HESI Basic Care and Comfort Practice Exam

Polydipsia, or excessive thirst, is a classic symptom of hyperglycemia, which occurs when there is too much glucose in the bloodstream. In clients receiving total parenteral nutrition (TPN), monitoring for signs of hyperglycemia is crucial, particularly because TPN can supply a high amount of glucose. Elevated blood glucose levels can lead to osmotic diuresis, causing increased urine production and subsequent fluid loss, which may stimulate thirst as the body attempts to compensate for dehydration.

In the context of total parenteral nutrition, the patient may not be receiving adequate hydration through other means, making polydipsia an important sign to observe. Recognizing polydipsia early can help healthcare providers manage hyperglycemia effectively, potentially adjusting the TPN formulation and ensuring that glucose levels remain within a safe range.

While increased respiratory rate, dehydration, and hypotension can also be related to hyperglycemia or its complications, they are not direct symptoms of elevated blood glucose levels in the same way that polydipsia is. Polydipsia reflects a body response to high glucose levels, indicating the need for careful monitoring and management in patients on TPN.