While changing the dressing of a client who is immobile, the practical nurse (PN) observes a red and swollen wound with a moderate amount of yellow and green drainage and a foul odor.

Before reporting this finding to the healthcare provider, the PN should evaluate which of the client's laboratory values?

The correct answer is choice B, Serum creatinine. Choice A rationale:

The white blood cell count (WBC) is an important parameter for assessing the body's immune response to infections. While it can provide valuable information about the presence of an infection, it is not directly related to nephrotoxicity. Therefore, it is not the most important laboratory value to review before administering an antibiotic that can cause nephrotoxicity.

Choice B rationale:

Serum creatinine is a crucial laboratory value to assess kidney function. It is a waste product that is filtered by the kidneys, and its level in the blood is a reliable indicator of kidney function. If the serum creatinine level is elevated, it suggests impaired kidney function, which can be a warning sign of nephrotoxicity. Reviewing the serum creatinine level before administering nephrotoxic antibiotics is essential to ensure that the client's kidneys are functioning adequately and to avoid potential harm.

Choice C rationale:

Hemoglobin and hematocrit are indicators of the client's red blood cell count and blood's oxygen-carrying capacity. While these values can provide information about the client's overall health status, they are not directly related to nephrotoxicity. Therefore, they are not the most important laboratory values to review in this particular scenario.

Choice D rationale:

Serum calcium levels are essential for assessing bone health, nerve function, and muscle contractions. However, they are not directly related to nephrotoxicity, and reviewing serum calcium levels alone would not provide sufficient information about kidney function. Hence, it is not the most critical value to review before administering nephrotoxic antibiotics

Observe how UAP obtains temperatures.

Choice A rationale:

The PN should first observe how the unlicensed assistive personnel (UAP) obtains temperatures using a tympanic thermometer. This step is essential to determine if there is an error in the technique or if the thermometer is malfunctioning. Correct technique and proper use of equipment are crucial to obtaining accurate and reliable temperature readings.

Choice B rationale:

While returning the thermometer for recalibration might be necessary if the thermometer is indeed faulty, it should not be the first action the PN takes. Observing the UAP's technique will help identify if the issue lies with the equipment or the individual's method.

Choice C rationale:

Demonstrating how to use the equipment might be helpful if the UAP is incorrectly using the thermometer. However, observing the UAP's technique first will help the PN identify if there is a need for retraining or recalibration.

Choice D rationale:

Showing the UAP how to chart temperatures is not the first priority when inconsistent readings are noted. Ensuring the accuracy of temperature measurements is essential for proper patient care and assessment.