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What are the factors associated with increased complications of an A-line? List 7.
1. Prolonged Cannulation
2. Repeated Attempts at Insertion
3. Hyperlipidemia
4. Female gender
5. Extra-corporeal circulation
6. Use of Vasopressors
7. Use of larger catheters in small veins
How would you minimize the risk of complications of an A-line? (5)
1. The ratio of catheter to a-line size should be small
2. Continuous saline flow of 2-3ml/hr
3. Limit flushing
4. Aseptic technique
5. Monitor perfusion with ipsilateral oximeter
Besides the Allen test, what are the other methods of assessing collateral perfusion? (4)
1. Palpation
2. Doppler
3. Plethesmography
4. Pulse oximeter
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