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Plasma constitutes approximately what fraction of blood by volume?

AAround 25 per cent of total blood volume
BAround 55 per cent of total blood volume
CAround 75 per cent of total blood volume
DAround 90 per cent of total blood volume
Answer & Solution
Correct answer: B. Around 55 per cent of total blood volume
Plasma is roughly 55% of blood. Formed elements make up the remaining 45%. Plasma itself is 90-92% water and 6-8% proteins (albumins, globulins, fibrinogen).
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