PHTLS Shock and Hemorrhage Control 2

Question 1

A trauma patient has a BP of 80/60 mmHg, HR of 128 bpm, and cool, clammy skin. Which class of hemorrhagic shock does this best represent?

Accepted Answer

Class III

Answer

Class III hemorrhagic shock involves 30–40% blood volume loss and presents with hypotension, tachycardia >120, and altered mental status.

Question 2

Which of the following is the MOST appropriate initial intervention for a suspected pelvic fracture causing hemodynamic instability in the prehospital setting?

Accepted Answer

Apply a pelvic binder or sheet wrap

Answer

A pelvic binder or sheet wrap reduces pelvic volume and tamponades internal hemorrhage in unstable pelvic fractures.

Question 3

When using a windlass tourniquet on a lower extremity, how far proximal to the wound should it be placed?

Accepted Answer

2–3 inches proximal to the wound

Answer

PHTLS guidelines recommend placing a tourniquet 2–3 inches proximal to the wound to ensure adequate compression of the vessel.

Question 4

A patient in hemorrhagic shock has received 1L of blood products en route. On reassessment, BP is 88/60 and HR is 110. This response is best described as:

Accepted Answer

Transient responder

Answer

A transient responder improves initially but then deteriorates, suggesting ongoing hemorrhage that may require surgical control.

Question 5

Which acid-base disturbance is most commonly seen in severe hemorrhagic shock?

Accepted Answer

Metabolic acidosis

Answer

Anaerobic metabolism from inadequate tissue perfusion produces lactic acid, causing metabolic acidosis in hemorrhagic shock.

PHTLS - Prehospital Trauma Life Support Practice Test

PHTLS - Prehospital Trauma Life Support Practice Test

PHTLS Shock and Hemorrhage Control 2