The practical nurse (PN) notices that one of the unlicensed assistive personnel (UAP) working in the long term care facility consistently records subnormal temperatures when using a tympanic thermometer. Which action should the PN take first?

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

The correct answer is choice B. Ineffective airway clearance.

Choice A rationale:

Risk of infection is not the priority nursing problem in this scenario. While the darkened membranes and smoky breath may be indicative of potential infection, addressing ineffective airway clearance is more urgent as it directly impacts the client's breathing and oxygenation.

Choice B rationale:

Ineffective airway clearance should be the priority nursing problem. Darkened membranes of the mouth and smoky breath suggest possible inhalation injury or airway obstruction.

Maintaining a patent airway is crucial for adequate oxygenation and to prevent further complications.

Choice C rationale:

Acute pain is not the priority nursing problem in this case. Although it is essential to address any discomfort the client may be experiencing, it takes a back seat to the more critical issue of ineffective airway clearance.

Choice D rationale:

Disturbed body image is not the priority nursing problem when the client has darkened mouth membranes and smoky breath. While it is important to address body image concerns, the immediate focus should be on managing and improving the client's airway clearance.