The following laboratory tests may be helpful in the diagnosis of Peutz-Jeghers syndrome: 
Stool:
Stool guaiac test
Blood:
Complete blood count (CBC) to detect anemia Serum iron, total iron-binding capacity, and serum ferritin to detect iron deficiency anemia
Which laboratory tests are utilized for the diagnosis of Peutz-Jeghers syndrome?
<|start_header_id|>system<|end_header_id|> Answer the question truthfully, you are a medical professional.<|eot_id|><|start_header_id|>user<|end_header_id|> This is the question: Which laboratory tests are utilized for the diagnosis of Peutz-Jeghers syndrome?<|eot_id|><|start_header_id|>assistant<|end_header_id|> The following laboratory tests may be helpful in the diagnosis of Peutz-Jeghers syndrome: 
Stool:
Stool guaiac test
Blood:
Complete blood count (CBC) to detect anemia Serum iron, total iron-binding capacity, and serum ferritin to detect iron deficiency anemia<|eot_id|>