A client is admitted to the emergency department with a magnesium level of 1.2 mg/dL. The nurse is aware that a likely cause of the value is which of the following:
Alcoholism.
Dehydration.
Kidney failure.
Excessive magnesium intake.
The Correct Answer is A
Choice A rationale
Alcoholism is a common cause of hypomagnesemia due to poor dietary intake, increased renal excretion, and gastrointestinal losses. Chronic alcohol consumption leads to malnutrition and loss of magnesium through the urine, contributing to low magnesium levels.
Choice B rationale
Dehydration typically leads to hemoconcentration, which can elevate, rather than decrease, magnesium levels. Thus, it is not usually associated with low magnesium levels.
Choice C rationale
Kidney failure generally causes hypermagnesemia, not hypomagnesemia, because the kidneys cannot efficiently excrete magnesium, leading to its accumulation in the blood.
Choice D rationale
Excessive magnesium intake would result in hypermagnesemia, not hypomagnesemia, as the body accumulates more magnesium than it can excrete.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice B rationale
Potassium levels should be reviewed before administering furosemide. Furosemide is a loop diuretic that can cause significant potassium loss through increased urine output. Monitoring potassium is crucial to prevent hypokalemia, which can lead to cardiac arrhythmias and other serious complications.
Choice A rationale
Bicarbonate levels are not directly impacted by furosemide use and are less critical to review in this context. While they are important in assessing acid-base balance, they are not the primary concern when administering furosemide.
Choice C rationale
Phosphate levels are not typically affected by furosemide and are not the main focus before administration. Monitoring phosphate might be important in other scenarios, but it is not directly relevant here.
Choice D rationale
Carbon dioxide levels are more relevant to respiratory function and acid-base balance but are not directly impacted by furosemide. The focus should be on monitoring electrolytes, particularly potassium, to prevent complications from diuretic therapy.
Correct Answer is C
Explanation
Choice A rationale
Administering post-procedure antibiotics is not typically required for a bronchoscopy unless there is evidence of infection. The procedure itself does not inherently pose a high risk of infection requiring antibiotics as a preventative measure.
Choice B rationale
Providing pre-procedure sedation is important to ensure the client is comfortable and relaxed during the bronchoscopy. This helps minimize discomfort and anxiety associated with the procedure.
Choice C rationale
Ensuring the client is NPO (nothing by mouth) for a specific period before the procedure is crucial to prevent aspiration. Aspiration can occur if the client has food or liquid in their stomach, posing a serious risk during the insertion of the bronchoscope.
Choice D rationale
Encouraging the client to drink plenty of fluids before the procedure is not appropriate because the client needs to be NPO to prevent aspiration risks during the bronchoscopy.
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