This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Nitrates are not used in - 
Select and explain. 
A. CCF, B. Esophageal spasm, C. Renal colic, D. Cyanide poisoning
C: Renal colic
Answer: C: Renal colic 
Explanation: 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