Assessment of Cardiac tamponade: Video, Anatomy & Definition | Osmosis

Question

A 35-year-old woman is brought to the emergency department following a motor vehicle accident. At the scene, she was in severe pain and pointed to her chest. Soon after arrival, the patient loses consciousness. Temperature is 37.0&#176;C (98.6&#176;F), pulse is 120/min, respirations are 22/min, and blood pressure is 75/55 mmHg. On physical examination, there are multiple lacerations over the torso and face. Significant bruising is noted over the chest. Neck veins are distended. On chest auscultation, lung fields are clear bilaterally and heart sounds are weak. Echocardiography is obtained and shows a large pericardial effusion. Which of the following sets of hemodynamic parameters are most likely to be seen in this patient? &#160;

Accepted Answer

Cardiac output (CO) Preload Systemic vascular resistance (SVR)
↓ ↑ ↑

Answer

Cardiac output (CO) Preload Systemic vascular resistance (SVR)
↓ ↓ ↑

Answer

Cardiac output (CO) Preload Systemic vascular resistance (SVR)
↑
↓ ↓

Answer

Cardiac output (CO) Preload Systemic vascular resistance (SVR)
↓ ↓ ↓

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Cardiac tamponade

Pathology

Cardiovascular system