Patient Care Technician (PCT) AAH Practice Exam

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What potential risks are associated with hypokalemia?

None
Heart rhythm disturbances
Excessive thirst
Increased appetite

The correct answer is: Heart rhythm disturbances

Hypokalemia, or low levels of potassium in the blood, can lead to significant health complications, primarily affecting the heart and muscle function. One of the most serious risks associated with hypokalemia is the potential for heart rhythm disturbances. Potassium is essential for proper electrical signaling in the heart; when potassium levels are low, it can alter the normal conduction pathways, leading to arrhythmias. These disturbances can range from benign palpitations to life-threatening conditions such as ventricular fibrillation. Other potential risks associated with hypokalemia may affect muscle function, leading to weakness and cramps, but the most critical aspect is its impact on cardiovascular health, making heart rhythm disturbances the primary concern. While some may experience changes in thirst or appetite levels in various scenarios, these symptoms are not directly caused by hypokalemia itself and do not represent the most significant risk associated with the condition.