nicotine dependence and smoking cessation Flashcards
exam 2
nicotine receptor associated with addiction
alpha4-Beta2 nicotinic receptor
nicotine stimulates
CNS nAch receptors leading to dopamine relsease
nicotine half life is
short only baout 2 hours
smoking is a slow or rapid delivery
rapid
repeated use of nicotine leads to
increase tolerance
nicotine withdrawal symptoms
negative effects: insomnia , anxiety
why do smokers keep smoking?
- pharmacologic addiction
- psychological dependence on smoking
smoking rates has decreased ?
yass, but it is uneven in groups
secondhand smoke exposure in adults? what about children?
adults: lung cancer and CHD
children: SIDS, asthma, ear infections and slowed lung growth
quitting is beneficial?
yasssss of course!!!
- increased life expectancy
most benefit if quit early but it is never to late
tx. with evidence of efficacy
- pharmacotherapy
- behavioral counseling
- combination
pharmacologic tx.
- nicotine replacement
- bupropion
- varenicline
skin patch (nicotine replacement)
- long acting, slow onset
- fixed dose but constant leads to best compliance because of simple to use
oral or nasal (nicotine replacement)
- short-acting and faster onset
- user controls dose leading to more fluctuations of nicotine blood levels
varenicline-chantix
- binds selectively to alpha4-beta2 nicotinic receptor
- has a dual mechanism: partial agonist (reduce craving by stimulating receptor) and antagonist (blocks nicotine from binding)
bupropion-zyban
- norepinephrine and dopamine reuptake inhibitor and releasing agent
- decrease craving
- decrease withdrawl symptoms
internet based interventions can lead to a ___ abstinence
6 month
5As model of breif counseling
- Ask
- advise
- assess
- assist
- arrange
physician intervention
it is good to to a routine advice but a brief counseling is even better
a newer way to assess
do not ask if a smoker if they are ready to quit just offer tx.
what about those who are not interested in quitting?
try to leave an open door; it is imperative to not judge and try to understand the patient’s view point
- it is still ok to give advice to quit by making suggesting to adopt a smoke-free home and car
Are e-cigarettes FDA approved?
Nope
Should E-cigarettes be used in Hospital and care services?
Nope