Table 4.

Additional Tests Needed in Specific Situations.

Test	Situation
Iron studies	Anemia (all Indian patients, as common), iron overload
Serum Vitamin B12	Anemia (all Indian patients, as common)
Reticulocyte count	Anemia
Vitamin D3	Bone disease (all Indian patients, as common)
Serum calcium, phosphorous, parathormone	Rule out other causes of bone disease
Platelet function studies	Thrombocytopenia resistant to treatment
Platelet antibodies	Thrombocytopenia resistant to treatment
Antibodies to imiglucerase	Poor response to ERT
HBsAg, anti HCV	All transfused patients

ERT: Enzyme replacement therapy.