Question

Increase in bleeding time and delay in blood coagulation occur due to deficiency of

• A. Adrenaline
• B. Noradrenaline
• C. Parathormone
• D. Thyroxine

Answer 1

The correct option is C Parathormone

Parathormone is secreted from the parathyroid gland and increases blood calcium level by increasing the reabsorption of calcium from the bones. A deficiency of parathormone causes deficiency of calcium in blood. Calcium plays an important role in blood coagulation as aggregation of platelets and formation of fibrin fibres at the wound site require calcium.

So, the correct answer is 'Parathormone'.