quiz 30 quiz

Question 1

Your patient has lost approximately 20 percent of his total blood volume. He is anxious, restless, and has cool, clammy skin. In which stage of hemorrhage is he?

Select one:

a. Stage 1
b. Stage 2
c. Stage 3
d. Stage 4

Answer 1

b. Stage 2

Question 2

The step in the clotting process in which the
smooth blood vessel muscle contracts, reducing the vessel lumen, is called the:

Select one:

a. platelet phase.
b. vascular phase.
c. coagulation phase.
d. aggregate phase.

Answer 2

b. vascular phase.

Question 3

The first step used to control external bleeding
is:

Select one:

a. a tourniquet.
b. pulse pressure points.
c. direct pressure
d. elevation.

Answer 3

c. direct pressure

Question 4

The network of fibers that stick together, form
a strong protein mesh, and entrap red blood cells, to form a stronger, more
durable clot is:

Select one:

a. platelets
b. hemoglobin.
c. fibrin.
d. plasma

Answer 4

c. fibrin

Question 5

The blood vessels that are called the
“capacitance system” are the:

Select one:

a. veins.
b. arteries.
c. capillaries.
d. arterioles.

Answer 5

a. veins.

Question 6

One of the factors that can hinder the clotting
process is:

Select one:

a. immobilization.
b. dehydration.
c. fever.
d. medications such as aspirin.

Answer 6

d. medications such as aspirin.

Question 7

The vascular system consists of three types of
vessels. Which of the following statements is TRUE regarding arteries?

Select one:
a. Arteries are relatively large, normally twice
the size of veins.
b. Arteries carry only oxygenated blood.
c. Arteries carry blood from the heart to the body
tissues.
d. Arteries contain about 64 percent of the total
blood volume.

Answer 7

c. Arteries carry blood from the heart to the body tissues.

Question 8

Venous bleeding is usually:

Select one:

a. bright red and spurting in nature.
b. dark red and flowing.
c. oozing and quick clotting.
d. dark red, forming droplets on the skin.

Answer 8

b. dark red and flowing.

Question 9

Patients with epistaxis should be placed:

Select one:

a. with their feet elevated to compensate for decreased blood pressure.
b. in a supine position.
c. in the recovery position.
d. in a prone position.

Answer 9

c. in the recovery position.

Question 10

The molecule in the blood to which oxygen
attaches is:

Select one:

a. cytoplasm.
b. serotonin.
c. hemoglobin.
d. globulin.

Answer 10

c. hemoglobin.

Question 11

Recent evidence suggests that __________________
may NOT be as good an injury severity predictor as once thought.

Select one:

a. a decrease in blood pressure time
b. the mechanism of injury
c. the patient’s capillary refill
d. unconsciousness

Answer 11

b. the mechanism of injury

Question 12

Blood volume moved by the heart in one minute is
referred to as:

Select one:

a. minute volume.
b. stroke volume.
c. cardiac output.
d. end diastolic volume.

Answer 12

c. cardiac output.

Question 13

The layer of an artery that controls the vessel
lumen size is the:

Select one:

a. tunica adventitia.
b. tunica media.
c. tunica arteriole.
d. tunica intima.

Answer 13

b. tunica media.

Question 14

The population MOST at risk for trauma and
trauma death is the:

Select one:

a. young adult female
b. young adult male.
c. infant.
d. elderly.

Answer 14

b. young adult male.

Question 15

Starling’s law of the heart is:

Select one:
a. the conduction of electrical stimuli causing the
heart to contract.
b. the process by which arteries contract or
dilate, depending on the needs of cells for oxygenated blood and waste product
removal.
c. the process by which an increase in cardiac
output occurs in proportion to the diastolic stretch of the heart muscle fibers
d. the process by which arteries contract in
response to a drop in blood pressure caused, for example, by severe hemorrhage.

Answer 15

c. the process by which an increase in cardiac output occurs in proportion to the diastolic stretch of the heart muscle fibers

Question 16

Stroke volume is predicated by:

Select one:

a. preload, afterload, and blood pressure.
b. preload, afterload, and cardiac contractility.
c. preload, afterload, and end diastolic pressure.
d. preload, afterload, and heart rate.

Answer 16

b. preload, afterload, and cardiac contractility.

Question 17

If a decision is made to use a tourniquet to
stop external hemorrhage, an important point to remember is that:

Select one:
a. the accumulation of lactic acid, potassium, and
anaerobic metabolites can occur with tourniquet use.
b. the tourniquet should be released every 10
minutes to maintain circulation.
c. you should use a thin or narrow constricting
device to avoid tissue damage.
d. you should apply the tourniquet properly so that
arterial blood flow remains intact.

Answer 17

a. the accumulation of lactic acid, potassium, and anaerobic metabolites can occur with tourniquet use.

Question 18

The vessels that are only one cell thick, and
allow efficient gas and metabolic substrate movement into and out of the
interstitial space are called:

Select one:

a. arterioles.
b. capillaries
c. venules.
d. veins

Answer 18

c. capillaries

Question 19

Platelets are:

Select one:
a. important for clotting and blood vessel repair.
b. one of the red blood cells
c. one of the fragments of cytoplasm that
circulates in the blood.
d. iron-based cells that bind with oxygen.

Answer 19

a. important for clotting and blood vessel repair.

Question 20

The sympathetic nervous system is the division
of the autonomic nervous system that:

Select one:

a. controls vegetative functions.
b. regulates sleeping patterns.
c. increases heart rate.
d. regulates the digestive system.

Answer 20

c. increases heart rate.