This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2019, Subject name: Forensic Medicine
Calcium gluconate can be given in which acid poisoning? 
Select and explain. 
A. Sulphuric acid, B. Hydrofluoric acid, C. Nitric acid, D. Carbolic acid
B: Hydrofluoric acid
Answer: B: Hydrofluoric acid 
Explanation: Hydrofluoric Acid :- Ingestion of hydrofluoric acid is A/W hypocalcaemia, acidosis, and shock. Hydroflouric acid burns results in bone destruction, and excruciating pain. Toxicity result in hypocalcemia and hypomagnesemia On Dermal exposure: * Severe pain * Hydrofluoric acid penetrates the skin and mucous membranes, causing deep tissue destruction On ingestion:Severe burning pain followed by retching and vomiting. Treatment: Topical Skin Therapy: Local application of 2.5% calcium gluconate gel is the treatment of choice.Systemic: IV calcium & Magnesium sulfate until the normal levels are reached in blood.