This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacotherapy in psychiatry, Subject name: Anatomy
a patient had psychotic symptoms and was staed on haloperidol and clonazepam. he was agitated and hence needed both oral and intramuscular injections.he developed fever, rigidity, confusion, with elevated CPK and liver enzymes . he was brought to the emergency. what is the probable diagnosis 
Select and explain. 
A. neuroleptic malignant syndrome, B. malignant catatonia, C. serotonin syndrome, D. geganhalten
A: neuroleptic malignant syndrome
Answer: A: neuroleptic malignant syndrome 
Explanation: Neuroleptic malignant syndrome is psychiatric emergency CLINICAL CRITERIA * 106:F * Abrupt onset * Any of the two * Diaphoresis * Tachycardia Labile bp ETIOLOGY Introduction of Dopamine antagonists or Abrupt Discontinuation Of an antipsychoticRef. kaplon and sadock, synopsis of psychiatry, 11 th edition, pg no.925