Emergency Procedures & Rescue Techniques Flashcards

When towing an unresponsive diver at the surface, what is the preferred tow position?

Answer: Face-up tow keeping the airway clear and head above water

The face-up tow keeps the victim's airway clear and accessible for rescue breaths while moving toward safety.

A diver surfaces and signals 'okay' but then becomes unresponsive 30 seconds later. What should you suspect first?

Answer: Arterial gas embolism (AGE)

AGE typically causes rapid loss of consciousness within 10 minutes of surfacing, often preceded by a brief conscious period.

What is the correct compression-to-ventilation ratio for CPR in a two-rescuer adult scenario?

Answer: 30:2

Current guidelines call for 30 chest compressions followed by 2 rescue breaths in a two-rescuer adult CPR cycle.

During a rescue, a panicked diver grabs you and pushes you underwater. What is the best immediate response?

Answer: Submerge beneath the panicked diver to break their grip

Submerging takes you out of the panicked diver's reach because they will not follow you down and you can resurface safely behind them.

Which symptom is MOST associated with decompression sickness (Type II) rather than Type I?

Answer: Neurological symptoms such as paralysis

Type II DCS involves serious neurological, pulmonary, or cardiovascular manifestations, distinguishing it from the musculoskeletal symptoms of Type I.

What is the recommended first aid oxygen flow rate when using a non-rebreather mask for a diving injury victim?

Answer: 15 L/min or more

A flow rate of at least 15 L/min is needed to keep the reservoir bag of a non-rebreather mask adequately inflated and deliver close to 100% oxygen.

When performing in-water rescue breathing, how often should you deliver a breath to the victim?

Answer: Every 5 seconds

PADI recommends delivering one breath approximately every 5 seconds during in-water rescue breathing to mimic a normal respiratory rate.