<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Which of following is not absorbed in PCT:
Options:
A. Bicarbonate
B. Sodium
C. Phosphate
D. H+
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is D: H+. Explanation: D i.e. H+<|im_end|>
