All are true regarding renal changes in normal pregnancy except
Serum bicarbonate levels decreased by 4 → 5m Eq / L due to decreased renal bicarbonate threshold.
Serum creatinine decreases.
GFR and Renal plasma flow increase by 50%.
Increase in serum bicarbonate levels.
Increased placental metabolism of AVP may cause transient diabetes insipidus during pregnancy.