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When whole blood is stored with an antic...

When whole blood is stored with an anticoagulant at `4°C` , the `K^(+)` ions move out from the RBC into the plasma. The most likely reasons for this is that

A

RBC haemolyses and hence leakage of `K^(+)` ions

B

`K^(+)` ions become more mobile at `4°C`

C

Active transport ceases resulting in ionic equilibrium

D

The anticoagulant attracts the `K^(+)` ions into the plasma

Text Solution

Verified by Experts

The correct Answer is:
B
Blood is stored with an anticoagulant at `4°C`. At normal temperature due to potassium pump, `K^(+)` ions are more inside RBC than plasma. Low temperature stops the potassium pump, i.e., inhibit active transport, K+ ions come out from RBCs resulting in ionic equilibrium.
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