Final answer:
A glucose level of 238 mg/dL in a patient receiving continuous total parenteral nutrition is a concern for hyperglycemia and should be reported to the provider, as it is above the normal threshold.
Step-by-step explanation:
The nurse should report a glucose level of 238 mg/dL to the provider when a client is receiving continuous total parenteral nutrition. This value is above the normal threshold, which can cause concern for hyperglycemia, potentially pointing to issues like insulin resistance or inadequate insulin dosing related to the parenteral nutrition therapy. Hyperglycemia requires prompt attention in a clinical setting to adjust the nutritional formulation or to provide insulin therapy as needed. The other laboratory results mentioned (potassium 4.7 mEq/L, calcium 9.8 mg/dL, sodium 140 mEq/L) are within normal ranges and typically would not require immediate reporting to a healthcare provider.