PADI Rescue Diver Theory & Practical Skills Review

Objective. Learners accurately recall all PADI Rescue Diver knowledge review content and execute each required confined- and open-water rescue skill to the standard required for a PADI certification checkout.

This lab session consolidates everything you need to pass the PADI Rescue Diver certification checkout. You will work through all five knowledge-review chapters, practice confined-water exercises in the pool, and complete a full open-water rescue scenario evaluated against PADI's performance requirements checklist. Zero critical skill failures are required to pass.

Why Rescue Diver Certification Matters

As an aquaculture or marine science technician, you will work in and around open water, often in remote locations with a small crew. Statistically, dive emergencies happen even to experienced divers. The Rescue Diver course trains you to recognize problems before they escalate, manage a diver in distress, and keep yourself safe while doing so. ADCI commercial dive standards also expect documented rescue competency, so this credential directly supports your ADCI Commercial Diver pathway.

Chapter Summaries: The Five Knowledge Areas

1. Self-Rescue. You cannot help others if you become a victim yourself. Self-rescue skills include controlled emergency swimming ascents (CESA), buoyant ascents, managing out-of-air situations, and preventing task-loading that leads to panic. Review your own stress signals: tunnel vision, rapid breathing, freezing, or the urge to bolt to the surface.

2. Recognizing and Managing Stress in Divers. Stress is the root cause of most dive emergencies. Pre-dive stress shows as over-talking, silence, fidgeting with gear, or rushing. In-water stress presents as wide eyes, rapid breathing from a regulator, rigidity, or surface-seeking behavior. Early intervention—calm voice, eye contact, physical contact, controlled ascent—prevents escalation to panic.

3. Emergency Management and Equipment. Know the location and operation of every piece of emergency gear before entering the water: oxygen delivery unit, AED, first aid kit, rescue tube, and signaling devices. Practice the emergency action plan (EAP): summon help first, then respond. Failure to summon help is a critical skill failure on your evaluation.

4. Rescuing Panicked and Unresponsive Divers. A panicked diver can drown a rescuer. Approach from behind or at an angle. Use a rescue tube as a barrier before making contact. For an unresponsive diver at the surface: establish an airway immediately by tilting the head, remove the mask only after airway is established and ventilation is underway, signal for help, and begin in-water rescue breathing while towing to exit. Airway management is a critical performance item—any failure here ends the scenario.

5. Post-Rescue Care. After removing the victim from the water, assess responsiveness and breathing. If absent, begin CPR immediately and attach the AED as soon as it is available. Follow current American Heart Association or equivalent BLS guidelines for compression-to-ventilation ratios for adults. Document the incident timeline for EMS handover.

Confined-Water Exercises: Pool Skills

Practice each skill to the point of automatic execution. PADI evaluates performance, not just attempts.

Tired-diver tow: Approach calmly, offer the rescue tube, tow the diver 30 m or more using an efficient kick while maintaining communication.
Panicked-diver approach and control: Recognize the signals at distance, call out reassurance, approach from behind, secure with the rescue tube between you and the diver.
Equipment removal in water: Remove and stow the victim's weights and BCD at the surface without losing control of the diver.
In-water rescue breathing while towing: Deliver two initial breaths using a pocket mask, then one breath every five seconds while towing—a rate consistent with current rescue breathing guidelines. Maintain tow momentum.
Unresponsive diver at surface: Establish airway (head-tilt), remove mask, begin rescue breathing, signal for help, tow to exit.

Safety note: Always have a dedicated water-safety observer (a classmate or instructor not acting as victim) present during pool rescue exercises. Follow your facility's lockout/tagout procedures for pool equipment. Wear appropriate PPE—wetsuit if water is cold—and inspect all scuba gear using a full buddy-check before entering water.

Open-Water Scenario: What to Expect

Your instructor will run a timed, full-sequence scenario:

1. Missing diver: Deploy an appropriate search pattern (expanding square or U-pattern) based on last-known position.

2. Locate and surface the diver: Establish positive buoyancy for yourself and the victim.

3. Airway and rescue breathing: Establish airway before removing the mask. Begin rescue breathing immediately if the diver is not breathing.

