ALREADY GRADED A+
1. Helmets and automobile airbags work because they
prevent blows to the head.
reduce acceleration injuries.
increase deceleration speed.
add deceleration distance. - answer-reduce acceleration injuries.
2. Which of the following statements best describes knife wounds? Their velocity is _____, the
temporary cavity _____, and damage _____.
low; depends on the size of the knife; is usually extensive
low; is insignificant; is limited to structures directly in object's path
high; will be small; affects structures at some distance from the wound tract
high; may be massive; results in widespread tissue destruction - answer-low; is insignificant; is limited
to structures directly in object's path
4. Injury to which body structure is commonly a DELAYED finding in the blast trauma patient?
Heart
Bladder
Bowel
Spleen - answer-Bowel
5. Shock occurs when
the sodium-potassium pump fails.
ATP levels are less than lactic acid levels.
cellular oxygen demand is greater than supply.
aerobic metabolism exceeds anaerobic metabolism. - answer-cellular oxygen demand is greater than
supply.
6. _____ shock is the most common type of shock immediately after traumatic injury.
,Distributive Septic Cardiogenic Hypovolemic - answer-Hypovolemic
7. Which findings suggest a trauma patient is experiencing cardiogenic shock?
Bradycardia, cyanosis, and elevated mean arterial pressure
High shock index, mottling, and hypotension
Tachycardia, flushing, and widened pulse pressure
Pallor, course breath sounds, and hypertension - answer-High shock index, mottling, and hypotension
8. A multisystem trauma patient has become progressively tachycardic and hypotensive one week after
hospital admission. Pulse pressure is wide. The most likely explanation for this finding is
dehydration.
fat embolism syndrome.
surgical site bleeding.
sepsis. - answer-sepsis.
9. Normalizing a trauma patient's body temperature helps control bleeding because hypothermia
produces shivering and makes platelets hyperactive.
causes platelet dysfunction and clotting system failure.
stimulates the clotting cascade and reduces blood pressure.
increases tissue oxygen consumption and cold diuresis. - answer-causes platelet dysfunction and
clotting system failure.
10. What are the 3 components of the "trauma triad of death"?
Coagulopathy, hypothermia, and acidosis
Hypothermia, alkalosis, and coagulopathy
Alkalosis, hyperthermia, and tissue injury
Tissue injury, hyperthermia, and acidosis - answer-Coagulopathy, hypothermia, and acidosis
11. Compensatory responses to hypovolemic shock include
,vasoconstriction, tachycardia, and oliguria.
immune system activation, water retention, and bradycardia.
tachycardia, diuresis, and hypoglycemia.
fluid shifts, histamine release, and increased urine output. - answer-vasoconstriction, tachycardia, and
oliguria.
12. What four factors determine a patient's cardiac output?
Pulse pressure, afterload, shock index, and blood pressure
Heart rate, preload, contractility, and afterload
Preload, mean pressure, heart rate, and central venous pressure
Contractility, systolic pressure, shock index, and pulse pressure - answer-Heart rate, preload,
contractility, and afterload
13. Trauma resuscitation is considered complete when hemorrhage is controlled, the patient has normal
vital signs, and
body temperature has been stabilized.
hemoglobin level is greater than 8 g/dL.
aerobic metabolism is reestablished.
the Glasgow Coma Scale score exceeds 13. - answer-aerobic metabolism is reestablished.
14. A patient with posterior rib fractures is at the highest risk for concomitant fractures of the
sternum.
T-spine.
clavicles.
ribs 1 and 2. - answer-T-spine.
15. A motocross racer hit a ditch at high speed. The rider's chest was thrown against the handlebars.
Which assessment finding indicates the patient has a flail chest?
Paradoxical movement of the right chest wall
A bubbling wound located on the upper thorax
, Subcutaneous emphysema and pain on palpation
Chest dissymmetry with unilateral hyperexpansion - answer-Paradoxical movement of the right chest
wall
16. Pulmonary contusions cause a problem at what point on the tissue oxygenation cascade?
Hemoglobin availability
Cardiac output
Diffusion
Ventilation - answer-Ventilation
17. What is the usual intervention for a patient with subcutaneous emphysema?
Chest tube insertion
Emergent surgical repair
Needle decompression
Observation and reassessment - answer-Observation and reassessment
18. 15 hours after a motor vehicle collision, an unrestrained driver is experiencing frequent, irregular
heartbeats. The most likely cause of this finding is injury to the
left atrium.
left ventricle.
right atrium.
right ventricle. - answer-right atrium.
19. In the patient with chest trauma, which of these findings is the earliest indicator of cardiac
tamponade?
Elevated heart rate
Systolic hypotension
Jugular vein distention
Unilateral breath sounds - answer-Elevated heart rate