For reversible causes of cardiac arrest, what does the acronym H's and T's stand for?

The acronym H's and T's represents a critical framework for identifying reversible causes of cardiac arrest, which is essential in emergency situations to improve patient outcomes. The correct answer encompasses important reversible conditions that can lead to or exacerbate cardiac arrest.

Starting with the H's:

• Hypovolemia signifies a decreased volume of blood in the circulation, which can lead to inadequate perfusion and subsequent cardiac arrest.

• Hypoxia indicates a lack of oxygen, which is essential for cellular metabolism and can precipitate cardiac arrest if not resolved quickly.

• Hydrogen ions refer to acidosis, which can affect the heart's electrical activity and function.

• Hyper/hypokalemia relates to abnormal potassium levels; both high and low potassium levels can disrupt cardiac rhythm and function.

• Hypothermia indicates a dangerously low body temperature that can cause cardiac dysfunction and arrest.

For the T's:

• Tamponade refers to cardiac tamponade, where fluid accumulation in the pericardium exerts pressure on the heart, hindering its ability to pump effectively.

• Toxins represent various drugs, overdose situations, or metabolic disturbances that can lead to cardiac arrest.

• Thrombosis includes both coronary (leading to myocardial infarction) and pulmonary thrombus (leading to