A nurse who is caring for a preschooler should question a prescription for which of the following antibiotics?

When caring for a client receiving a continuous infusion of total parenteral nutrition (TPN), the nurse should implement the intervention of checking the client's blood glucose level regularly. TPN is a highly concentrated intravenous nutrition solution containing glucose, amino acids, lipids, vitamins, and minerals, and it is used to provide complete nutrition when the client cannot take oral nutrition.

Monitoring blood glucose levels regularly is essential because TPN is rich in glucose, which can significantly affect the client's blood sugar levels. Hyperglycemia (high blood sugar) is a potential complication of TPN infusion. Regular blood glucose monitoring allows the nurse to detect and address any changes in blood sugar levels promptly and to adjust the TPN infusion rate or administer insulin, if necessary, to maintain the client's blood sugar within the target range.

Let's go through the other options:

A. Change the TPN infusion tubing once every 3 days: While changing the TPN infusion tubing regularly is a good practice to maintain asepsis and prevent infection, it is not the priority intervention in this situation. Regularly checking the client's blood glucose level is more crucial to monitor the effects of TPN on blood sugar levels.

C. Insert the peripheral IV catheter for administration: Total parenteral nutrition is a hypertonic solution that can cause irritation and damage to peripheral veins. It is usually administered through a central venous catheter (CVC) placed in a large vein, such as the subclavian or jugular vein. Inserting a peripheral IV catheter for TPN administration is not recommended due to the risk of vein damage and thrombosis.

D. Monitor the client's weight every 3 days: Monitoring the client's weight is an important part of assessing their nutritional status and fluid balance. However, the priority intervention for a client receiving TPN is checking their blood glucose level regularly, as hyperglycemia is a common and significant concern in TPN administration.

The nurse should monitor the following laboratory tests to determine the effectiveness of epoetin alfa:

B. Hemoglobin: Epoetin alfa is a medication used to treat anemia by stimulating red blood cell production. Monitoring hemoglobin levels can help assess if the medication is effectively increasing red blood cell production and improving anemia.

E. Iron: Iron is essential for red blood cell production. Monitoring iron levels can help determine if the client has adequate iron stores to support the increased production of red blood cells stimulated by epoetin alfa.

The other options listed, A. Thyroid-stimulating hormone, C. Blood glucose, and D. Alanine aminotransferase, are not directly related to the effectiveness of epoetin alfa in treating anemia. Thyroid-stimulating hormone is related to thyroid function, blood glucose is related to blood sugar control, and alanine aminotransferase is related to liver function. While these tests may be important for monitoring the overall health of the client, they are not specific indicators of the effectiveness of epoetin alfa.