RCS O2 THERAPY Flashcards
the delivery of any
oxygen concentration greater than 21%
Supplemental oxygen administration
The delivery of supplemental oxygen necessary for the
correction or prevention of hypoxemia
Oxygen therapy
goal of O2 therapy
to maintain adequate tissue
oxygenation while minimizing
cardiopulmonary work
Clinical objectives of O2 Therapy
- Correct documented or suspected acute hypoxemia.
- Decrease symptoms associated with chronic hypoxemia.
- Decrease the workload hypoxemia imposes on the
cardiopulmonary system.
Indication of O2 Therapy
- Correct documented hypoxia. (PaO2 <60 torr or SaO2 <90% in
patients breathing room air.) - An acute care situation where hypoxia is suspected –
documentation for hypoxemia is required following initiation of
therapy. - Acute Myocardial Infraction.
- Post anesthesia recovery
Clinical signs and symptoms of Hypoxemia
▪ Tachycardia
▪ Dyspnea
▪ Cyanosis (unless anemia is present)
▪ Impairment of special senses
▪ Headache
▪ Mental disturbance
▪ Slight hyperventilation
Complications and Hazards of Hypoxemia
- Respiratory Depression or Depression of Ventilation
- Oxygen Toxicity or Hyperoxic Acute Lung Injury
- Retinopathy of Prematurity
- Absorption Atelectasis
- Reduced Mucociliary Activity
- Fire Hazard
hypoxemia demonstrating negligible increase in the PaO2 with the application of an acceptable level of oxygen
Refractory Hypoxemia
hypoxemia that demonstrates a significant response to an increase in the FiO2
Responsive Hypoxemia
Adequate or Normal Hypoxemia
80 – 100 mmHg
More than Adequate Hypoxemia
100 – 120 or >100 mmHg
Mild Hypoxemia
60 – 79 mmHg
Moderate Hypoxemia
40 – 59 mmHg
Types of hypoxia:
a. decrease O2 in inspired air
b. alveolar Hypoventilation
c. diffusion defect
d. V/Q (ventilation/perfusion) mismatch
e. shunting
Hypoxemic Hypoxia
Types of Hypoxia:
a. decrease Hemoglobin Level
b.CO (Carbon Monoxide) poisoning
c. excessive blood loss
d. methemoglobin
e. iron deficiency
Anemic Hypoxia
