Get ready for the Paramedic Readiness Exam 5. Study with multiple-choice questions, detailed explanations, and effective strategies. Enhance your exam preparedness today!

Multiple Choice

A 44 year old female has sustained severe blunt trauma to the chest. She responds to painful stimuli and her vital signs are BP 88/76, P 130, R 24. Further assessment reveals muffled heart tones and distended neck veins. What is the definitive treatment for this patient?

Traumatic cardiac tamponade happens when blood fills the pericardial sac and compresses the heart, so it can’t fill properly during diastole. This reduces preload and cardiac output, causing shock. The signs you’re seeing—low blood pressure, rapid pulse, muffled heart sounds, and distended neck veins—fit this scenario because the heart is being squeezed and venous return is blocked. To reverse the problem, you need to relieve that pressure by draining the pericardial space. Emergency pericardiocentesis (or urgent surgical drainage) directly removes the blood from around the heart, allowing it to fill and pump effectively again. Giving IV fluids might improve blood pressure temporarily by increasing preload, but it doesn’t fix the compression and can worsen bleeding in trauma. A chest tube would be for a pneumothorax, not tamponade, and defibrillation won’t address the mechanical constraint on filling. So the key action is rapid drainage of the pericardial sac to stop the tamponade and restore cardiac filling.

Traumatic cardiac tamponade happens when blood fills the pericardial sac and compresses the heart, so it can’t fill properly during diastole. This reduces preload and cardiac output, causing shock. The signs you’re seeing—low blood pressure, rapid pulse, muffled heart sounds, and distended neck veins—fit this scenario because the heart is being squeezed and venous return is blocked.

To reverse the problem, you need to relieve that pressure by draining the pericardial space. Emergency pericardiocentesis (or urgent surgical drainage) directly removes the blood from around the heart, allowing it to fill and pump effectively again. Giving IV fluids might improve blood pressure temporarily by increasing preload, but it doesn’t fix the compression and can worsen bleeding in trauma. A chest tube would be for a pneumothorax, not tamponade, and defibrillation won’t address the mechanical constraint on filling.

So the key action is rapid drainage of the pericardial sac to stop the tamponade and restore cardiac filling.