During a well-child visit for the 4-month-old child, the nurse palpates hard nodules where each rib joins the sternum. The nurse reports this finding to the provider and requests which lab studies for this patient? Select all that apply.

The nurse is reviewing the lab results of a patient with heart failure and notes a sodium of 126 mEq/dL. Which action by the nurse would be appropriate, if agreed to by the provider?

Several tenants from an apartment building are brought to the emergency department with concern for carbon monoxide poisoning. One patient presents with reddish-purple skin, a blood pressure of 94/48 mmHg, heart rate of 118 bpm, and altered consciousness (arouses when his name is shouted). The nurse anticipates testing will reveal which carbon monoxide level?