Chapter 38 -oxygen Therapy Flashcards
What are the five patient rights of drug administration?
- right drug
- right dosage
- right patient
- right route of administration
- right time
What is PaO2?
Partial pressure of oxygen in Arterial blood
What is Sa02?
Saturated percent oxygen in arterial blood
What is SPO2?
Saturated percent oxygen in peripheral blood
What are AARC guidelines for indication of oxygen therapy?
4 things
- PAO2 less than 60 mm Hg or SPO2 less than 90%
- severe trauma
- hypoxemia suspected
- acute MI
What’s a good rule of thumb when choosing FiO2 for oxygen therapy?
Choose the lowest possible FiO2 that can adequately oxygenate the patient
Describe the oxygen toxicity cycle
O2 toxicity
To
Increased shunting
To
Low Pa02
To
Increased FiO2
To
O2 toxicityWhat is depression of ventilation?
- Occurs in COPD patients with hypercapnia
- ventilation goes down as oxygen levels go up
What are the general goals oxygen therapy?
- to fix hypoxemia
- To decrease work of breathing
- lessen the work on the heart that hypoxemia creates
What is a low flow oxygen delivery system?
- only a small portion of inspiratory vol comes from device
- variable FiO2 due to inconsistent breathing of patient
What position should the prongs of a nasal cannula be facing?
Down
What are some bad things to monitor with nasal cannula?
- Skin irritation due to long use
- May need to use humidifier if nasal area seems dry
What’s the FI O2 range for a nasal cannula?
At what Lpm
22% at 1L
44% at 6L
What is a transtracheal catheter?
A catheter used to administer oxygen through a small surgical incision in the trachea
What is 2 benefits of using a transtracheal Catheter?
- reduced oxygen flow need due to direct insertion into trachea
- it can be hidden under the patient shirt due to area of incision
What is a drawback of using a transtracheal catheter or a nasal catheter?
Mucus can plug the hole that leads into the airway blocking oxygen administration
When would you use a simple mask?
When there was no nasal cannula available in emergency situations or if nasal cannula is contraindicated due to skin breakdown and such
What’s the FI O2 range for simple mask?
.35 to .50
What is a partial rebreathing mask?
A simple mask with the reservoir bag attached to it.
- oxygen is partially filled in the bag and patient Partially exhales into the bag as well
What is a general rule for partial rebreather and nonrebreather masks?
There should be enough flow to adequately refill the reservoir bag with oxygen
Describe a non-rebreather mask
- same as a partial rebreather except for
- three one-way valves, two valves covering the portholes on the mask and one valve covering the bag
When would you use a non-rebreathing mask?
Patients requiring high amounts of oxygen for a short period of time. Like: -acute heart failure -trauma -CO poisoning
What’s the general flow range for nonrebreather?
10 to 15 L per minute
What’s the FI O2 arrange for a non-rebreather?
.60 - .80
