A 30-year-old man sustains 40% TBSA (total body surface area) deep partial- and full-thickness burns. Using the Parkland formula (4 mL × weight × % TBSA), what is the total crystalloid volume to be given in the first 24 hours if he weighs 70 kg? What fraction is given in the first 8 hours?
- A Total 8,400 mL; first 8 hours: 4,200 mL
- B Total 11,200 mL; first 8 hours: 3,733 mL
- C Total 11,200 mL; first 8 hours: 5,600 mL ✓
- D Total 5,600 mL; first 8 hours: 2,800 mL
Correct answer: C. Total 11,200 mL; first 8 hours: 5,600 mL
Explanation
Parkland formula: 4 mL × 70 kg × 40% TBSA = 11,200 mL in 24 hours. Half (5,600 mL) is given in the first 8 hours (calculated from time of injury, not from hospital arrival), and the remaining half (5,600 mL) over the subsequent 16 hours. All options except A use incorrect multipliers or fractions. The Muir-Barclay formula (colloid-based, 0.5 mL × kg × %TBSA per 4-hour period) is an alternative but not asked here.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
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