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: Forensic Medicine
What does Gettlers test detects ? 
Select and explain. 
A. Diatoms in drowning, B. Chloride content of blood in drowning, C. Weight in drowning, D. None
B: Chloride content of blood in drowning
Answer: B: Chloride content of blood in drowning 
Explanation: Ans. is 'b' i.e., Chloride content of blood in drowning Gettler test estimates chloride content of blood from both sides of hea. It is done for drowning. Normally the chloride content is equal in the right and left chambers of the hea (600 mg/100 m1). In fresh water drowning due to hemodilution the chloride content is decreased and in salt water drowning due to hemoconcentration the chloride content is increased in left side of hea. A 25% difference in chloride is significant but the test is of doubtful value.