Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

LST Exam > PHYSIOLOGY > Flashcards

PHYSIOLOGY Flashcards

(96 cards)

Start Studying
1
Q

Neurological DCI with spinal involvement is usually associated with gas bubbles in which area of the body?

A

Lumber Area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What area of the body is Lumbar?

A

Lower back (spine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What area of the body is the Sacral area?

A

Below lumbar spine (back of pelvic cavity)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What part of the body is your Thoracic area?

A

Space in your chest (middle section of spine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What part of your body is the Cervical area?

A

Neck region of your spinal column

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

After a pulmonary barotrauma a diver may not return to diving before?

A

At least 3 months after full recovery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where in the body is the bone called the Patella?

A

In the Leg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A diver who surfaces uncontrollably from 36msw must be recompressed to?

A

18msw (or 60fsw) on O2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Body tissues receive oxygen from?

A

Capillaries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which chemical in the blood enables the blood to carry oxygen?

A

Haemoglobin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Oxygen is used during decompression to?

A

Improve the elimination of inert gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The vital capacity of the lungs is?

A

The greatest volume of air you can breathe in and out of your lungs in a single breath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the maximum depth for pure oxygen in a DDC?

A

18msw (2.8Bar)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

While on BIBS a diver complains of; Twitching of facial muscles, dizziness, tunnel vision and difficulty hearing, what is he likely suffering from?

A

Acute Oxygen Toxicity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

During decompression a diver complains of chest pain and difficulty in breathing what are the suffering from?

A

Pneumothorax

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

During decompression a diver complains of chest pain and difficulty in breathing what are the suffering from?

A

Pneumothorax

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

If the body temp is raised, what will happen to the solubility of gases in the body?

A

It will decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the three ways heat can be transferred?

A

Conduction
Convection
Radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A diver loses heat to the surrounding water by means of?

A

Conduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Heat loss by creating water currents (by heating the surrounding fluid) is transferred by?

A

Convection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Heat from the sun is transmitted by?

A

Radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Which heat transfer method is most significant to divers?

A

Conduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Body heating must be supplied below what depth?

A

50msw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Gas heating must be supplied below what depth?

