The nurse is teaching a community group about nerve agents.
The nurse evaluates that the teaching has been effective when the participants state:
We should not drink tap water for a while.
We should stay indoors with the doors and windows closed until it is all clear.
We can be poisoned by breathing in nerve agents or through the skin.
We can use bactericidal soap and hot water at home to decontaminate ourselves.
The Correct Answer is C
Choice A rationale
Drinking tap water is not a primary concern with nerve agent exposure as these agents primarily affect the nervous system through inhalation, dermal absorption, or ingestion of contaminated food/water sources, not through tap water unless the water source itself is contaminated. Public water systems are usually well-protected.
Choice B rationale
While staying indoors with doors and windows closed is a valid protective measure against airborne contaminants like nerve agents, it doesn't encompass the full range of exposure routes, as nerve agents can also be absorbed dermally. Therefore, this statement alone is incomplete for effective teaching.
Choice C rationale
Nerve agents are organophosphorus compounds that inhibit acetylcholinesterase, leading to cholinergic crisis. They are highly volatile and can be inhaled as vapor or aerosol, or absorbed through the skin and mucous membranes, which makes this statement accurate regarding exposure pathways.
Choice D rationale
Decontamination from nerve agents typically involves immediate removal of contaminated clothing and washing with copious amounts of soap and water, or using reactive skin decontamination lotion (RSDL). However, bactericidal soap and hot water alone may not be sufficient for complete decontamination, and specialized decontamination procedures are often required in a hazardous material situation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Applying a fetal scalp electrode is an invasive procedure that provides a more accurate assessment of fetal heart rate. However, late decelerations indicate uteroplacental insufficiency requiring immediate interventions to improve fetal oxygenation before considering invasive monitoring.
Choice B rationale
Performing a vaginal exam can assess labor progress and rule out cord prolapse or other issues. While important, it is not the immediate priority when late decelerations indicate acute fetal hypoxemia; improving oxygenation to the fetus is paramount.
Choice C rationale
Inserting an intravenous catheter is essential for administering fluids or medications. However, the most immediate intervention for late decelerations is to improve uterine blood flow and fetal oxygenation, which is achieved through maternal repositioning as the first step.
Choice D rationale
Late decelerations indicate uteroplacental insufficiency, meaning reduced blood flow and oxygen to the fetus. Repositioning the client to the left-lateral position relieves pressure on the vena cava, improving venous return to the heart, thus increasing uterine blood flow and fetal oxygenation by optimizing placental perfusion.
Correct Answer is ["9.5"]
Explanation
Step 1 is: Calculate the total units in 1 mL. 25,000 units ÷ 250 mL = 100 units/mL.
Step 2 is: Calculate the mL/hour. 950 units/hr ÷ 100 units/mL = 9.5 mL/hr. The infusion pump would be set at 9.5 mL/hr.
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