1. What is a likely diagnosis of this patient’s disorder based on the preliminary data? 2. What additional tests should be performed? 3. What two specific analytes would aid in the differential...

1. What is a likely diagnosis of this patient’s disorder based on the preliminary data?

2. What additional tests should be performed?

3. What two specific analytes would aid in the differential diagnosis of this patient’s condition?

4. Why did this patient not experience cutaneous symptoms?

5. How would the analysis of fecal porphyrins aid in the differential diagnosis?

6. Would the Watson-Schwartz test be of use in this case?

7. What is the biochemical defect in this case?