Oxygen therapy
- Patients
with respiratory dysfunctions are treated with oxygen inhalations it relieve
hypoxemia. The normal amount of oxygen in the arterial blood should be in the
range of 90 – 100 mmHg.
- If
it falls below 60mmHg irreversible physiological effects may ocuur, It is
urgent to correct the hypoxemia promptly.
- Tissues
vary in their oxygen requirements the cerebral cells receives 20% of the body’s
oxygen ( O2 ) supply and can live only for a few minutes ( 5 – 7 Min ).
- If this o2
supply is out off other cells such as myocardium can survive little more
without a fresh supply of oxygen ( O2 ).
- Remember
that the Oxygen (O2 ) administration treats the effects of oxygen (O2)
deficiency. But it doesn’t correct the underlying cause.
Indications :
Cyanosis :
Defined as the bluish color of the Skin, Nail beds and
mucous membrane resulting from a decreased amount of oxygen ( O2 ) in the Hb of
the blood.
Breathlessness of labored breathing
:
Ex : Breathlessness may be caused by certain diseases such as
Asthma, emphysema, pulmonary embolism, coronary
thrombosis and other cardiac
insufficiencies.
An environment low in oxygen ( O2 )
content.
Anemia :
Deficiency of either quality / quantity of red corpuscles
in the blood giving rise to symptoms of hypoxemia.
Diseases :
In which the oxygen ( O2 ) across the alveolar capillary
membranes.
Ex : Pulmonary edema, Pneumonia,
Chest injuries.
- Patients whose respiratory capacity is diminished by
some diseases or conditions.
Ex : Atelectasis, Pneumonectomy, Thormoplasty.
- Poisoning with chemicals that alters the tissues
ability to utilize the oxygen ( O2 ).
Ex : Cyanide poisoning.
·
Shock and circulatory failures.
·
Hemorrhage and air hunger.
·
Patients under anaesthesia.
·
Patients who are critically ill.
·
Patients with psychologically induced breathlessness.
Ex : Anxiety, Neurosis.
·
Asphyocia : Condition in with there is a lack of oxygen ( O2 ) supply in the lungs
leading to unconsciousness caused by the bleeding of air passage with foreign
bodies.
Ex : Drowing, Electrical shock,
Inhalation of poisonous gases.
