A nurse is caring for a client who is a long-term alcoholic. The client presents to the emergency department with vomiting and diarrhea for several days. Which findings would the nurse expect to find in this client?
dysphagia
hypoactive deep tendon reflexes (DTR)
hypomagnesemia
positive Chvostek sign hypertension
The Correct Answer is C
A) Dysphagia: While dysphagia (difficulty swallowing) can occur in individuals with long-term alcohol use, especially if there is coexisting neurological damage or esophageal disorders, it is not specifically associated with vomiting and diarrhea in the context of this scenario. The primary concern here involves electrolyte imbalances.
B) Hypoactive deep tendon reflexes (DTR): Hypoactive DTRs are typically associated with hypermagnesemia rather than hypomagnesemia. In this case, the client's condition is more likely to lead to electrolyte deficiencies, including hypomagnesemia, due to vomiting, diarrhea, and poor nutritional intake.
C) Hypomagnesemia: Chronic alcohol use often results in nutritional deficiencies, and vomiting and diarrhea can further exacerbate this by depleting electrolytes. Hypomagnesemia is a common finding in long-term alcoholics due to poor dietary intake, gastrointestinal losses, and renal losses. This can lead to symptoms such as muscle weakness, tremors, and altered mental status. Hypomagnesemia is particularly concerning because it can affect cardiovascular stability and neuromuscular function.
D) Positive Chvostek sign: A positive Chvostek sign is indicative of hypocalcemia, which can occur secondary to hypomagnesemia. However, it is not as directly associated with chronic alcoholism as hypomagnesemia itself. The positive Chvostek sign involves a facial muscle spasm in response to tapping the facial nerve and indicates neuromuscular irritability due to low calcium levels. While related, the primary electrolyte imbalance expected here is hypomagnesemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) D5W: Dextrose 5% in water (D5W) is not used with blood transfusions because it can cause hemolysis of the red blood cells due to its hypotonic nature. It can also potentially cause clumping and clotting.
B) 0.3% NS: This is a hypotonic saline solution, which can lead to hemolysis of red blood cells when used as a diluent for blood products. It is not appropriate for use in blood transfusions.
C) Lactated Ringers: Although lactated Ringer's solution is often used for fluid resuscitation, it contains calcium, which can cause clotting in the blood product. Therefore, it is not suitable for use with blood transfusions.
D) 0.9% NS: Normal saline (0.9% sodium chloride) is isotonic and the only solution recommended for use with blood transfusions. It does not cause hemolysis of red blood cells, does not alter the composition of the blood product, and helps to maintain the patency of the IV line. It is the standard diluent used in blood transfusions to ensure the safe administration of blood products.
Correct Answer is D
Explanation
A) Constipation: Elevated potassium levels (hyperkalemia) typically affect neuromuscular and cardiac function rather than gastrointestinal motility. Constipation is more commonly associated with conditions like hypokalemia or electrolyte imbalances affecting the gastrointestinal system.
B) Polyuria: Polyuria, or excessive urination, is not directly caused by hyperkalemia. It can occur due to conditions like diabetes mellitus or diabetes insipidus, or as a side effect of certain medications like diuretics. Hyperkalemia does not typically lead to increased urine output and may even lead to oliguria if severe renal impairment occurs.
C) EKG with a U wave: The presence of a U wave on an electrocardiogram (EKG) is typically associated with hypokalemia, not hyperkalemia. U waves are seen when potassium levels are low, reflecting delayed repolarization of the ventricles. In hyperkalemia, EKG changes more commonly include peaked T waves, prolonged PR interval, and widened QRS complexes.
D) Paresthesias of the extremities: Hyperkalemia can cause paresthesias, which are sensations of tingling or numbness, particularly in the extremities. This occurs due to the effect of elevated potassium levels on nerve and muscle function. As potassium is essential for maintaining normal neuromuscular function, deviations from normal levels can disrupt action potentials and lead to sensory disturbances like paresthesias.
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