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This type of phenomenon will almost always be seen with drugs that target foreign pathogens capable of change, i.e., bacteria, viruses, fungi, parasites, etc. In addition to antibiotics, which target bacteria, antiviral and antifungal medications can also decrease in effectiveness overtime as the pathogens develop resistance mechanisms. For instance, HIV ...


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Breathing into a paper bag to control hyperventilation might improve hypocarbia, but should NOT be done because of the risks of hypoxia and death. This case report shows that breathing into a paper bag during hyperventilation can reduce partial pressure of oxygen by up to 42 mmHg (normal 80-100mmHg) and can result in death. As answered by @arkiaamu, a better ...


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