Emergency Medical Technician (EMT) Intermediate Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 830

What is a common complication associated with untreated cardiac arrest?

Respiratory failure

Myocardial infarction

Cerebral hypoxia

Cerebral hypoxia occurs when the brain does not receive enough oxygen, which is a direct consequence of untreated cardiac arrest. When the heart stops beating effectively, blood flow to all parts of the body, including the brain, is severely compromised. This lack of blood flow results in reduced oxygen delivery to the brain, which can lead to neuronal injury and, in severe cases, cell death if not promptly reversed.

During cardiac arrest, if resuscitation efforts, such as CPR and defibrillation, are not initiated quickly, victims can experience irreversible brain damage within minutes due to this oxygen deprivation. The importance of rapid intervention in cardiac arrest situations highlights why prompt medical response is critical; preventing cerebral hypoxia can significantly improve outcomes for the patient.

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Pneumonia

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