<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing dry skin, night blindness and frequent infections. I guess it might be due to Vitamin A deficiency. What medical tests should I take?  <response>: You might need to take a complete physical skin exam performed to assess the extent of skin damage. Additionally, wound care management might be needed. Vitamin A deficiency can also cause corneal damage, so a corneal transplant may be necessary. However, I dont recommend excision of skin lesions or Transurethral resection of prostate TURP. As for coronary thrombolysis, its not related to your symptoms. 