- | Page
PAX Science NLN Exams collection (ANSWERed) A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains
A.) carbon dioxide.
B.) hydrogen.
C.) oxygen.
D.) nitrogen.
ANSWER: carbon dioxide.
A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient?
- | Page
A.) 125/95 mm Hg
B.) 120/80 mm Hg
C.) 100/80 mm Hg
D.) 72/120 mm Hg
ANSWER: 120/80 mm Hg
A woman suddenly chokes on a piece of food and clutches frantically at her throat. An immediate remedy is to
A.) have her bend forward and tell her to cough.
B.) insert a finger or a blunt object toward the back of the mouth.
- | Page
C.) apply quick, hard pressures successively to her abdomen, just beneath her diaphragm.
D.) phone "emergency" for help.
ANSWER: apply quick, hard pressures successively to her
abdomen, just beneath her diaphragm.
An unknown gas is more dense than air, does not support combustion, and turns a limewater solution cloudy. This gas is most probably
A.) ammonia.
B.) methane.
C.) carbon dioxide.
C.) hydrogen.
- | Page
ANSWER: carbon dioxide.
Human testes produce
A.) eggs.
B.) follicle stimulating hormone.
C.) growth hormone.
D.) spermatozoa.