carbogen is a mixture of 95% oxygen with 5% nitrogen
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Answer:
Carbogen, also called Meduna's Mixture after its inventor Ladislas Meduna, is a mixture of carbon dioxide and oxygen gas. Meduna's original formula was 5% CO2 and 95% oxygen, but the term carbogen can refer to any mixture of these two gases, from 1.5% to 50% CO2.
Answer:
carbogen breathing (95% O2, 5% CO2) has been shown in both animal and human tumors. Tumor tissue oxygenation was measured in humans with the polarographic electrode system (Eppendorf) Po2 histograph. In one study, in 12 out of 17 patients with solid tumors there was a significant increase in median tumor Po2 during the first 10 minutes of carbogen breathing. Measurements were taken in accessible superficial tumors; 15 were epithelial tumors (most of them breast and lung carcinomas) and 2 were soft tissue sarcomas.