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A female asked:

I have low hemoglobin and high levels of calcium. frequent tachycardia episodes made me do the blood test. what can this be? thanks

1 doctor answer1 doctor weighed in
Dr. Ajay Acharya
A Verified Doctoranswered
39 years experience
Depends: Simple anemia....low hemoglobin can cause tachycardia. Marginal high calcium has no effect. Very high, may need parathyroid evaluation....that may relate to tachycardia also.
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