A patient suffered from 3rd degree burn of right upper limb, 21’d degree burns of right lower limb and 1st degree burn of whole of the back. Total percentage of burn will be?
**Core Concept**
The patient has sustained burns to different parts of the body, and the total percentage of burn can be calculated using the Rule of Nines. This rule is a rough estimate used to calculate the total body surface area (TBSA) affected by burns.
**Why the Correct Answer is Right**
To calculate the total percentage of burn, we need to apply the Rule of Nines:
- Head and neck: 9%
- Each arm: 9%
- Chest and abdomen: 18%
- Each leg: 18%
- Back: 18%
- Perineum: 1%
For this patient:
- The 3rd degree burn on the right upper limb is 9%
- The 2nd degree burn on the right lower limb is 18%
- The 1st degree burn on the back is 18%
Adding these percentages, we get: 9 + 18 + 18 = 45%
**Why Each Wrong Option is Incorrect**
**Option A:** This option does not provide a clear calculation or reasoning.
**Option B:** This option incorrectly assumes the total percentage of burn is simply the sum of the burns on the upper and lower limbs without considering the burn on the back.
**Option C:** This option incorrectly assumes the burn on the back is a 1st degree burn, but it's actually a 2nd degree burn, and it should be calculated as 18%.
**Clinical Pearl / High-Yield Fact**
When calculating the total body surface area affected by burns, remember to use the Rule of Nines as a rough estimate, and consider the severity of the burn (1st, 2nd, or 3rd degree) when calculating the percentage of burn.
**Correct Answer:** A. 45%