Trauma, Burns, and Bleeding EXAM NEWEST 2025 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+

Trauma, Burns, and Bleeding EXAM
NEWEST 2025 QUESTIONS AND
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY
GRADED A+
1. Which of the following components is LEAST crucial to the continuous circulation of
oxygenated blood throughout the body?
A) Heart
B) Spleen
C) Vasculature
D) Fluid volume - Correct answerB
Page: 1519
Type: General Knowledge

2. The cardiac cycle begins with the onset of myocardial contraction and ends:
A) as blood returns to the right atrium.
B) as both ventricles are filling with blood.
C) when the ventricles are emptied of blood.
D) with the beginning of the next contraction. - Correct answerD
Page: 1520
Type: General Knowledge

3. Afterload is defined as the:
A) pressure in the aorta against which the left ventricle must pump.
B) amount of resistance to blood flow offered by the heart valves.
C) amount of blood ejected from the ventricle with each contraction.
D) volume of blood remaining in the ventricles following contraction. - Correct
answerA
Page: 1520
Type: General Knowledge

4. Which of the following two factors DIRECTLY affect cardiac output?
A) Preload and afterload
B) Vessel size and stroke volume

,C) Stroke volume and pulse rate
D) Blood pressure and pulse rate - Correct answerC
Page: 1520
Type: General Knowledge

5. Which of the following statements regarding blood flow is correct?
A) Ejection fraction is the percentage of blood that the heart pumps per contraction.
B) If more blood returns to the heart, stroke volume decreases and cardiac output falls.
C) As more blood is pumped with each contraction, the ejection fraction increases.
D) The amount of blood that returns to the atrium remains fixed from minute to minute. -
Correct answerA
Page: 1520-1521
Type: General Knowledge

6. Hemoglobin functions by:
A) dissolving in blood plasma to create the partial pressure of carbon dioxide.
B) binding to oxygen that is absorbed in the lungs and transporting it to the tissues.
C) absorbing hydrogen ions in the blood in order to maintain acid-base balance.
D) transporting red blood cells throughout the body to ensure adequate oxygenation. -
Correct answerB
Page: 1522
Type: General Knowledge

7. What aggregates in a clump and forms much of the foundation of a blood clot during
the process of coagulation?
A) Fibrin
B) Calcium
C) Plasmin
D) Platelets - Correct answerD
Page: 1522
Type: General Knowledge

8. Perfusion is defined as:
A) the effective exchange of oxygen and carbon dioxide within the lungs and at the
cellular level.
B) the circulation of blood through an organ or tissue in amounts adequate to meet the
body's demands.
C) an ejection fraction that is adequate to maintain radial pulses or a systolic blood
pressure of at least 90 mm Hg.
D) the circulation of an adequate volume of blood to ensure uninterrupted cerebral and
myocardial oxygenation. - Correct answerB
Page: 1522
Type: General Knowledge

,9. Which of the following organs or body systems requires a constant blood supply,
regardless of external factors?
A) Skin
B) Muscles
C) Kidneys
D) Gastrointestinal tract - Correct answerC
Page: 1522
Type: General Knowledge

10. Which of the following organs can sustain the longest period of inadequate
perfusion?
A) Gastrointestinal tract
B) Kidneys
C) Spinal cord
D) Skeletal muscle - Correct answerA
Page: 1522-1523
Type: General Knowledge

11. An organ or tissue that is considerably colder than 98.6°F is better able to resist
damage from hypoperfusion because:
A) the body's metabolic rate is slower.
B) cells shrink as body temperature falls.
C) hypothermia promotes oxygen metabolism.
D) hypothermia protects hemoglobin molecules. - Correct answerA
Page: 1523
Type: General Knowledge

12. The amount of blood returned to the heart is called:
A) preload.
B) cardiac output.
C) afterload.
D) stroke volume. - Correct answerA
Page: 1520
Type: General Knowledge

13. External bleeding would be the MOST difficult to control in a patient with a large
laceration to the _____________ and a blood pressure of ______ mm Hg.
A) jugular vein, 96/62
B) brachial artery, 68/46
C) femoral vein, 114/60
D) carotid artery, 100/70 - Correct answerD
Page: 1524-1525
Type: General Knowledge

, 14. Patients with internal hemorrhage will benefit MOST from:
A) IV therapy.
B) high-flow oxygen.
C) rapid transport.
D) PASG placement. - Correct answerC
Page: 1524
Type: General Knowledge

15. What is the approximate total blood volume of a 150-pound male?
A) 4.8 L
B) 5.1 L
C) 6.2 L
D) 6.5 L - Correct answerA
Page: 1524
Type: General Knowledge

16. The MOST significant factor that determines how well the body compensates for
blood loss is:
A) the patient's pulse rate at the time of the injury.
B) the period of time over which the blood is lost.
C) whether the bleeding is internal or external.
D) whether the bleeding is venous or arterial. - Correct answerB
Page: 1524
Type: General Knowledge

17. Venous bleeding:
A) is dark red in color and usually oozes from the wound.
B) is bright red in color and typically spurts from a wound.
C) is more likely to clot spontaneously than arterial bleeding.
D) is generally more difficult to control than arterial bleeding. - Correct
answerC
Page: 1525
Type: General Knowledge

18. Which of the following factors would have the MOST negative effect on the body's
process of hemostasis?
A) Bradycardia
B) Hyperthermia
C) Chronic heroin use
D) Anticoagulant use - Correct answerD
Page: 1525
Type: General Knowledge