CCRN Multisystem Trauma and Shock 3

Question 1

What is the recommended ratio of packed red blood cells, plasma, and platelets in a massive transfusion protocol?

Accepted Answer

1:1:1

Answer

4:1:1

Answer

2:1:1

Answer

3:2:1

Question 2

Which component of the 'lethal triad' of trauma worsens as a result of large-volume crystalloid resuscitation?

Accepted Answer

Hypothermia and coagulopathy

Answer

Hypercoagulability

Answer

Hyperthermia

Answer

Alkalosis

Question 3

A trauma patient receiving massive transfusion develops perioral tingling and a prolonged QT interval. What electrolyte abnormality is most likely?

Accepted Answer

Hypocalcemia

Answer

Hyperkalemia

Answer

Hypernatremia

Answer

Hypomagnesemia

Question 4

Which assessment finding most strongly suggests an obstructive cause of shock rather than hypovolemia?

Accepted Answer

Distended neck veins

Answer

Flat neck veins

Answer

Warm extremities

Answer

Bounding pulses

Question 5

What is the primary goal of damage control surgery in the unstable polytrauma patient?

Accepted Answer

Control hemorrhage and contamination

Answer

Complete definitive repair

Answer

Cosmetic restoration

Answer

Immediate fracture fixation

Question 6

Tranexamic acid (TXA) is most beneficial when administered to a trauma patient within what timeframe?

Accepted Answer

Within 3 hours of injury

Answer

Within 12 hours of injury

Answer

Within 24 hours of injury

Answer

Only after 6 hours

Question 7

Which sign indicates that fluid resuscitation has restored adequate end-organ perfusion?

Accepted Answer

Urine output of 0.5 mL/kg/hr or more

Answer

Rising lactate

Answer

Worsening base deficit

Answer

Increasing capillary refill time