The nurse is caring for a client who is receiving external beam radiation for treatment of right upper lobe lung cancer. What problem should be anticipated following this treatment?

A. Using a soft toothbrush is appropriate for preventing bleeding, but it does not directly indicate an understanding of neutropenia or its implications for infection risk.
B. Babysitting a young child may expose the client to infections, which is not safe for someone with neutropenia. This statement shows a lack of understanding.
C. Calling the oncologist when experiencing an increased temperature is critical because it may indicate an infection, which is a major concern for clients with neutropenia. This statement reflects an appropriate understanding of the condition.
D. While wearing a mask can be beneficial in some situations, stating that it must be worn at all times is not necessary and shows a misunderstanding of the guidelines for reducing infection risk in neutropenia.

A. Magnesium at 2.0 mEq/L is within the normal range (1.6-2.2 mg/dL) and does not require immediate intervention.
B. A serum sodium level of 126 mEq/L indicates hyponatremia, which can lead to neurological complications, particularly in patients with brain cancer. Immediate reporting is necessary to manage potential risks such as seizures or altered mental status.
C. A potassium level of 3.5 mEq/L is on the lower limit of normal (3.5-5.3 mEq/L) but is still considered acceptable and does not require urgent action.
D. Calcium at 10 mg/L is an incorrect unit for this context, as total serum calcium is typically measured in mg/dL, and 10 mg/dL falls within the normal range (8.2-10.2 mg/dL).