OXYGEN THERAPY - PowerPoint PPT Presentation

1 / 15
About This Presentation
Title:

OXYGEN THERAPY

Description:

... of 24-28% HIGH CONC (40-60%) 0 via high flow mask are particularly useful in acute type I respiratory failure because respiratory drive is high, such as acute asthma ... – PowerPoint PPT presentation

Number of Views:9864
Avg rating:3.0/5.0
Slides: 16
Provided by: seun60
Category:
Tags: oxygen | therapy

less

Transcript and Presenter's Notes

Title: OXYGEN THERAPY


1
OXYGEN THERAPY
  • Oyewole Deboye O.

2
  • Introduction
  • Conditions for oxygen therapy
  • Administration
  • Monitoring
  • Side effects
  • Conclusion

3
  • Oxygen therapy is the administration of oxygen as
    a medical intervention, which can be for a
    variety of purposes in both chronic and acute
    patient care
  • Oxygen is essential for cell metabolism
  • Room air contains 21 oxygen
  • Delivery of oxygen to tissues depends on
  • Inspired oxygen conc.
  • Alveolar ventilation
  • Ventilation-perfusion distribution within the
    lungs

4
  • 4. Hb conc.
  • Conc. of CO
  • Cardiac output
  • Distribution of capillary blood flow within the
    tissues
  • Oxygen levels in the blood can be helpful or
    damaging

5
Conditions for oxygen therapy
  • ACUTE CONDITIONS in emergency medicine
  • Resuscitation
  • Documented hypoxia
  • Severe respiratory distress (acute asthma or
    pneumonia)
  • Shock
  • Cor pulmonale
  • Acute myocardial infarction
  • Severe trauma

6
  • Pulmonary HTN
  • Major hemorrhage
  • Convulsion
  • Hypothermia
  • As home therapy to abort cluster headache
    attacks,due to its vasoconstrictive effect
  • Used as a drug delivery route as nebulizer mask
    for delivery of Salbutamol or Epinephrine

7
  • CHRONIC CONDITIONS
  • COPD
  • Lung fibrosis
  • Sleep apnoea
  • Kyphoscoliosis
  • Myopaties/muscular dystrophy
  • Brain stem lession
  • Right-to-left shunts

8
ADMINISTRATION
  • Source Pressure regulator
    flow meter(preset or selective)L/min
  • Supplemental oxygen
  • Nasal cannulae 3-6LPM, delivering 02 conc of
    24-40
  • Simple face mask 5-15LPM, delivering 02 conc of
    28-50
  • Venturi mask 1-2LPM, delivering 02 conc of 24-28

9
  • HIGH CONC (40-60) 02 via high flow mask are
    particularly useful in acute type I respiratory
    failure because respiratory drive is high, such
    as acute asthma,pneumonia,pul. edema,pulmonary
    embolus,ARDS.when used for prolonged periods,it
    should be humified by passing over warm water
  • LOW CONC (Venturi masks 24-28) are particularly
    useful in delivering controlled 02 therapy in
    type II respiratory failure.02 delivery through a
    nasal cannulae vary depending on minute
    ventilation,nasal blockage,and tendency to
    mouth-breath.humidification is not necessary as a
    high proportion of atmospheric air is mixed with
    02

10
  • In COPD, and type II respiratory failure,patient
    develop an abnormal tolerance to raised CO2 and
    may become dependent on hypoxic drive to
    breathe.In these patients, lower 02 conc is
    needed to avoid precipitating worsening
    respiratory depression.
  • Positive pressure delivery system is used in
    patient who are unable to breathe on their
    own.use of AMBU bag,Resuscitator used in surgery
    with anaesthetic machines.

11
MONITORING
  • In patient with acute respiratory failure, close
    monitoring is essential and aterial bld gases
    taken on presentation should be repeated within
    20min to establish that tx has achieved
    acceptable Pa02 levels ? 7kPa(55mmHg) or 02
    saturation ? 88

12
SIDE EFFECTS
  • Vasoconstrictive effect on the circulatory system
  • May increase the effect of stroke
  • Seizures
  • In infants,may cause blindness(promoting
    overgrowth of bld vessels in the eye obstructing
    sight.this is retinopathy of prematurity.
  • Also in infant, it may contribute to construction
    of a ductus ateriosus

13
  • In adult,pulmonary 02 toxicity manifested by
    pulmonary oedema and free radical damage leading
    to fibrosis.
  • Administration of high levels of 02 in patient
    with type II respiratory failure which reduces
    respiratory drive precipitating respiratory
    failure and can lead to death
  • RISK OF FIRE!!!

14
CONCLUSION
  • Oxygen is essential for cell metabolism, and in
    turn, tissue oxygenation is essential for all
    normal physiologic functions.
  • Prompt recognition of life threatening situations
    and immediate administration of oxygen
    appriopriately will benefit the patient in
    reducing morbidity and mortality.

15
  • Thank you for listening
Write a Comment
User Comments (0)
About PowerShow.com