4. Tow to exit: Maintain rescue breathing every five seconds throughout the tow.

5. Transition to CPR/AED: Once on the surface, begin compressions if there is no pulse, attach and use the AED as soon as possible.

Your evaluator will mark against the PADI Rescue Diver performance requirements checklist. Three actions are automatic critical failures: failure to establish and maintain the airway, failure to summon help, and abandoning the victim at any point.

Safety and Professionalism on Evaluation Day

Complete a full buddy gear check with your partner before every open-water dive.
Never skip the pre-dive site assessment—note entry/exit points, currents, and distance to EMS access.
If you feel unwell, report it before gearing up; pushing through illness increases your own risk.
Treat the training AED and CPR mannequin with the same urgency you would in a real emergency—muscle memory built here saves lives.

Know the material, trust your pool practice, and execute each step deliberately. Rescue diving is about controlled, methodical action—not speed for its own sake.

Key terms10

Critical Skill FailureA performance error during a PADI evaluation that automatically results in an unsuccessful outcome for the scenario, regardless of how well other skills were executed; examples include failure to maintain the victim's airway, failure to summon help, and abandoning the victim.

Emergency Action Plan (EAP)A pre-established, site-specific sequence of steps to follow when a dive emergency occurs, beginning with summoning emergency medical services and assigning roles before or during the rescue response.

In-Water Rescue BreathingThe technique of delivering ventilations to a non-breathing diver using a pocket mask or face shield while simultaneously towing the diver toward the exit point, providing one breath approximately every five seconds.

Rescue TubeA buoyant foam cylinder with an attached tow line and strap used to support a distressed or unresponsive diver at the surface and to create a physical barrier between the rescuer and a panicking diver.

Panicked DiverA diver who has lost cognitive control due to acute stress, typically exhibiting wide eyes, rapid uncontrolled movement, surface-seeking behavior, and the potential to submerge a rescuer; approached from behind or at an angle using a rescue tube as a barrier.

Controlled Emergency Swimming Ascent (CESA)A self-rescue ascent technique used when a diver's air supply is exhausted at depth; the diver ascends at a controlled rate while continuously exhaling to prevent lung overexpansion injury.

Automated External Defibrillator (AED)A portable electronic device that analyzes heart rhythm and, if a shockable rhythm is detected, delivers an electrical shock to attempt to restore normal cardiac function; used as part of the post-rescue care sequence following CPR initiation.

Task LoadingA condition in which a diver is overwhelmed by multiple simultaneous demands—equipment problems, navigation, conditions, communication—that exceed their cognitive capacity and can rapidly escalate to panic or error.

Search PatternA systematic underwater or surface search method, such as an expanding-square or U-pattern, used to locate a missing diver in a defined area based on their last-known position and prevailing conditions.

Pocket MaskA transparent, valved resuscitation mask placed over a victim's nose and mouth to allow the rescuer to deliver rescue breaths while minimizing direct contact; can be used effectively in water during a towing rescue.

In class: Review all PADI Rescue Diver knowledge review chapters—self-rescue, recognizing and managing stress in divers, emergency management and equipment, rescuing panicked and unresponsive divers, and post-rescue care—through written practice questions and case-study discussion, targeting the PADI minimum passing percentage on every section. · In the pool, practice and self-evaluate each PADI Rescue Diver confined-water exercise: tired-diver tow, panicked-diver approach and control, equipment removal in water, in-water rescue breathing while towing, and unresponsive-diver-at-surface management including mask removal and ventilation. · Conduct a timed, full open-water rescue scenario—missing diver search pattern, locate and surface an unresponsive diver, tow to exit, transition to CPR with AED use—with a classmate acting as victim and instructor evaluating against the PADI Rescue Diver performance requirements checklist.
Materials: PADI Rescue Diver Manual (current edition), PADI Rescue Diver knowledge review forms, pool or confined water, full scuba unit (BCD, regulator, wetsuit, fins, mask, weight system), rescue tube, pocket mask, training AED, CPR mannequin, PADI skill evaluation checklist
Check: All PADI Rescue Diver knowledge review sections scored at or above PADI passing standard; open-water rescue scenario evaluated with zero critical skill failures on the PADI performance checklist (critical failures = failure to establish and maintain airway, failure to summon help, abandoning victim).

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.