-compliant first aid training courses across London and its surrounding boroughs. Our programs feature hands-on practice with advanced feedback manikins, real-time AED simulators, and immersive scenario training led by veteran medical and rescue professionals.
Equip yourself, your family, or your workplace team with the practical skills needed to handle water emergencies confidently. Explore our course options to find an upcoming certification class in your local area.
