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 D
Explanation
The correct answer is choice D, Pupils reactive to accommodation. Choice A rationale:
"Peripheral vision intact”. refers to the ability to see objects at the outer edges of one's visual field. It is not relevant to the assessment of pupillary response and does not describe the finding of pupils constricting as they change focus from a far object to a near object.
Choice B rationale:
"Nystagmus present with pupillary focus”. suggests involuntary rapid eye movements accompanied by changes in pupillary response. Nystagmus is not an expected finding during pupillary accommodation, and its presence would indicate a neurological issue rather than a normal response.
Choice C rationale:
"Consensual pupillary constriction present”. refers to both pupils constricting when light is shined into one eye. While this finding is normal, it does not specifically describe the pupils' response during accommodation when focusing from a far object to a near object.
Choice D rationale:
"Pupils reactive to accommodation”. accurately describes the normal physiological response of the pupils constricting as they change focus from a distant object to a nearby object. This response ensures that the appropriate amount of light enters the eyes to maintain clear vision during different distances of focus.
Correct Answer is B
Explanation
The correct answer is B. Extend the leg and flex the foot.
Choice A rationale:
Massaging the calf and foot is not recommended as it could potentially dislodge a blood clot if one is present, which can be dangerous.
Choice B rationale:
Extending the leg and flexing the foot helps to relieve the cramp by stretching the muscles involved. This is a safe and effective method to alleviate muscle cramps.
Choice C rationale:
Checking the pedal pulse in the affected leg is important for assessing circulation but does not directly address the immediate discomfort of the cramp.
Choice D rationale:
Elevating the leg above the heart is generally used to reduce swelling and improve circulation but is not specifically effective for relieving muscle cramps.
: 3
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