answers
Most common cause of diver emergencies - ** VERIFIED ANSWERS **✔✔poor judgment
Three things to consider before attempting an in water rescue - ** VERIFIED ANSWERS **✔✔1. It's
always better to extend something, throw floatation device, or use a boat or watercraft than to jump
in.
2. Do you have the necessary equipment and training
3. Avoid putting yourself in danger.
Diver stress - ** VERIFIED ANSWERS **✔✔Physical or mental tension that results in physical,
chemical, and/or emotional changes in the body
causes and examples of physical stress - ** VERIFIED ANSWERS **✔✔- cold/heat
- seasickness
- gas narcosis
- fatigue
- illness/injury
- alcohol/drugs
- equipment malfunctions
psychological effects of physical stress - ** VERIFIED ANSWERS **✔✔- being tired can trigger
someone to believe they will not make it to shore safely
- overexerting can make you believe your regulator can't deliver enough air
- a task loaded diver may become overwhelmed and unable to preserve personal safety
,causes of psychological stress that aren't physical - ** VERIFIED ANSWERS **✔✔any perception
that something threatens a divers well being. examples: belief that a dive is too expensive, peer
pressure, mental task loading, perception of a threat.
Perceptual narrowing - ** VERIFIED ANSWERS **✔✔A decrease in broad awareness through close
focus on a perceived threat or the solution to that threat.
Supplies you should have in your First Aid Kit - ** VERIFIED ANSWERS **✔✔- latex gloves
- pocket mask w/ one way valve for rescue breathing
- ventilation barriers
- eye protection
- face mask
- Emergency First Response Participant Manual
- PADI Accident Management Workslate
- Pad of paper/blank slate
- Reference materials
- Cell phone w/ power adapter
- Large absorbent dressings for wounds
Pocket Mask & its advantages - ** VERIFIED ANSWERS **✔✔A mask specifically for rescue
breathing. Simplifies getting an effective seal and head position, reduces worries about disease
transmission, one of the most effective ways to provide inwater rescue breathing for a non-breathing
diver, you can connect it to emergency oxygen to provide oxygenated air with your rescue breaths.
Why is it important to have emergency oxygen available? - ** VERIFIED ANSWERS **✔✔Because
prompt oxygen first aid has proven to make a dramatic difference in immediate and long term
treatment and recovery.
Three primary types of emergency oxygen systems - ** VERIFIED ANSWERS **✔✔-
Nonresuscitator demand valve units
, - continuous flow units
- positive pressure resuscitator
Nonresuscitator demand valve unit - ** VERIFIED ANSWERS **✔✔Oxygen flows only when the
diver inhales so these units reduce waste, with the proper mask it can deliver nearly 100 percent
oxygen. Best for rescue divers because patients require high concentration.
Continuous flow unit - ** VERIFIED ANSWERS **✔✔Release oxygen continuously, so more
wasteful. With proper flow (15 liters per minute) + nonrebreather mask w/ reservoir bag, can deliver
90 percent oxygen but could be as low as 60 percent.
Positive pressure resuscitator unit - ** VERIFIED ANSWERS **✔✔Requires special paramedic
training because it can injure someone if used improperly.
The 2 types of emergency oxygen systems recommended for rescue divers - ** VERIFIED ANSWERS
**✔✔- nonresucitator demand valve unit
- continuous flow unit
How much oxygen should be available - ** VERIFIED ANSWERS **✔✔637 litres (40 - 50 minutes)
AED (Automated External Defibrillators) - ** VERIFIED ANSWERS **✔✔Electronic instruments
that analyze an unresponsive divers heart rhythm, then guide you through the steps of providing a
shock if necessary.
Benefit of having an AED - ** VERIFIED ANSWERS **✔✔It shortens the interval between the loss
of heartbeat and attempts to restart the heart. In some instances it increases the chance of a diver
with cardiac arrest to survive.
Difference between victim and patient - ** VERIFIED ANSWERS **✔✔Victim is a diver who has yet
to receive help or is in the process of getting to a stable environment.
Patient is a diver receiving emergency medical care in a stable environment.