How would removal of calcium ions from a blood sample affect coagulation?
A) The coagulation pathway would be lacking a required cofactor at many steps.
B) Coagulation would be prevented.
C) There would be no effect because magnesium can substitute for calcium.
D) The coagulation pathway would be lacking a required cofactor at many steps and coagulation would be prevented.
E) There would be no effect because calcium is not a necessary cofactor in coagulation.
Answer: D
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