The health care provider orders a trough level of an antibiotic administered every twenty four hours.
When should the nurse plan for a trough level to be drawn?
Every morning at 08:00AM (0800).
Halfway between next scheduled dose.
Just prior to next scheduled dose.
Two hours after a scheduled dose.
The Correct Answer is C
Just prior to the next scheduled dose. A trough level is the lowest concentration of a drug in the blood, and it is measured just before the next dose is due to be administered.
This helps to ensure that the drug level does not fall below the therapeutic range or rise above the toxic range.
Choice A is wrong because every morning at 08:00 AM (0800) is not a consistent time interval for a drug that is administered every twenty-four hours.
The trough level should be measured at the same time before each dose.
Choice B is wrong because halfway between next scheduled dose is not a trough level, but a midpoint level.
This does not reflect the lowest concentration of the drug in the blood.
Choice D is wrong because two hours after a scheduled dose is not a trough level, but a peak level. This is the highest concentration of the drug in the blood, and it is measured after the drug has been absorbed and distributed. Peak levels are no longer routinely recommended for vancomycin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Ask the client to describe the discomfort. This is the best action to establish a nursing diagnosis of pain related to an abdominal incision because it allows the nurse to assess the location, intensity, quality, and duration of the pain, as well as any factors that aggravate or relieve it.
This information can help the nurse to plan appropriate interventions and evaluate their effectiveness.
Choice A. Continue to observe the client is wrong because it does not address the client’s pain or communicate empathy. The nurse should not ignore or minimize the client’s pain, but rather acknowledge it and offer assistance.
Choice C. Encourage the client to progressively relax all muscle groups is wrong because it is a nonpharmacological intervention that may help to reduce pain, but it does not establish a nursing diagnosis of pain. The nurse should first assess the client’s pain before implementing any interventions.
Choice D. Administer the prescribed analgesic and document the client’s response is wrong because it is a pharmacological intervention that may help to relieve pain, but it does not establish a nursing diagnosis of pain. The nurse should first assess the client’s pain before administering any medications.
Correct Answer is B
Explanation
A client who has been NPO for four days is most at risk to develop skin breakdown. This is because being NPO (nothing by mouth) can lead
to malnutrition and dehydration, which are both risk factors for bedsores. Malnutrition can impair the skin’s ability to heal and resist infection, while dehydration can make the skin dry and fragile.
Choice A is wrong because applying powder after drying the skin can help prevent moisture and friction, which are also risk factors for bedsores.
Choice C is wrong because bathing twice a week may not be frequent enough to keep the skin clean and free of irritants, which can also contribute to bedsores.
Choice D is wrong because hypertension (high blood pressure) does not directly cause bedsores, although it may be associated with other conditions that affect blood circulation and tissue oxygenation.
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