bleeb
Contributor
Could someone confirm what the labels are saying: Average total blood flow is 5.0 L/min. Of that, 0.7 L/min (14% of total) goes to the brain. 55 mL/100 g/min is the amount of blood per unit mass of brain. Etc.
Thanks.
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In Haldane's work back in the early 1900's he found that a human could be taken to 33' depth for many hours and then go back directly to the surface with acceptable (for that day and age) risk of DCS. He also observed that the same held true, more or less, for an ascent from 99fsw (4 ata) to 33 fsw (2ata). Again, a roughly 2:1 pressure gradient. That observation, with several refinements is still the basis behind much of decompression planning today. We have become more risk adverse, and the "minimum bends depth" for most models today is in the 20-25fsw range rather than the 33fsw of Haldanes 2:1 ratio.Can anyone clarify what this 2:1 decompression gradient is? I've seen it referred to in several places, but don't understand what it is.
Could someone confirm what the labels are saying: Average total blood flow is 5.0 L/min. Of that, 0.7 L/min (14% of total) goes to the brain. 55 mL/100 g/min is the amount of blood per unit mass of brain. Etc.
Thanks.