Advanced Cardiovascular Life Support (ACLS) Practice Exam 2025 - Free ACLS Practice Questions and Study Guide

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What does the acronym "H’s and T’s" refer to in the ACLS protocols?

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Reversible causes of cardiac arrest

The acronym "H’s and T’s" specifically refers to the reversible causes of cardiac arrest, which are crucial to identify and treat during a resuscitation effort. In the context of ACLS protocols, the "H's" typically include hypovolemia, hypoxia, hydrogen ion (acidosis), hypo-/hyperkalemia, and hypothermia. The "T's" encompass tension pneumothorax, cardiac tamponade, toxins, and thrombosis (either pulmonary or coronary). Recognizing and addressing these reversible causes can significantly impact the outcome of a patient in cardiac arrest, as prompt treatment can restore normal heart rhythm and function.

Understanding these factors is vital for clinicians, as it assists in developing a targeted approach to resuscitation, enhancing the chances of patient survival and recovery.

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