The client with hypophosphatemia who is undergoing intravenous phosphorus replacement suddenly has a positive Trousseau sign. What is the correct interpretation of this finding?
A. The client is dehydrated.
B. The hypophosphatemia is worsening.
C. The phosphorus replacement is causing hypocalcemia.
D. Rehydration is too rapid and overhydration is occurring.
C
Calcium and phosphorus exist in the blood in a balanced, reciprocal relationship. When the blood level of one increases, the other decreases. Thus, rapid correction of hypophosphatemia can cause hypocalcemia.
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