Approximately How Many Cigarettes Does an Adolescent Have to Smoke

question 101

Multiple Choice

Approximately how many cigarettes does an adolescent have to smoke to increase his/her chance of becoming an addicted and habitual smoker for life?

• A)25 or about 1 pack
• B)50 or about 2 packs
• C)10 cigarettes
• D)about a carton of cigarettes

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Definitions:

QRS Complex

A series of deflections in an electrocardiogram (ECG) that represents ventricular depolarization before ventricular contraction.

P-R Segment

The P-R segment in an electrocardiogram represents the period between the end of atrial depolarization and the start of ventricular depolarization.

Auscultated

The act of listening to the sounds made by internal organs, especially the heart and lungs, typically with a stethoscope, to diagnose medical conditions.

Pulmonary Semilunar

A valve between the right ventricle of the heart and the pulmonary artery that prevents blood from flowing back into the heart chamber after it has been pumped out.