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: Psychiatry
A patient was on treatment with trifluperazine for some time. He presents with complaint of hypehermia, lethargy and sweating. Needed investigations are 
Select and explain. 
A. CT Scan brain & hemogram, B. Hemogram, Electrolyte level and creatinine, C. ECG, Chest X-Ray and Hemogram, D. Hemogram, CPK and Renal Function Test
D: Hemogram, CPK and Renal Function Test
Answer: D: Hemogram, CPK and Renal Function Test 
Explanation: D i.e. Hemogram, CPK & Renal Function Test