American Association of Critical-Care Nurses (AACN) Certification Practice Test

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What symptom is associated with tachycardia in the "TIRED" acronym for hypoglycemia?

Excessive hunger
Diaphoresis
Irritable
Restlessness

The correct answer is: Irritable

In the context of hypoglycemia, the "TIRED" acronym serves as a helpful mnemonic for identifying the symptoms associated with low blood sugar levels. One of the elements of this acronym is "I," which stands for irritability. This is a common response when blood glucose levels drop, as the body reacts to the insufficient energy supply. The brain, which relies heavily on glucose for functioning, can lead to mood changes and disturbances in behavior, including increased irritability. This symptom is particularly significant because it signals not only the physiological effects of hypoglycemia but also the psychological impacts, emphasizing the importance of recognizing changes in behavior. By understanding irritability as a symptom of tachycardia in hypoglycemia, individuals can better manage and respond to low blood sugar situations. The other symptoms such as excessive hunger, diaphoresis, and restlessness, while also relevant in hypoglycemia scenarios, are offered as different components of the broader symptom picture, rather than directly correlating with the "I" in the acronym TIRED.