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Cotinine has an in vivo half-life of approximately 20 hours, and is typically detectable for several days (up to one week) after the use of tobacco. The level of cotinine in the blood, saliva, and urine is proportionate to the amount of exposure to tobacco smoke, so it is a valuable indicator of tobacco smoke exposure, including secondary (passive) smoke. [14]
Hyperhomocysteinemia is a medical condition characterized by an abnormally high level of total homocysteine (that is, including homocystine and homocysteine-cysteine disulfide) in the blood, conventionally described as above 15 μmol/L. [ 1 ] As a consequence of the biochemical reactions in which homocysteine is involved, deficiencies of ...
Using biochemical feedback methods can allow tobacco users to be identified and assessed, and monitoring throughout an effort to quit can increase motivation to quit. [108] [109] Evidence-wise, little is known about the effects of using biomechanical tests to determine a person's risk related to smoking cessation. [110]
Cardiovascular disease is a catchall term for any condition that affects the heart or blood vessels. It can have many potential causes, including genetics, lifestyle habits, and underlying health ...
The LD 50 of nicotine is 50 mg/kg for rats and 3 mg/kg for mice. 0.5–1.0 mg/kg can be a lethal dosage for adult humans, and 0.1 mg/kg for children. [19] [20] However the widely used human LD 50 estimate of 0.5–1.0 mg/kg was questioned in a 2013 review, in light of several documented cases of humans surviving much higher doses; the 2013 review suggests that the lower limit causing fatal ...
Current (or recent) history of tobacco use. Presence of distal extremity ischemia (indicated by claudication, pain at rest, ischemic ulcers or gangrene) documented by noninvasive vascular testing such as ultrasound. Exclusion of other autoimmune diseases, hypercoagulable states, and diabetes mellitus by laboratory tests.
For example, heart attack symptoms in women can look different from heart attack symptoms in men. The Office on Women’s Health notes that women are more likely than men to have the following ...
Nicotine replacement therapy (NRT) is a medically approved way to treat people with tobacco use disorder by taking nicotine through means other than tobacco. [ 6 ] It is used to help with quitting smoking or stopping chewing tobacco. [ 1 ][ 7 ] It increases the chance of quitting tobacco smoking by about 55%. [ 8 ]