It is most important for the registered nurse (RN) who is working on a medical unit to provide direct supervision in which situation?
A practical nurse is preparing to assist the healthcare provider with a lumbar puncture at the bedside.
A postpartum nurse pulled to the unit needs to start a transfusion of packed red blood cells.
An unlicensed assistive personnel is preparing to weigh an obese bedfast client using a bed scale.
A graduate nurse needs to access a client's implanted port to start an infusion of Ringer's Lactate.
The Correct Answer is A
Choice A: A practical nurse assisting the healthcare provider with a lumbar puncture at the bedside is a high-risk procedure that requires direct supervision by an RN or a qualified healthcare provider. The RN should ensure the procedure is performed safely and effectively, as it involves potential risks and complications.
Choice B: Starting a transfusion of packed red blood cells is an important nursing intervention, but it does not necessarily require direct supervision by an RN, especially if the nurse has been trained and is competent in administering blood transfusions.
Choice C: Weighing an obese bedfast client using a bed scale is a routine nursing task that can be performed by unlicensed assistive personnel (UAP) with appropriate training. While the RN should ensure that the UAP is properly trained, direct supervision may not be required for this specific task.
Choice D: Accessing a client's implanted port to start an infusion of Ringer's Lactate is a nursing task that can be performed by a graduate nurse, especially if they have received appropriate training and competency validation. Direct supervision by an RN may not be necessary in this situation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A: Increased Ca+ influx with sympathetic stimulation that raises the heart rate is a manifestation of sympathetic innervation. Sympathetic activation leads to the release of norepinephrine, which enhances the influx of calcium ions (Ca+) into cardiac muscle cells, resulting in increased contractility and heart rate.
Choice B: Sympathetic activation does increase the inotropic effect (contractility) of the heart, but it is primarily mediated by the increased influx of calcium ions (Ca+).
Choice C: Sympathetic activation does not decrease dromotrophy (conduction speed). Instead, it can increase the conduction speed through the cardiac conduction system.
Choice D: Increased Na+ influx with sympathetic stimulation does not reduce pacemaker firing; instead, it contributes to the enhanced excitability and automaticity of cardiac cells.
Correct Answer is B
Explanation
Choice A: Comprehension of simple commands is an earlier developmental stage and not directly related to the infant's ability to search for a fallen toy.
Choice B: Exploration beyond caregiver presence is a key characteristic of the sensorimotor stage in Piaget's theory. During this stage, infants develop object permanence and begin to explore their environment independently.
Choice C: Visible or audible separation anxiety is common during the early stages of infancy and is not specific to the sensorimotor stage.
Choice D: The ability to place objects in a container is more related to later developmental stages when fine motor skills are more developed.
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