NREMT Paramedic Cognitive ExamCardiology & ResuscitationMedium
A 40-year-old female is experiencing chest pain, diaphoresis, and shortness of breath. Her blood pressure is 70/40 mmHg, heart rate 130 bpm, and respiratory rate 28 bpm. Her skin is cool and clammy. Which of the following types of shock is she most likely experiencing?
- ACardiogenic shock
- BHypovolemic shock
- CDistributive shock
- DObstructive shock
Show answer & explanationAnswer & explanation
Correct answer: A. Cardiogenic shock
The patient's presentation with chest pain, signs of poor perfusion (hypotension, cool/clammy skin, tachycardia, tachypnea), and likely cardiac etiology (chest pain) strongly suggests cardiogenic shock. This occurs when the heart's pumping ability is severely impaired, leading to inadequate cardiac output.
Why the other options are wrong
- B. Hypovolemic shock is due to fluid loss, often with a clear history of hemorrhage or dehydration, though symptoms overlap.
- C. Distributive shock (e.g., septic, anaphylactic, neurogenic) typically presents with vasodilation, often leading to warm, flushed skin initially (except for neurogenic which can be bradycardic).
- D. Obstructive shock is caused by physical obstruction to blood flow (e.g., tension pneumothorax, pulmonary embolism, cardiac tamponade), which may have distinct clinical findings.
Cardiogenic Shock
Cardiogenic shock is a state in which the heart has been damaged to the point that it is unable to supply enough blood to the organs of the body. It is a form of pump failure.
- Caused by severe myocardial dysfunction (e.g., large MI, severe heart failure).
- Characterized by hypotension, tachycardia, signs of poor perfusion (cool/clammy skin, altered mental status).
- Often associated with chest pain or other cardiac symptoms.
- Requires aggressive management to support cardiac function and perfusion.
Memory trick: Hypo, Cardio, Distribute, Obstruct, Oh My!