Which of the following is an H or T reversible cause of cardiac arrest?

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Multiple Choice

Which of the following is an H or T reversible cause of cardiac arrest?

Explanation:
When managing cardiac arrest, clinicians actively look for reversible causes labeled as Hs and Ts. Hypovolemia fits this category because it means there isn’t enough circulating blood volume to maintain adequate preload and perfusion. Restoring volume with a rapid IV (or IO) fluid bolus can improve venous return, boost cardiac output, and increase the chance of return of spontaneous circulation if the arrest is due to low volume. The other options don’t belong in the Hs and Ts list: hypertension isn’t one of the reversible H/T causes in this framework, seizures aren’t listed as an H or T cause (though they can lead to arrest via hypoxia), and hyperglycemia isn’t part of the H/T reversibles. So hypovolemia is the correct reversible cause to address quickly in this context.

When managing cardiac arrest, clinicians actively look for reversible causes labeled as Hs and Ts. Hypovolemia fits this category because it means there isn’t enough circulating blood volume to maintain adequate preload and perfusion. Restoring volume with a rapid IV (or IO) fluid bolus can improve venous return, boost cardiac output, and increase the chance of return of spontaneous circulation if the arrest is due to low volume. The other options don’t belong in the Hs and Ts list: hypertension isn’t one of the reversible H/T causes in this framework, seizures aren’t listed as an H or T cause (though they can lead to arrest via hypoxia), and hyperglycemia isn’t part of the H/T reversibles. So hypovolemia is the correct reversible cause to address quickly in this context.

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