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5 Cards in this Set
- Front
- Back
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Factors affecting block height |
Baricity, dose; less: LA volume, concentration, temperature; CSF volume, advanced age, pregnancy; less: height, weight, intraabdominal pressure; Patient position; less: level of injection, needle orifice direction |
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Density of CSF & change with temperature |
1.0003±0.003 g/mL, density decreases with increasing temp. |
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Fluid mix and baricity |
5-8% dextrose, hyperbaric; saline, isobaric; distilled water, hypobaric |
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Bimodal distribution of spinal height from lumbar lordosis |
Pooling in thoracic kyphosis vs. sacrum |
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Isobaric vs. hyperbaric |
Lower block height than hyperbaric; greater variability in height than hyperbaric |
