Tobacco Flashcards
Proportion of current UK smokers
15%
How many deaths from COVID 19 in 2020 vs tobacco?
80,000 COVID
94,000 Tobacco
What is the biggest cause of mortality and morbidity in the NHS which is preventable?
Tobacco related disease
Health risks of smoking
2x CVS disease
5x more likely Influenza
3x sudden infant death risk
11x risk of lung cancer
COVID 19 vs Tobacco
COVID -
Communicable
Worldwide
Devastating financial impact
Tobacco -
Non-communicable
Worldwide
More deaths every year
Devastating financial impact
Health effects of Tobacco VS Covid
Tobacco:
Chronic
Lung, CVS
Malignancy
Pregnancy
50% Mortality
Covid:
Acute
Lung, GI, neurological
1% mortality
What are the 4 markers of addiction?
Use despite knowledge of harmful consequences
Cravings during abstinence
Failure of attempts to stop
Withdrawal symptoms during abstinence
What is cigarette smoking addiction?
Chronic relapsing disorder that starts in adolescence
Nicotine causes the addiction NOT the harmful tobacco
Why is nicotine addictive? What does it do?
Nicotine acts on nicotinic acetylcholine receptors
Stimulates dopamine release
= pleasure and satisfaction when smoking
What happens to nicotinic acetylcholine receptors following chronic nicotine exposure?
Enters upregulated state - more receptors, increased affinity and sensitivity to agonist
What does a drop in nicotine in the body lead to?
Craving and withdrawal
Puffs of cigarette ratio to binding
1-2 puffs binds 50% of the nAchR’s
When do Ach receptors desensitise following stopping smoking?
Takes 6-12 weeks for them to desensitise and go back to original
How fast is nicotine delivered to blood?
Within seconds - takes 10 minutes to hit peak
What are the methods of smoking cessation which mimik the delivery of nicotine to blood fast?
Spray - gets there the fastest
Vaping
Gum/tablet/inhaler
Patch - provides more constant levels in blood