Which of the following is a T that may cause cardiac arrest?

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Multiple Choice

Which of the following is a T that may cause cardiac arrest?

Explanation:
In ACLS, reversible causes of cardiac arrest are grouped into the 6 Hs and 6 Ts. This item asks for a cause that is categorized as a T. Tamponade (cardiac) fits here because it’s an obstructive-type trigger: fluid in the pericardial sac compresses the heart, preventing proper filling, which drops preload and cardiac output and can lead to arrest. The key is that this cause is treatable by relieving the pressure—pericardiocentesis or drainage—to restore filling and circulation. The other options are not Ts; they’re Hs. Hypoxia, hypovolemia, and hydrogen ion (acidosis) cause arrest through different pathways (insufficient oxygen delivery, low circulating volume, and acid-base disturbance, respectively) and are addressed by their own targeted treatments rather than as Ts.

In ACLS, reversible causes of cardiac arrest are grouped into the 6 Hs and 6 Ts. This item asks for a cause that is categorized as a T. Tamponade (cardiac) fits here because it’s an obstructive-type trigger: fluid in the pericardial sac compresses the heart, preventing proper filling, which drops preload and cardiac output and can lead to arrest. The key is that this cause is treatable by relieving the pressure—pericardiocentesis or drainage—to restore filling and circulation.

The other options are not Ts; they’re Hs. Hypoxia, hypovolemia, and hydrogen ion (acidosis) cause arrest through different pathways (insufficient oxygen delivery, low circulating volume, and acid-base disturbance, respectively) and are addressed by their own targeted treatments rather than as Ts.

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