Term
| Describe a low flow device. |
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Definition
-Total inspiratory gas volume is NOT delivered by equipment.
-FiO2 is variable and unpredictable |
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Term
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Definition
fraction of inspired gas.
o2 expressed in a decimal e.g. 40% O2= FiO2 of 0.40 |
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Term
| Describe a high flow system? |
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Definition
-Total inspiratory gas volume IS delivered by equipment.
-FiO2 is constant and predictable. Exact O2 % |
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Term
| Nasal Cannula- High flow or Low flow? |
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Definition
Low flow. up to 6 lpm
6-15 for High flow nasal cannula (still cosidered low flow) |
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Term
Aerosol mask- High flow or Low flow? |
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Definition
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Term
| Face Tent- High flow or Low flow? |
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Definition
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Term
| Non Rebreathing mask- High flow or Low flow? |
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Definition
Low flow.
*this mask is the highest low flow mask. |
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Term
| When do you need humidification on an oxygen set up? |
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Definition
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Term
| What equipment does not use a bubble humidifier? |
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Definition
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Term
| What is a permeable membrane oxygenator? |
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Definition
| gases in air diffuse at different rates, air is pulled through a permeable membrane, oxygen and water diffuse faster so that oxygen percentage of about 40% can be delivered to patient. |
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Term
| Oxygen concentrator might be used in: |
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Definition
| home care, nursing home, extended care facility or hospital wing where piped oxygen is not available. |
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Term
what is a Molecular sieve? |
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Definition
| air is pumped to sieves, sodium aluminum silicate absorbs nitrogen, gas flow is reversed periodically so absorbers can be purged, can deliver 90-99% oxygen at flows up to 10 lpm. |
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Term
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Definition
| Small catheter is placed through the tracheal wall and into the trachea. Usually in patients who require high flows. |
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Term
| Potential benefits of TTO: |
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Definition
| -lower oxygen requirements-more comfortable, nothing on ears-improved appearance-increased mobility, less oxygen needed-improved sense of smell and taste |
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Term
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Definition
| coughing, swelling around larynx, mucus plugging of catheter, catheter can be displaced, tract lost, infection, subcutaneous emphysema. |
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Term
| Reservoir cannulas: two types |
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Definition
| mustache cannula and pendant cannula |
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Term
| what is a Pulse demand oxygen delivery system |
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Definition
| oxygen only provided on inspiration, equipment senses patient’s inspiratory effort and delivers oxygen. Can select equivalent of 1-5 lpm. |
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Term
| Physiologic effects of hyperbaric oxygen: |
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Definition
| -drastically increase PO2 in plasma -enhances growth of new blood vessels-may increase WOB, gas more dense at higher pressure-vasoconstriction-shrinks air bubbles in blood vessels-lays down collagen bed better for healing of wounds |
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Term
| Two types of hyperbaric chambers: |
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Definition
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Term
| Side effects of Hyperbaric oxygen therapy: |
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Definition
| -Tympanic membrane rupture, more common if sinusitis or viral infection present -Pneumothorax-Air embolism-Fire-Claustrophobia -Reversible visual changes |
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Term
| Indications for hyperbaric oxygen: |
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Definition
| -air embolism -carbon monoxide poisoning-cyanide poisoning-decompression sickness-gas gangrene-refractory anaerobic infections-refractory osteomyelitis-skin grafts thermal burns wound healing |
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Term
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Definition
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