1. Complete blood count (CBC)
2 Biochemical blood tests (glucose, urea, creatinine, total bilirubin, indirect bilirubin, total protein, ALT, AST)
3. coagulation study (PT, PTT, INR).
4. ABO/Rh
5. Hepatitis C and B, syphilis, HIV.
6. Fluoroscopy
7. electrocardiogram (ECG)
8. Duplex scanning of veins of the lower limbs