A nurse is caring for a client who has a new prescription for lithium carbonate. Prior to administering the first dose, which of the following laboratory values should the nurse evaluate?

A. Administering furosemide may also be appropriate for managing heart failure symptoms, but the priority action based on the client's condition is to withhold digoxin.

B. The client's vital signs indicate bradycardia (pulse 52/min), which is a common adverse effect of digoxin, especially in the setting of heart failure. Withholding digoxin is necessary to prevent further exacerbation of bradycardia and potential toxicity.

C. Withholding spironolactone may be considered if there are concerns about electrolyte imbalances, but it is not the priority action in this scenario.

D. Administering ferrous sulfate is not indicated based on the client's chart findings; there is no indication of anemia or iron deficiency.

A. Failure to engraft is characterized by the absence of new bone marrow cell growth, leading to persistent low blood counts. It does not typically present with skin peeling or desquamation.

B. Veno-occlusive disease primarily affects the liver and presents with symptoms such as weight gain, hepatomegaly, and jaundice. Skin desquamation is not a common manifestation of this complication.

C. Graft-versus-host disease commonly affects the skin, liver, and gastrointestinal tract, with early signs including rash and desquamation of the hands and feet. This finding is a hallmark indication of this complication following a bone marrow transplant.

D. Pancytopenia involves a reduction in red blood cells, white blood cells, and platelets, leading to fatigue, infection risk, and bleeding. It does not typically cause skin peeling.