46yo man, known case of chronic GN presents to OPD. He feels well. BP = 140/90mmHg

46yo man, known case of chronic GN presents to OPD. He feels well. BP = 140/90mmHg. Urine
dipstick: protein ++, blood ++ and serum creatinine=106mmol/L. Which medication can prevent
the progression of this dx?
a. ACEi
b. Diuretics
c. Cytotoxic meds
d. Longterm antibiotics
e. Steroids
Ans. The key is A. ACEI. [renal impairment is delayed by ACEI].