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
Therapeutic uses of calcium salts include the following except: 
Select and explain. 
A. Osteoporosis, B. Disorder of coagulation., C. Laryngospasm., D. Extreme hyperkalemia.
B: Disorder of coagulation.
Answer: B: Disorder of coagulation. 
Explanation: Calcium is used in the treatment of calcium deficiency states like osteoporosis, tetany and laryngospasm. Calcium gluconate is used to reverse some of the cardiotoxic effects of hyperkalemia and it may be life saving. Though calcium is involved in blood coagulation, it is not used to treat coagulation disorders.