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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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By definition, when a medication is administered intravenously, its bioavailability is 100%.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.