A client reports feeling numbness and tingling in the extremities. Which of the client's serum laboratory values should the practical nurse (PN) review before reporting the finding?

The correct answer is D. Electrolytes. Choice A rationale: The white blood cell count (WBC) is typically reviewed for signs of infection or inflammation, but it is not directly related to numbness and tingling. Choice B rationale: Hematocrit levels assess the proportion of red blood cells in the blood, which are not commonly associated with numbness and tingling. Choice C rationale: Albumin and protein levels are important for nutritional status and overall health but are not directly associated with numbness and tingling. Choice D rationale: Electrolytes are crucial for nerve function and muscle contractions. Abnormal levels of electrolytes (such as calcium, potassium, or sodium) can lead to symptoms like numbness and tingling in the extremities.