Page 1 of 142
NLN PAX-NEX SCIENCE STUDY EXAM NEW VERSION
WITH COMPLETE 300 QUESTIONS AND CORRECT
DETAILED SOLUTIONS LATEST UPDATED VERSION JUST
RELEASED
A person who was in an auto accident has formed a blood clot at the site of injury. one event
that can lead to formation of a blood clot is that
red blood cells release hemoglobin
white blood cells release antibodies
bone marrow cells release platelet production
ruptured platelets release thromboplastin
ruptured platelets release thromboplastin
A physician measures the pulse and blood pressure of all patients on a routine basis. which of
these measurements show the normal BP values for a resting adult patient
125/95 mm Hg
100/80 mm Hg
120/80 mm Hg
72/120 mm Hg
120/80 mm Hg
, Page 2 of 142
A student focuses sunlight to a point with a thin converging (convex) lens. Which of these
direct measurements can the student make as a result of this experiment
The approximate wavelength of the light used
The approximate speed of the light
The approximate focal length of the lens
The approximate index of refraction of the lens material
the approximate focal length of the lens
A women suddenly chokes on a piece of food and clutches frantically at her throat. An
immediate remedy is to
have her bend forward and tell her to cough
insert a finger or a blunt object toward the back of the mouth
apply, quick, hard pressure successively to her abdomen, just beneath her diaphragm
phone emergency for help
apply, quick, hard pressure 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
methane
, Page 3 of 142
ammonia
carbon dioxide
hydrogen
carbon dioxide
Guard cells which can be found in the leaves of plants are closely associated with which of
these processes
reproduction of a new plant
evaporation of water from the plant
movement of organic and inorganic substances from soil to the plant
synthesis of organic substances in the plant
evaporation of water from the plant
If the medulla of the brain in a human was damaged, which of these conditions would most
likely result?
inability to remember
difficulty in breathing
inability to speak
blurred vision
difficulty in breathing
, Page 4 of 142
To sterilize a metal probe in the office, a dentist could use a steam sterilizer. If unavailable, the
next most effective method to sterilize the instrument would be
boiling it in water for 15 minutes
dipping it into a concentrated acid solution
heating it in a hot air oven at 160 * C for 20 minutes
washing it in soap and water
boiling it in water for 15 minutes
Heat energy is absorbed in which of these phase changes?
Br2 (l) -> Br2 (s)
Br2 (g) -> Br2 (l)
Br2 (l) -> Br2 (g)
Br2 (g) -> Br2 (s)
Br2 (l) -> Br2 (g)
The atoms of an element with seven valence electrons are most classified as
metals
nonmetals
NLN PAX-NEX SCIENCE STUDY EXAM NEW VERSION
WITH COMPLETE 300 QUESTIONS AND CORRECT
DETAILED SOLUTIONS LATEST UPDATED VERSION JUST
RELEASED
A person who was in an auto accident has formed a blood clot at the site of injury. one event
that can lead to formation of a blood clot is that
red blood cells release hemoglobin
white blood cells release antibodies
bone marrow cells release platelet production
ruptured platelets release thromboplastin
ruptured platelets release thromboplastin
A physician measures the pulse and blood pressure of all patients on a routine basis. which of
these measurements show the normal BP values for a resting adult patient
125/95 mm Hg
100/80 mm Hg
120/80 mm Hg
72/120 mm Hg
120/80 mm Hg
, Page 2 of 142
A student focuses sunlight to a point with a thin converging (convex) lens. Which of these
direct measurements can the student make as a result of this experiment
The approximate wavelength of the light used
The approximate speed of the light
The approximate focal length of the lens
The approximate index of refraction of the lens material
the approximate focal length of the lens
A women suddenly chokes on a piece of food and clutches frantically at her throat. An
immediate remedy is to
have her bend forward and tell her to cough
insert a finger or a blunt object toward the back of the mouth
apply, quick, hard pressure successively to her abdomen, just beneath her diaphragm
phone emergency for help
apply, quick, hard pressure 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
methane
, Page 3 of 142
ammonia
carbon dioxide
hydrogen
carbon dioxide
Guard cells which can be found in the leaves of plants are closely associated with which of
these processes
reproduction of a new plant
evaporation of water from the plant
movement of organic and inorganic substances from soil to the plant
synthesis of organic substances in the plant
evaporation of water from the plant
If the medulla of the brain in a human was damaged, which of these conditions would most
likely result?
inability to remember
difficulty in breathing
inability to speak
blurred vision
difficulty in breathing
, Page 4 of 142
To sterilize a metal probe in the office, a dentist could use a steam sterilizer. If unavailable, the
next most effective method to sterilize the instrument would be
boiling it in water for 15 minutes
dipping it into a concentrated acid solution
heating it in a hot air oven at 160 * C for 20 minutes
washing it in soap and water
boiling it in water for 15 minutes
Heat energy is absorbed in which of these phase changes?
Br2 (l) -> Br2 (s)
Br2 (g) -> Br2 (l)
Br2 (l) -> Br2 (g)
Br2 (g) -> Br2 (s)
Br2 (l) -> Br2 (g)
The atoms of an element with seven valence electrons are most classified as
metals
nonmetals
