An accurate test for how long does nicotine stay in your system can be performed via blood test. If a laboratory is testing for nicotine, it should be performed within 3 days of smoking. It is better for a laboratory to test for cotinine as it remains in the blood stream for about 10 days after smoking.
The pH in the human digestive tract varies greatly (see Human Digestive Tract pH Range Chart on the left side). The pH of saliva is usually between 6.5 - 7.5. After we chew and swallow food it then enters the fundic or upper portion of the stomach which has a pH between 4.0 - 6.5.he pH of any solution is the measure of its hydrogen-ion concentration. The higher the pH reading, the more alkaline and oxygen rich the fluid is. The lower the pH reading, the more acidic and oxygen deprived the fluid is. The pH range is from 0 to 14, with 7.0 being neutral.
A: Probably not. Although normal human body temperature is usually stated as 98.6 F (37 C) orally, it actually ranges from 97.5 to 98.8 F (36.4 to 37.1 C). Some people have temperatures in the 96 F range and feel fine. Your body temperature is not considered dangerously low until it is below 95 F (35 C). Mild reductions in body temperature are often temporary and don't indicate a serious problem or condition. For example, your temperature normally is lower in the morning than in the evening.