<prompt> Nitrates are not used in -CCFEsophageal spasmRenal colicCyanide poisoning  <response>: Ans. is c i.e., Renal colic Uses of nitrates Angina pectoris MI CHF and acute LVF -- nitroglycerine i.v. can be used Act by decreasing preload LV filling pressure. Biliary colic and esophageal spasm achalasia cardia Acute coronary syndrome unstable angina and non-ST segment elevation Ml. Cyanide poisoning 