A nurse is evaluating the allergy profile of a client who has Graves' disease and is to undergo a thyroid scan. The nurse should identify which of the following allergies as a contraindication for the client to undergo a thyroid scan?

A. Alendronate should be taken on an empty stomach, preferably in the morning, and the client should wait at least 30 minutes before eating or drinking anything other than water.

B. Alendronate should be taken in the morning, not at bedtime, to reduce the risk of esophageal irritation and ensure proper absorption.

C. Taking alendronate with 8 ounces of water helps facilitate proper absorption and reduces the risk of esophageal irritation.

D. Increasing caffeine intake while taking alendronate is not recommended, as caffeine can interfere with calcium absorption and potentially worsen osteoporosis.

A. Failure to engraft typically presents with symptoms such as persistent neutropenia, thrombocytopenia, and anemia, rather than skin peeling.

B. Veno-occlusive disease, also known as sinusoidal obstruction syndrome, can lead to liver dysfunction and subsequent skin manifestations such as peeling, especially on the palms and soles.

C. Graft-versus-host disease (GVHD) typically presents with symptoms such as skin rash, diarrhea, and liver dysfunction, but peeling skin is not a hallmark manifestation.

D. Pancytopenia refers to a deficiency of all types of blood cells (red blood cells, white blood cells, and platelets) and is not typically associated with skin peeling as a primary symptom.