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O2 therapy procedure
1. GCS COLLEGE OF NURSING
AHMEDABAD
TOPIC: O2(OXYGEN)
THERAPY
PREPARED BY:
KHUSHBU PATEL
2. DEFINITION
Oxygen is a colorless, odorless,
tasteless and combustible gas.
Oxygen therapy is defined as the
administration of oxygen by
inhalation from a cylinder, piped in
system liquid oxygen reservoir or
oxygen concentration by various
methods to relieve anoxemia.
4. INDICATIONS
 Cyanosis.
 Breathlessness or labored breathing.
 High altitudes- environment low in oxygen
content.
 Shock and circulatory failure.
 Patients under anesthesia.
 Patients who are critically ill.
 Patients with a decreased respiratory capacity.
 Asphyxia.
5. COMPLICATIONS OF OXYGEN
THERAPY
 Infection- The use of the contaminated equipment can
cause an infection in the patient.
 Atelactasis- Collapse of alveoli develops as a result of
increased oxygen concentrations in the inspired air.
 Oxygen toxicity- the symptoms of oxygen toxicity
initially include those of a mild trachea bronchitis
starting as a tracheal irritation and cough.
 Drying of the mucus membranes of the respiratory
tract.
 Oxygen induced apnea- The carbon dioxide is
completely washed off from the blood by a high
concentration of oxygen. Carbon dioxide remaining in
the blood stimulates the respiratory centre.
 Combustion- fire.
6. METHODS OF OXYGEN DELIVERY
 Nasal catheter; Nasal catheters are used less
frequently these days. It involves inserting an
oxygen catheter/simple rubber catheter into the
nose upto the nasopharynx. It needs to be
changed at least every eight hours and inserted
into the other nostril, it is also painful and can
cause trauma. Thus, it is less desirable.
 Nasal cannula: A nasal cannula is a simple
comfortable device. The two cannula, about 1.5
cm long, protrude from the centre of a disposable
tube and are inserted into the nares.
7.  Trans- tracheal oxygen: In trans tracheal
oxygenation, oxygen is delivered directly into the
trachea via a catheter into the trachea through a
surgical opening in the lower neck.
 Oxygen masks/B.L.B. Mask (Boothby Lovelace
and Bulbulian): Oxygen mask is a device used to
administer humified oxygen. It is strapped to fit
snugly to the mouth and nose and is secured in place
with a strap.
 Oxygen tent/ the Seymour tent: When a patient has
facial injuries or for any other reason cannot tolerate
an oxygen mask, then this method can be used. The
tent is first flooded with oxygen and then a flow of 4-5
liters per minute is given
8.
9.
10.
11.
12. GENERAL INSTRUCTIONS
 Oxygen should be treated as drug; the five rights
of medication administration is also pertain to
oxygen.
 When using an oxygen cylinder or central supply
oxygen, use a regulator and humidifier.
 Every part of the apparatus should be clean
prevent infection.
 Change nasal catheter at least every eight hours
or more often to prevent blockage of the nasal
catheter by a mucus plug.
 When oxygen therapy is to be discontinued, it
should be done gradually.
13. CONTD……
 Pay attention to conditions that can interfere
with the flow of oxygen from source to the
patient. This may include tubing, loose
connections and faulty humidifying apparatus.
 Always keep a spare oxygen cylinder in close
vicinity.
 Watch the patients receiving oxygen therapy
continuously to detect the early sign of oxygen
toxicity.
 Since oxygen supports combustion, fire
precautions are to be taken when oxygen is on
flow.
14. CARE OF OXYGEN CYLINDER
 Always use the cylinder with metal case to
prevent the danger of falling and breaking.
 Oxygen cylinders should be placed at the head
end of the bed, away from the traffic areas where
these are likely to be knocked down.
 Any source of the fire should be kept away from
the cylinder for fear of fire.
 Oxygen cylinders should be stored in a cool
temperature away from the heaters.
15. CONTD…..
 The supply of the oxygen must always be
equipped with a regulator to control the flow of
gas and prevent wastage.
 Put the warning signs( “No Smoking”) in the unit
where oxygen is on.
 Mark the empty cylinders and send for filling.
 Inspect the apparatus at frequent intervals for
its working condition.
16. PROCEEDURE
 Preparation of the patient
 Check name, bed No., and other identification
marks of the patient. Check the diagnosis and
the need of the oxygen therapy.
 Check doctor’s order for initiation of the therapy
and the dosage.
 Assess the patient for any clinical anoxia.
 Assess the patient’s vital signs and breathing
patterns carefully before starting the therapy.
 Explain the need of the oxygen therapy, and the
sequence of the procedure.
 Gain the patient’s confidence.
 Keep the patient in a propped up position or
Fowler’s position.
17. PREPARATION OF ARTICLES
Articles Rationale
Oxygen cylinder with stand, central supply
oxygen with a flow meter, humidifier/ Wolff’s
bottle and connecting tubing.
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A tray containing
1.Nasal catheter/cannula /oxygen mask of an
appropriate size clean/ disposable type in a
covered container.
To deliver oxygen. To check the amount of oxygen
ongoing to the patient.
To humidify oxygen.
To prevent infection
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1. Water soluble lubricating jelly
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To lubricate the nasal catheter.
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1. Adhesive tape.
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To attach the nasal catheter.
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1. A bowl of water.
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To check oxygen flow.
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1. Flash light & tongue depressor
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To help to assess the correct placement of the catheter.
