Before administering an antibiotic that can cause nephrotoxicity, which laboratory value is most important for the practical nurse (PN) to review?
White blood cell count (WBC).
Serum creatinine.
Hemoglobin and Hematocrit.
Serum calcium
The Correct Answer is B
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is Choice A:
Assist in turning the client to one side. Choice A rationale:
When preparing a client with obstructive sleep apnea for sleep, the practical nurse (PN) should assist the client in turning to one side. This position is known as the lateral position and can be beneficial for clients with obstructive sleep apnea. Lying on one's side can help to reduce the likelihood of airway obstruction and minimize the occurrence of apnea (pauses in breathing) during sleep. This position promotes better airflow and can improve the client's overall sleep quality.
Choice B rationale:
Keeping oral suction equipment nearby (Choice B) might be appropriate for clients with respiratory issues or a risk of airway obstruction. However, it is not the best action for a client with obstructive sleep apnea. Sleep apnea primarily involves upper airway collapse, not excessive secretions or obstructions in the oral cavity.
Choice C rationale:
Offering to bring the client a sleeping pill (Choice C) is not an appropriate action for a client with obstructive sleep apnea. Sleep apnea is characterized by repeated episodes of blocked or restricted airflow during sleep. Sedative medications can further relax the muscles in the airway, worsening the condition and potentially leading to more severe apnea.
Choice D rationale:
Placing a cool air humidifier in the room (Choice D) may be helpful for clients who experience dryness or congestion in the airways during sleep. However, it is not specifically indicated for obstructive sleep apnea. While humidifiers can be beneficial for some sleep-related issues, they do not address the underlying cause of sleep apnea.
Correct Answer is C
Explanation
The correct answer is Choice C. Soft blanket.
Choice A rationale:
A heating pad should not be applied to the client's legs with a mottled appearance. A mottled appearance indicates poor circulation, and applying heat could potentially worsen the situation by dilating blood vessels and further reducing blood flow to the extremities.
Choice B rationale:
The body lotion is not appropriate in this situation. While it may help moisturize the skin, it will not address the underlying circulation issues causing the mottled appearance. Moreover, applying lotions to areas with compromised circulation can be harmful.
Choice C rationale:
The correct choice. A soft blanket can be applied to the client's legs with a mottled appearance to provide warmth and comfort. It is essential to keep the client comfortable during palliative care, and a soft blanket can help maintain a suitable temperature without causing harm.
Choice D rationale:
Moist clothes are not indicated in this situation. They may potentially worsen the mottled appearance by adding moisture to the skin, and it won't address the circulation issues causing the discoloration.
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