<prompt> Contraindications of ACE inhibitors includeUnilateral renal aery stenosisBilateral Renal aery stenosisHypeensive emergenciesAll the above  <response>: ACE Inhibitors are contraindicated in BL renal aery stenosisThey can be used if benefits are more in UL stenosisThey are used in hypeensive emergencies eg: EnalaprilatRef: KD Tripathi 6th ed, Pg 484 