The Parkland formula for burns resuscitation in the first 24 hours is: 4 mL × body weight (kg) × % BSA burned of Ringer's lactate. Half is given in the first 8 hours from the TIME OF BURN. A 70 kg adult sustains 40% BSA burns at 10:00 AM. He arrives at the burn center at 2:00 PM. What volume of RL should be given in the remaining 4 hours of the first 8-hour window?
- A 5,600 mL ✓
- B 2,800 mL
- C 7,000 mL
- D 3,500 mL
Correct answer: A. 5,600 mL
Explanation
Total 24-hour volume = 4 × 70 × 40 = 11,200 mL. Half (5,600 mL) is due in the first 8 hours from time of burn (10 AM to 6 PM). He arrives at 2 PM — only 4 hours remain in the 8-hour window. The ENTIRE first-half volume of 5,600 mL must be given in these remaining 4 hours (the time lost is not deducted; the deficit is backloaded). Therefore, 5,600 mL is given in the 4 hours from 2 PM to 6 PM. The second half (5,600 mL) is given over the next 16 hours.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.