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 C
Explanation
This is the priority action because it follows the RACE acronym for fire safety: Rescue, Alarm, Contain, Extinguish. The nurse should first rescue the client from immediate danger by smothering the flames with a blanket.
This will also help contain the fire and prevent it from spreading.
Choice A is wrong because closing the window and removing the client’s oxygen will not put out the fire.
Oxygen is not flammable, but it can make a fire burn faster and hotter. Removing the oxygen source may help reduce the intensity of the fire, but it will not extinguish it.
Choice B is wrong because sounding the fire alarm and activating the emergency response system are important steps, but they are not the priority. The nurse should first ensure the client’s safety before alerting others and calling for help.
Choice D is wrong because removing the client from the room and closing the door may expose the client to more harm and make the fire worse.
The nurse should not move the client unless it is absolutely necessary, as this may cause further injury or infection. Closing the door may create a backdraft, which is a sudden explosion of fire caused by oxygen rushing into an enclosed space.
Correct Answer is D
Explanation
This is because diminished breath sounds indicate poor oxygenation and ventilation, which can lead to respiratory failure and hypoxia. The healthcare provider should be notified immediately to assess the client and provide appropriate interventions.
Choice A is wrong because joint pain is a common side effect of some arthritis medications, such as nonsteroidal anti-inflammatory drugs (NSAIDs). It does not require immediate attention unless it is severe or accompanied by other symptoms, such as swelling, redness, or fever.
Choice B is wrong because decreased appetite and difficulty sleeping are normal responses to grief and loss. They do not indicate a medical emergency, but rather a need for emotional support and counseling.
Choice C is wrong because a weight loss of two pounds in a client admitted with congestive heart failure is a positive sign that indicates fluid removal and improved cardiac function. It does not require immediate reporting, but rather ongoing monitoring and evaluation.
Normal ranges for vital signs are as follows :
- Blood pressure: 90/60 mm Hg to 120/80 mm Hg
- Breathing: 12 to 18 breaths per minute
- Pulse: 60 to 100 beats per minute
- Temperature: 97.8°F to 99.1°F (36.5°C to 37.3°C); average 98.6°F (37°C)
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