Troubleshooting for Low Flow Devices Used in Oxygen Therapy – Flashcards
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Nasal Cannulas
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no gas flow can be felt coming from a nasal cannula due to either a system leakage, the flow meter not being on, or an obstruction of the humidifier down the tube
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adjust the flow meter as needed; check connections of the system and repair or take the equipment out of service and replace
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humidifier pop off sounds due to an obstruction distal to the humidifier, the flow being set too high, or an obstruction of the naris in the nasal cannula
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find and correct the obstructions; lower the flow rate going into the cannula; use an alternative oxygen therapy device
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patient complains of soreness over the lip or ears due to irritation and/or inflammation from the cannula straps
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loosen straps on the cannula; place cotton balls at pressure points; use an alternate device
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Masks
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patient constantly removes the mask due to either claustrophobia or confusion
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use an alternative device; if impossible restrain or sedate the patient
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no gas flow is felt coming from the mask due to a system leak or the flow meter not being on
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adjust the flow meter; check the connections
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humidifier pop off sounds due to obstruction distal to the humidifier, a high input flow, or a jammed inspiratory valve
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find and correct the obstruction; temporarily omit the humidifier; repair or replace the mask
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patient develops erythema over the face and ears due to inflammation and irritation from the appliance or the straps
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reposition the mask and straps on patient so it is more comfortable, place cotton balls over the ear pressure points; and provide skin care to the patient
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the reservoir bag collapses on inhalation due to an inadequate flow of O₂
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increase the flow of O₂
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the reservoir bag remains inflated on inhalation due to a large mask leak or a jammed inspiratory valve
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correct leakage; repair or replace the mask
