ITLS - International Trauma Life Support Hemorrhage Control and Shock Questions and Answers 1 — Questions and Answers
Question 1: A 28-year-old male has a deep, actively bleeding laceration to his right upper arm after an industrial accident. Direct pressure has failed to control the severe arterial bleeding. What is the most appropriate next step according to ITLS guidelines?
- Apply a hemostatic agent and continue direct pressure.
- Immediately apply a tourniquet proximal to the wound. (Correct answer)
- Initiate rapid transport and apply pressure during transit.
- Establish IV access and begin rapid fluid resuscitation.
Correct answer: Immediately apply a tourniquet proximal to the wound.
For life-threatening extremity hemorrhage that is not controlled by direct pressure, the immediate application of a tourniquet is the next critical intervention to stop the blood loss. ITLS emphasizes a 'C-ABC' approach, prioritizing catastrophic hemorrhage control before airway and breathing.
Question 2: Which of the following is the primary goal of permissive hypotension in the prehospital management of a patient with suspected non-compressible torso hemorrhage?
- To rapidly normalize blood pressure to 120/80 mmHg.
- To prevent clot disruption and re-bleeding before surgical control. (Correct answer)
- To increase renal perfusion and prevent acute kidney injury.
- To improve cerebral perfusion in patients with associated head trauma.
Correct answer: To prevent clot disruption and re-bleeding before surgical control.
Permissive hypotension is a strategy of restricting fluid resuscitation to maintain a lower-than-normal blood pressure (e.g., SBP of 80-90 mmHg) in patients with suspected non-compressible hemorrhage. The goal is to avoid dislodging newly formed clots by excessive intravascular pressure, which could worsen bleeding before the patient reaches definitive surgical care.
Question 3: According to ITLS guidelines, what is the recommended time frame for administering Tranexamic Acid (TXA) to a trauma patient with significant hemorrhage for maximum effectiveness?
- Within 8 hours of the injury.
- Only after arrival at the trauma center.
- As soon as possible, but no later than 3 hours after injury. (Correct answer)
- Preferably between 3 and 6 hours post-injury.
Correct answer: As soon as possible, but no later than 3 hours after injury.
ITLS guidelines, supported by major trauma studies like CRASH-2, recommend administering TXA as early as possible to patients with significant hemorrhage. The evidence shows that its effectiveness in reducing mortality diminishes over time and it may be harmful if given more than 3 hours after the injury occurs.
Question 4: You are treating a patient with signs of compensated hemorrhagic shock. Which of the following findings would you most likely expect to see first?
- A significant drop in systolic blood pressure.
- Tachycardia and cool, clammy skin. (Correct answer)
- Unconsciousness and absent peripheral pulses.
- Bradycardia and flushed, warm skin.
Correct answer: Tachycardia and cool, clammy skin.
In the early (compensated) stage of hemorrhagic shock, the body attempts to maintain blood pressure and vital organ perfusion. The initial response involves the sympathetic nervous system, leading to an increased heart rate (tachycardia) and peripheral vasoconstriction, which causes the skin to become cool and clammy. A drop in blood pressure is a sign of decompensated shock.
Question 5: A patient has a severe bleeding wound in the left axilla (armpit) region that cannot be controlled with direct pressure. Which hemorrhage control technique is most appropriate for this junctional injury?
- Application of a standard tourniquet high on the arm.
- Wound packing with a hemostatic agent. (Correct answer)
- Placing the patient in the Trendelenburg position.
- Applying a pelvic binder.
Correct answer: Wound packing with a hemostatic agent.
Junctional hemorrhage occurs where limbs or the head join the torso (e.g., axilla, groin, neck). Standard tourniquets are ineffective in these areas. The appropriate ITLS-recommended technique is to pack the wound tightly with a hemostatic dressing, followed by direct pressure.
Question 6: When managing a trauma patient with both a severe traumatic brain injury (TBI) and hemorrhagic shock, the ITLS fluid resuscitation strategy differs from that of isolated hemorrhagic shock. What is the target systolic blood pressure for this specific patient population?
- 70-80 mmHg
- 80-90 mmHg
- At least 110 mmHg (Correct answer)
- Greater than 140 mmHg
Correct answer: At least 110 mmHg
In a patient with both hemorrhagic shock and a severe TBI, it is critical to maintain adequate cerebral perfusion pressure (CPP). Hypotension can be devastating to the injured brain. Therefore, the standard permissive hypotension target is abandoned, and fluid is administered to maintain a higher systolic blood pressure, typically at or above 110 mmHg, to ensure the brain remains adequately perfused.
ITLS - International Trauma Life Support Hemorrhage Control and Shock Questions and Answers 1
A 28-year-old male has a deep, actively bleeding laceration to his right upper arm after an industrial accident.
Direct pressure has failed to control the severe arterial bleeding.
What is the most appropriate next step according to ITLS guidelines?