PHTLS - Prehospital Trauma Life Support Shock and Hemorrhage Control 2

Question 1

What is the definition of shock according to PHTLS?

Accepted Answer

Inadequate tissue perfusion and oxygenation

Answer

PHTLS defines shock as inadequate tissue perfusion, when oxygen delivery fails to meet metabolic demands.

Question 2

Which class of hemorrhagic shock typically presents with the first measurable drop in systolic blood pressure?

Accepted Answer

Class III

Answer

Class III hemorrhage (30-40% blood volume loss) is typically when systolic blood pressure measurably drops, as compensatory mechanisms become overwhelmed.

Question 3

What is the PHTLS-recommended first-line treatment for life-threatening extremity hemorrhage?

Accepted Answer

Tourniquet application

Answer

PHTLS now recommends early tourniquet application as the first-line treatment for life-threatening extremity hemorrhage.

Question 4

How does PHTLS recommend managing junctional hemorrhage (neck, axilla, groin)?

Accepted Answer

Wound packing with hemostatic gauze and sustained direct pressure

Answer

Junctional hemorrhage is managed with wound packing using hemostatic agents and sustained direct pressure.

Question 5

What is the concept of permissive hypotension in trauma resuscitation?

Accepted Answer

Targeting a lower-than-normal blood pressure to prevent disruption of clots while maintaining organ perfusion

Answer

Permissive hypotension involves accepting a systolic blood pressure of 80-90 mmHg to maintain basic perfusion while avoiding elevated pressures that might dislodge clots.

PHTLS - Prehospital Trauma Life Support Practice Test

PHTLS - Prehospital Trauma Life Support Practice Test

PHTLS - Prehospital Trauma Life Support Shock and Hemorrhage Control 2