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Trainee Bell Dive Supervisors > Medicine > Flashcards

Medicine Flashcards

1
Q

Pulmonary oxygen toxicity is an inflammatory response in the airway and lungs caused by?

A

A high PPO2
Above 0.6

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2
Q

Pulmonary Toxicity becomes a risk when O2 is breathes in excess of?

A

0.6bar for a prolonged period

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3
Q

Symptoms of Pulmonary Toxicity are

A

Tickling Cough
Substernal burning
Coughing uncontrollably
Acute respiratory distresse syndrome

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4
Q

UPTD limits in 24 hours

A

1425 units

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5
Q

When is CNS likely to occur?

A

There is no fixed O2 exposure at which CNS O2 ( Acute O2 Toxicity) becomes apparent

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6
Q

Signs and Symptoms of CNS:

A

V.E.N.T.I.D
Vision( tunnel)
Ears (ringing)
Nausea
Twitching
Irritability
Dizziness
Convulsions

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7
Q

HPNS stands for?

A

High Pressure Nervous Sydrome

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8
Q

HPNS is brought on by:

A

Fast compression rates to depth( rule of thumb the deeper you dive the slower the compression)

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9
Q

Symptoms of HPNS are:

A

Coarse tremors
Un coordination
Jerky movements
Disorientation
Convulsions

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10
Q

Hypercapnia ( high levels of CO2 in your blood) causes:

A

-Increases work load
-Over breathing a hat
-Pre existing medical condition
-Failure of CO2 absorption
-large dead space
- CO2 in gas mix

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11
Q

What is a PFO

A

Patent Foramen Ovale

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12
Q

What does pressurised gas de solve into?

A

The Blood Plasma

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13
Q

Is it true that chest pain is gastritis

A

True

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14
Q

A ventilator is part of the DMAC 028 list

A

True

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15
Q

Hypothermia occurs when the body core drops to below?

A

35°C

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16
Q

After a Pulmonary Barotrauma, a diver may not return to diving before?

A

At least 3Months after full recovery

17
Q

A vestibular bend is most likely to occur in which of the following has exchanges?

A

Gas to Air

18
Q

Complete Nitrogen de saturation takes

A

24 hours

19
Q

Pain only DCI

A

Skin: itchy and or Rash
Joint: painful at site
Muscle: localised at site

20
Q

Serious DCI Spinal, Cerebral, Vestibular
( within 20minutes of surfacing)

A

Numbness or tingling
Weakness or Paralysis
Girdle pain
Loss of bladder control
Headache and Dizziness
Hearing difficulties
Confused
Personal change
Paralysis down one side
Collapse
NOTE: pain in the mid thigh may indicate Spinal DCI

21
Q

Vestibular DCI

A

Vertigo
Nausea
Dizziness
Hearing loss
Nystagmus

22
Q

If a diver is involved in an uncontrolled accent.

A

Treat for AGE

23
Q

Serious DCI and AGE present themselves,

A

Shortly after the diver has surfaced

24
Q

Treatment for a DCI or AGE

A

Recompress according to company policy.
Place on Bibs
Conduct Neurological examination as early as possible

25
Q

Hyperthermia starts at, what temperature and what are the symptoms? How would you treat them?

A

39°C
Headache
Dizziness
Nausea
Lethargic
Low blood pressure
Raised pulse
Treatment:
Cool
Rehydrate
Rest

26
Q

Hypothermia onset, symptoms and treatment

A

35°C
Speech impaired
Fixes ideas
Sluggish reactions
Confusion
Amnesia
Treatment:
Rewarm slowly
Space blanket/ body heat
O2
IV

27
Q

Heat Stroke symptoms and treatment

A

Skin dry
Skin hot to touch
Flushed face
Dilated pupils
Weakness
Convulsions
Pulse rapid and weak
Shallow rapid breathing
Treatment:
Immediately cool
IV
Cooling packs

28
Q

Barotrauma

A

Pressure Injury

29
Q

Aural Barotruama

A

Middle ear Squeeze:
Blocked eustachian tubes
Burst eardrum

30
Q

Subcutaneous Emphysema

A

Gas trapped under the skin around the neck, shoulders and armpits
SYMPTOMS:
Puffiness around the neck, horse voice, crepitus

31
Q

Mediastinal Emphysema

A

Gas trapped in space between the heart and lungs and trachea
SYMPTOMS:
Difficulty breathing, pain behind sternum, hoarse voice

32
Q

Pneumothorax

A

Punctured lung, gas leaking from the lung into the chest cavity
SYMPTOMS:
Chest pain, restricted breathing and chest movement
TREATMENT:
STOP Decompression give raises O2 on bids
DONOT RECOMPRESS UNLESS LIFE THREATENING

33
Q

Tension Pneumothorax

A

Symptoms: Chest pain, restricted breathing, deviated Trachea
Treatment:
Stop decompressing
Put on Bibs O2
Chest drain

34
Q

OXYGEN TOXICITY
Hyperoxia ( too much 02)
CNS(Acute)

A

Cause by breathing O2 with PP02 1.6bar and above
SYMPTOMS:
Vision
Ears
Nausea
Irritability
Dizziness
Convulsions
TREATMENT:
Remove bibs
Stop decompression
Check for injury
Protect airway
Protect from self harm

35
Q

OXYGEN TOXICITY
Pulmonary(Chronic)
Breathing O2 for long periods above 0.6bar or 600mb

A

Symptoms:
Tickly cough
Dry irritated
Tight chest
Burning sensation in lungs
Persistent dry cough
Painful finger tips
Shortness of breathe

TREATMENT:
Remove Bibs
Observe patient
Check Neurological state

36
Q

Hypoxia ( partial lack of O2)

A

PPO2 less than 16%, 0.16bar or 160mb
SYMPTOMS:
Cyanosis( blue fingers and earlobes)
Breathlessness
Increased heart rate

37
Q

What is the purpose of decompression in treatment of a arterial gas embolism(AGE)

A

To reduce the size of the bubble causing the embolism

Trainee Bell Dive Supervisors (7 decks)

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