Why Hydration Is Critical for Blood Donors
Donors should drink plenty of fluids, especially water, before and after donation. Key reasons:
1. Blood Volume Restoration
Donation removes 450–500 mL of blood. Adequate fluid intake helps replenish volume.
2. Blood Pressure Regulation
Dehydration lowers blood volume, causing dizziness or lightheadedness.
3. Blood Flow Maintenance
Good hydration ensures proper circulation during donation.
4. Prevention of Dehydration Symptoms
Fatigue, headaches, cramps, and dizziness can be avoided.
5. Support for Blood Cell Production
Hydration aids red blood cell regeneration.
Drink 16–24 ounces of water before donation and continue afterward to support recovery.
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