A

150msw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Which tissue will absorb more gas in a given time?
The brain
26
What are giveaway symptoms of a neurological DCI
Weakness and fatigue
27
Air/gas liberated around the heart area is called?
Mediastinal Emphysema
28
Air or Gas embolism causes a blockage of?
Arterial Circulation
29
A diver complains of ear pain and vertigo whilst working between 0-15msw, what would you suspect?
Ear drum rupture
30
AODC recommended maximum PPO2 in diving?
1.6Bar
31
AODC recommended maximum PPO2 in the chamber?
2.8Bar
32
What is the likely first sign of CNS O2 toxicity in the DDC?
Quivering Lips
33
What’s usually the first sign of acute CNS O2 toxicity in the water?
Convulsion
34
A common sign of pulmonary O2 toxicity is?
Dry cough
35
During O2 breathing the pulse will?
Fall
36
When breathing air, nitrogen narcosis will begin around what depth?
30msw
37
DMAC 07 is?
Recommendations for flying after diving
38
DMAC 15 is?
Medical equipment to be held at the site of offshore diving operation
39
DMAC 28 is?
Provisions for equipment for saturation medical emergency
40
DMAC 31 is?
Accelerated decompression in emergency for saturation
41
Gas formation in tissues around the neck is called?
Subcutaneous Emphysema
42
Signs of acute O2 toxicity are likely after three hours of breathing a PPO2 of what?
1.6Bar
43
Signs of pulmonary O2 toxicity are encounter when the PPO2 over a long period exceeds?
500mb
44
When the heart stops, how many minutes will it take for brain damage to occur?
4 minutes
45
Serious DCI symptoms are unlikely to present themselves after a surface interval of how long
12 hours
46
During normal respiration at rest how much oxygen does the body move per minute?
250ml
47
During exercise how much oxygen is used by the body in a minute?
1000ml Therefore 500ml per minute is used for calculations involving a diver as per IMCA D 050
48
During normal breathing how much gas remains in the dead space?
150ml
49
How many breaths per minute does the average male take at rest?
12
50
During tidal breathing how much gas is moved per breath?
500ml
51
What is tidal volume?
The amount of gas moved during normal resting breathing
52
What is the total lung capacity? And how much can actually be moved during very deep breathing?
6000ml total lung capacity But 5000ml vital capacity
53
What is vital capacity?
The maximum volume of gas moved through the body during very deep breathing
54
What is the recovery position in first aid?
Lying down on side with leg extended
55
What is the red pigment in the blood called?
Haemoglobin
56
Which bloody vessel carries oxygen from the lungs to the heart?
Vein
57
Which blood vessel carries blood directly to the tissues?
Capillaries
58
How does oxygen assist decompression?
By blood perfusion
59
Where is the cochlea found?
Inner ear
60
Shortly after a diver, the diver complains of pins and needles in his toes and pain around the waist, what is the diagnosis?
Spinal bend
61
CO2 poisoning commences when the PPCO2 reaches approx?
20mb (2000ppm)
62
Carbon monoxide poisoning commences when the PPCO reaches approx?
0.02mb
63
A DCS on board must be reported to?
Offshore Manager or Master of the Vessel
64
Interstitial Emphysema is gas trapped where?
In the tissue outside of the lungs alveoli
65
Mediastinal Emphysema is gas trapped where?
The space in the chest between the two lungs
66
Gas formation in the tissue around the neck is called?
Subcutaneous Emphysema
67
A Pneumothorax is a collection of gas where?
Outside the lung but within the pleural cavity
68
The Imominate bone is found where?
Pelvis
69
When treating for hypothermia by submerging trunk in warm water, what should you look out for during treatment?
Cardiac Arrest
70
As per DMAC 007, what is the recommended time to wait before flying after an air saturation (more than 4 hours under pressure)?
Flights below 600m after 24hours but all other flights after 48hours
71
A squeeze occurs in a body cavity that has?
Rigid walls
72
Joint pain occurring 15 hours after a dive is probably due to?
Joint strain (basically not DCI)
73
Serious symptoms are unlikely to present themselves after a surface interval of?
12 hours
74
After a fast ascent, a diver suffers from visual distortion and loss of coordination, what is probably wrong?
Neurological DCI
75
Unconsciousness will occur when the PPCO2 reaches?
150mb
76
During a dive the bellman starts to complain of a headache, he is breathing rapidly and sweating, what is most likely wrong with him?
Hypercapnia
77
After an uncontrolled ascent to the surface, an air diver becomes confused and semi conscious. What is probably wrong with him?
Arterial Gas Embolism
78
Shortly after a diver, the diver complains of pins and needles in his toes and a pain around his waist, the pain is getting worse, what is your diagnosis?
Progressive Neurological DCI with girdle pain
79
Following successful treatment for DCI, a diver should not fly over 8000ft for how long?
72 hours for commercial flights if complete resolution after first recompression
80
In the lungs what is the function of the alveoli?
Gas exchange
81
If the body temperature is raised then what will happen to the solubility of gasses into the body?
It will decrease
82
What is a symptom of a static limb bend?
Localised Pain (not neurological)
83
High frequency hearing loss following a no stop dive would suggest?
Round window rupture
84
Air/Gas liberated around the heart area is called?
Mediastinal Emphysema
85
During oxygen breathing the pulse rate will?
Fall
86
During a surface decompression, a diver eyes are flicking from side to side, what is he likely to be suffering from?
Decompression sickness
87
Body tissues receive oxygen from?
Capillaries
88
A diver blows to the surface where he complains of difficulty breathing, chest pain and visual disturbance, what is he likely to be suffering from?
Arterial Gas Embolism
89
A diver becomes breathless and complains of nausea and tinnitus after 10 mins at 20msw, what could be the cause?
Carbon Monoxide poisoning
90
During compression, high pressure nervous syndrome (HPNS) can occur in dives in excess of?
100msw
91
What is the name for the centre of regulation of body heat?
Hypothalamus
92
Over half of the bloods volume consists of?
Plasma
93
Decompression sickness symptoms usually present within 30 minutes how often?
50% of cases
94
85% of the time Decompression sickness symptoms will present in the first?
1 hour
95
Middle ear barotrauma is caused by?
A blockage between Eustachian tube or outer ear
96
Immediately following a dive, a diver complains of loss of power and sensation down one side, severe headaches and seems drowsy What is he suffering from?
Arterial Gas Embolism

LST Exam (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions