In burn resuscitation using Parkland formula, what is the time frame for administering the second half of the calculated lactated Ringer’s solution?

• A. 8 hours
• B. 16 hours
• C. 24 hours
• D. 32 hours

Answer: (B)

In Parkland resuscitation, you calculate a total LR fluid volume for the first 24 hours. Half of that total is given in the first eight hours after the burn, and the remaining half is delivered over the next sixteen hours. So the time frame for the second half is sixteen hours. For example, if the calculation yields 12 L, 6 L goes in during the first eight hours, and 6 L over the next sixteen hours. Timing starts from the moment of injury, not arrival at the hospital, and rates should be adjusted based on hemodynamic response and urine output. The other options don’t fit because eight hours would cover only the first half, while twenty-four or thirty-two hours would extend beyond the recommended window for the second half.