1. Swab sticks and normal saline in container. For cleaning nostrils.
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1. Kidney tray
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To receive the wastes and the used tongue depressor.
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1. Rag pieces or gauze pieces in a container.
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To wipe off the secretions from the nose and mouth
during the proceedure.
1. No smoking Indicator.
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To take fire precautions.
18. STEPS OF THE PROCEDURE
Steps Rationale Scientific
Principles
Nursing
Principles
Wash hands. Reduces transmission of micro-
organisms. Soap and water reduce
surface tension and thus remove the dirt
and check the growth of micro-
organisms.
Micro-
Biology.
Safety.
Attach cannula/ catheter
mask to oxygen tubing and
humidified oxygen source
adjusted to the prescribed
flow rate.
Prevents drying of nasal and oral mucous
membranes and airway secretions. Use of
a humidifier prevents drying of mucus
membranes.
Physics. Safety,
Comfort.
Place tips of cannula into the
patient’s nares. If mask,
apply snuggly to face.
Directs flow of oxygen into the upper
respiratory tract. Prevents loss of oxygen.
Therapu-
Etics,
effective-
ness,
safety
Check cannula/ equipment
every eight hours.
Ensures patency of cannula and oxygen
flow. Also ensure safe delivery of
prescribed oxygen.
Safety
19. Keep the
humidification jar filled
at all times.
Prevents inhalation of
dehumidified oxygen. Prevents
drying of mucus membranes.
Safety &
Thera-
Puetic
Effective-
ness.
Observe the patient’s
nares and superior
surface of both the ears
and skin breakdown.
Oxygen therapy can dry nasal
mucosa. Pressure on ears from
cannula tubing/ elastic can cause
skin irritation.
Safety,
Comfort.
Check the oxygen flow
rate and physician’s
orders every eight
hours.
Ensures delivery of the
prescribed oxygen flow rate.
Safety. Thera-
Peutics
Effective-
ness
Wash hands before
removing the oxygen
mask or tube.
Reduces transmission of micro
organisms.
Micro-
Biology.
Safety.
20. Inspect the patient
for relief of
symptoms
associated with
hypoxia.
Indicates that hypoxia is
reduced/treated.
Anatom
y &
Physio-
logy.
Thera-
peutics
Effectiv
e-ness.
Record procedure
in the nurse’s
notes.
Documents correct use of
oxygen therapy and the
patient’s response.
Safety,
Good
Workm
an-ship.
21. PROCEDURE- NASAL CATHETER
METHOD
Steps Reason
Wash hands. To prevent cross infection.
Measure the length of the nasal
catheter from the tip of the nose to the
ear lobe.
The catheter should extend from the anterior
nares to the level of the uvula. The tip should
be visible when the uvula is elevated. The
distance from the tip of the nose to the ear lobe
roughly equals the distance from the anterior
nares to the uvula.
If the catheter is not reaching the oro pharynx
there is a chance for the oxygen lost through
the mouth. If the tip goes beyond the level of
the uvula into the oesophagus, there is a
chance for the gas to be introduced into the
stomach and can cause distension of the
abdomen.
Check the apparatus for the working
condition.
To see whether the apparatus is in working
condition or not.
Attach the catheter to the connecting
tube and check the flow of the oxygen
through the catheter by submerging it
under the water in the bowl.
To assess the patency of the tube and to assess
the flow rate.
22. Attach the catheter to the connecting
tube and check the flow of the oxygen
through the catheter by submerging it
under the water in the bowl.
To assess the patency of the tube and to assess
the flow rate.
Lubricate the tip of the catheter
sparingly with water soluble jelly and
then check the flow by immersing it in
the water.
Lubricating the tube prevents irritation of the
nasal mucosa. Checking the flow of oxygen
again under the water helps to know whether
the terminal holes are plugged with the
lubricant.
23. Introduce catheter slowly into one of
the nostrils to the previously marked
distance. If any obstruction in
encountered withdraw the catheter a
little, rotate it and introduce it again.
Never use the force.
Forcing the catheter can cause injury to the
mucus membranes. It can also cause kinking
of the tube in the nasal cavity.
Check the position of the catheter in
the oropharynx at the level of the
uvula. It can be checked by asking the
patient to open his mouth widely,
depressing the tongue with a tongue
depressor and directing the flash light
into the throat.
Checking is done to make sure that the
catheter is positioned in a correct place and not
kinked.
Fix the catheter either over the
forehead or at the cheek with adhesive
straps. Secure the connecting tube to
the bed clothers or patient’s gown
using an elastic band and a safety pin.
24. AFTER CARE OF THE PATIENT
AND ARTICLES
 Stay with the patient till he/she is at ease.
 Keep the patient warm and comfortable.
 Evaluate the patient’s progress by observing the vital signs
and symptoms.
 Watch the patient for any deteriorating symptoms after the
removal of the oxygen inhalation. Inform the doctor.
 Record the procedure with date and time.
 Request for an arterial blood gas analysis at specified
intervals to make sure hypoxia is treated.
 Take all articles into the utility room.
 Clean nasal catheter with cold water, then warm soapy
water and finally with clean water. Boil and store or end
for sterilization.

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25. RECORD OF OXYGEN THERAPY
Name of the Patient:
Age:
Bed No;
Indoor No.
Dr’s Unit:
Date Time Temp
F
Pulse/
Min
Respi/
Min
Blood
Pressure
Mm Hg
O2 started
at
Flow
rate
Remarks