EMT Cardiology Sample Test 3

Question 1

Where does blood travel when it leaves the right ventricle of the heart?

Accepted Answer

To the pulmonary arteries then to the lungs

Answer

When blood leaves the right ventricle, it is deoxygenated and is pumped into the pulmonary arteries. These arteries then carry the blood directly to the lungs. In the lungs, the blood releases carbon dioxide and picks up oxygen, completing the pulmonary circulation before returning to the left side of the heart.

Question 2

Research shows that most of the cases of inappropriately delivered shocks from an AED have been caused by

Accepted Answer

Human error.

Answer

Research consistently indicates that the majority of inappropriately delivered shocks from an AED are attributed to human error. This can include misapplication of the device, failure to follow proper protocols, or using the AED on a patient who is not in cardiac arrest. Mechanical malfunctions are significantly less common causes of such incidents.

Question 3

Which statement about the assessment of a patient with cardiac compromise is correct?

Accepted Answer

You cannot determine the degree of cardiac damage in the field.

Answer

As an EMT or paramedic in the field, you can assess signs and symptoms suggestive of cardiac compromise and initiate appropriate prehospital care. However, definitive diagnosis of the specific type or extent of cardiac damage, such as the size of an infarct or the specific coronary artery involved, requires advanced diagnostic tools like EKGs, cardiac enzymes, and imaging available only in a hospital setting.

Question 4

The left atrium

Accepted Answer

Receives blood from the pulmonary veins.

Answer

The left atrium is one of the heart's upper chambers and plays a crucial role in the circulatory system. It receives oxygenated blood that has just returned from the lungs via the pulmonary veins. From the left atrium, this blood then flows into the left ventricle to be pumped out to the rest of the body.

Question 5

You should apply the AED pads to your patient when he

Accepted Answer

Is pulseless and apneic.

Answer

An AED is specifically designed for patients in cardiac arrest, meaning they are pulseless (no palpable pulse) and apneic (not breathing or only gasping). Applying an AED to a patient with a pulse or who is breathing spontaneously is inappropriate and could deliver an unnecessary and harmful shock. The AED's purpose is to correct life-threatening arrhythmias in a cardiac arrest situation.

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EMT Cardiology Sample Test 3