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?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: Which laboratory tests are utilized for the diagnosis of Peutz-Jeghers syndrome? [/INST] \n 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</s>