In which situation would you take caution while administering hydrochlorothiazide?

Taking caution while administering hydrochlorothiazide is particularly important with changing body positions due to the risk of orthostatic hypotension. Hydrochlorothiazide is a diuretic that can cause a decrease in blood volume and pressure, leading to dizziness or lightheadedness, especially when patients move from a sitting or lying position to standing. This effect can be more pronounced in certain populations, such as older adults or those who are dehydrated.

Being cautious during position changes can help prevent falls and ensure that patients remain safe while receiving treatment. In contrast, while the other situations might warrant attention, they do not directly relate to immediate risks associated with positional changes, making this the most critical scenario to monitor closely.