1.4 Oxygen Administration Flashcards Preview

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Flashcards in 1.4 Oxygen Administration Deck (18):
1

What conditions must a patient have for oxygen to be given?

SPO2 < 94% (CORD 88-92%)
or
Airway obstruction
or
Respiratory distress (CORD ?)
or
Shock
or
Inability to obey commands from TBI
or
Smoke inhalation
or
Carbon Monoxide poisoning

2

What does a pulse oximetry give a reading of?

How much oxygen is within arterial blood
(As a percentage of maximum capacity)

3

Which of the following is true?

A. Lower levels than normal of oxygen within the blood can cause blood vessels to vasoconstrict
Or
B. Higher levels than normal of oxygen within the blood can cause blood vessels to vasoconstrict.




B. Higher levels than normal of oxygen within the blood can cause vasoconstriction.

4

If oxygen levels are higher than normal in the blood, and vasoconstriction occurs what does this mean with regards to blood flow and perfusion?

Potential to lower blood flow to tissue and organs, particularly if blood flow is already low.



5

Name three instances/circumstances with a patient where cyanosis is difficult to detect?



1. Brown or black skinned people
2. People who are aenemic
3. People who have had carbon monoxide poisoning

6

What has happened to the haemoglobin if a patient is showing signs of cyanosis?

Haemoglobin does not have oxygen bound to it.

7

If oxygen levels are higher than normal in the blood, and vasoconstriction occurs what does this mean with regards to blood flow and perfusion?



Potential to lower blood flow to tissue and organs, particularly if blood flow is already low.

8

Is pulse oximetry reliabe?

No

9

What are some circumstances that can affect the pulse oximetry reading?

Patient is vasoconstricted
Patient is moving
Patient has very dirty fingers
Patient has been exposed to carbon monoxide

10

What is the administration rules for oxygen administration?

Simplest device and lowest flow to achieve desired SPO2.

11

What is the oxygen flow rate when using nasal prongs?

1-4 l/min

12

What is the oxygen flow rate when using the simple mask?

6-8 /min

13

What is the oxygen flow rate when using nubulised medicines?

8 l/min

14

What is the oxygen flow rate when using a reservoir mask?

10-15 l/min

15

What is the oxygen flow rate when using a manual ventilation bag?

10-15 l/min

16

What does an oxygen cylinder look like?

Black cylinder with a white top

17

What precautions must you take when using oxygen?

Lay cylinder on side.
Keep away from flame.

18

Which patients would you use a reservoir mask on?

Patients with severe hypoxia.

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