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LIVES Level 4 PMA > BTS Emergency Oxygen Therapy > Flashcards

BTS Emergency Oxygen Therapy Flashcards

BTS guidelines on emergency oxygen therapy

1
Q

Lag time between change in blood oxygenation and change in sats probe reading

A

30 - 90 seconds

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2
Q

Target oxygen saturations

patient not at risk of Type II Respiratory Failure

A

94 - 98%

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3
Q

Target oxygen saturations in patient at risk of Type II Respiratory Failure

A

88 - 92%

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4
Q

Oxygen saturations below… x … mean a patient should be considered critically ill.
What action should be taken?

A

SaO2 < 85%

15 L/min oxygen via non-rebreathe mask

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5
Q

Critical Illnesses Requiring High Levels of Supplemental Oxygen
(10)

15 L/min via non-rebreathe mask or bag-valve mask.
Do not wait for oximetry readings.

A 
Cardiac Arrest or Resuscitation
Shock
Sepsis
Major Trauma
Major Pulmonary Haemorrhage
Drowning
Anaphylaxis
Status Epilepticus
Major Head Injury
Carbon Monoxide Poisoning [disregard oximetry]
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6
Q

Target saturations for ALL critically ill patients

A

94 - 98%

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7
Q

Oxygen Therapy for:

Cardiac Arrest

A

15 L/min via non-rebreathe mask or bag-valve mask.

Do not wait for oximetry readings.

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8
Q

Oxygen Therapy for:

Shock

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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9
Q

Oxygen Therapy for:

Sepsis

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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10
Q

Oxygen Therapy for:

Major Trauma

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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11
Q

Oxygen Therapy for:

Major Pulmonary Haemorrhage

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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12
Q

Oxygen Therapy for:

Drowning

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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13
Q

Oxygen Therapy for:

Anaphylaxis

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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14
Q

Oxygen Therapy for:

Status Epilepticus

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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15
Q

Oxygen Therapy for:

Major Head Injury

A

15 L/min via non-rebreathe mask.

Do not wait for oximetry readings.

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16
Q

Oxygen Therapy for:

Carbon Monoxide Poisoning

A

15 L/min via non-rebreathe mask.
Do not wait for oximetry readings.
Oximetry readings will likely be fictitiously high.

17
Q

Oxygen Therapy for:

Acute Hypoxaemia of Unknown Cause

A

SaO2 < 85%:
15 L/min via non-rebreathe mask.

Otherwise:
Aim for target saturations 94 - 98% using simple face mask or nasal cannulae

18
Q

Oxygen Therapy for:

Acute Asthma

A

CONSIDER NEBULISED SALBUTAMOL

SaO2 < 85%:
15 L/min via non-rebreathe mask.

Otherwise:
Aim for target saturations using simple face mask or nasal cannulae

19
Q

Oxygen Therapy for:

Acute Coronary Syndrome

A

Patients are often not hypoxaemic.
Oxygen is a vasoconstrictor so may be harmful.

Provide oxygen therapy if the patient is hypoxaemic.

20
Q

Oxygen Therapy for:

Stroke

A

Patients are often not hypoxaemic.
Oxygen is a vasoconstrictor so may be harmful.

Provide oxygen therapy if the patient is hypoxaemic.

21
Q

Oxygen Therapy for:

COPD Exacerbations in patients at risk of hypercapnic respiratory failure

A

SaO2 < 85%:
15 L/min via non-rebreathe mask.

Otherwise aim for 88 - 92% saturations
Aim for target saturations using venturi mask

22
Q

Oxygen Therapy for:

Suspected Paraquat Poisoning

A

SaO2 < 85%:
15 L/min via non-rebreathe mask.

SaO2 > 88%
Discontinue oxygen therapy

23
Q

High Concentration Reservoir Mask (Non-Rebreathe)

Concentration of oxygen delivered?

A

60 - 90% oxygen when used with 15 L/min

24
Q

Simple Face Mask

Concentration of oxygen delivered?

A

40 - 60% oxygen when used with 6 - 10 L/min

Flow rates < 5 L/min should not be used, as this can cause increased CO2 build-up.

25
Q

White Venturi Mask

A

28% Oxygen at 4 L/min

Use 6 L/min if RR > 30

26
Q

Blue Venturi Mask

A

24% Oxygen at 2 L/min

Use 3 L/min if RR > 30

27
Q

Yellow Venturi Mask

A

35% Oxygen at 8 L/min

Use 12 L/min if RR > 30

28
Q

Red Venturi Mask

A

40% Oxygen at 10 L/min

Use 15 L/min if RR > 30

29
Q

Green Venturi Mask

A

60% Oxygen at 15 L/min

Use reservoir mask if saturations cannot be maintained

30
Q

Nasal Cannulae

Oxygen concentration delivered at flow rate of 1 L/min

A

25%

31
Q

Nasal Cannulae

Oxygen concentration delivered at flow rate of 2 L/min

A

29%

32
Q

Nasal Cannulae

Oxygen concentration delivered at flow rate of 3 L/min

A

33%

33
Q

Nasal Cannulae

Oxygen concentration delivered at flow rate of 4 L/min

A

37%

Patients may experience discomfort and nasal dryness above this point, consider switching to a face mask to deliver higher oxygen concentrations.

34
Q

Nasal Cannulae

Oxygen concentration delivered at flow rate of 5 L/min

A

41%

35
Q

Nasal Cannulae

Oxygen concentration delivered at flow rate of 16L/min

A

45%

LIVES Level 4 PMA (7 decks)

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