The “E” cylinder, used for transport, holds 22 cu ft (622 L) of O2.
How to calculate flow for liquid O2
One liter of liquid oxygen weighs 2.5 lb (1.1 kg).
multiply 344 x # of pounds
Indications for O2 therapy
2. Labored breathing or dyspnea
3. Increased myocardial work
Signs and Symptoms of Hypoxemia
3. Cyanosis (unless anemia is present)
4. Impairment of special senses 5. Headache
6. Mental disturbance
7. Slight hyperventilation (tachypnea)
Age (yr) Normal PaO2
80 mm Hg
70 mm Hg
4 types of Hypoxia
Stagnant circulatory hypoxia
Hypoxemic Hypoxia characteristics
Caused by lack of O2 in the blood
right to left shunt
what should be done for a patient who is hypoxic but is ventilating well (normal or low PaCO2)
What is the exception?
Place patient on CPAP
if the question states that the patient has hypotension, a low cardiac output, or an elevated intracranial pressure level. Positive pressure should not be administered because the increased intrathoracic pressure. may worsen these conditions. Thus in these situations, increase the FiO2.
Decreased Hb levels
Excessive blood loss
Stagnant (circulatory) Hypoxia
characteristics and causes
The O2 content and carrying capacity is normal but capillary perfusion is diminished.