PGICH Noida NO-2025
Medical & Surgical Nursing
Easy
What is the Parkland formula commonly used for?
Appeared in: PGICH Noida NO-2025
Explanation
- The Parkland formula, also known as the Baxter formula, is a critical tool used to calculate the amount of intravenous fluid needed for a patient in the first 24 hours after a significant burn injury.
- Its primary purpose is to guide fluid resuscitation to prevent burn shock, a form of hypovolemic shock caused by massive fluid loss from the burn wounds.
- The formula is: 4 mL of Lactated Ringer's solution × body weight in kilograms × percentage of Total Body Surface Area (%TBSA) burned.
- The administration schedule is crucial: half of the total calculated volume is infused over the first 8 hours from the time of injury, and the remaining half is infused over the next 16 hours.
Why Other Options Were Wrong
- Option A: The Parkland formula is a systemic fluid calculation and has no application in assessing localized ocular injuries like a limbal burn from acid exposure.
- Option C: This is a common misconception. The Parkland formula uses the Total Body Surface Area (TBSA) percentage as a variable in its calculation; it does not calculate the TBSA itself.
- Option D: Similar to the first option, this is incorrect because the Parkland formula is for systemic resuscitation, not for measuring the extent of a localized burn on the eye.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Parkland formula for burn fluid resuscitation as background academic context rather than a clinical decision trigger.
- Accurate and timely fluid resuscitation using the Parkland formula is a cornerstone of modern burn care, significantly reducing mortality from burn shock.
- Nurses play a vital role in titrating the fluid rate based on the patient's response, primarily by monitoring hourly urine output. The goal is the most important indicator of adequate organ perfusion.
- What if? If a patient's urine output drops below the target (e.g., less than 30 mL/hr for an adult), the nurse should increase the IV fluid rate (as per protocol, often by 10-20%) and notify the provider, as this indicates inadequate resuscitation.
How to Approach the Question
- First, identify the key term in the question: 'Parkland formula'. This is a specific medical calculation.
- This is a factual recall question. Access your knowledge of common formulas used in emergency and critical care nursing.
- Analyze the options to see how they relate to the key term. The Parkland formula is famously associated with burn injuries.
- Eliminate options that are clearly incorrect. Options A and D relate to eye injuries, which are localized and not the subject of a major systemic fluid formula.
- Differentiate between the remaining two options. Option C is about calculating the size of the burn (TBSA), while Option B is about calculating the fluid needed for the burn. Recall that the formula uses TBSA as an input to determine fluid volume, making B the correct purpose.
Concept Tested & Keywords
- Concept Tested: Parkland formula for burn fluid resuscitation
- Stem keywords: Parkland formula
- Lead-in keywords: commonly used for
Question ID
QX8T-k8lwpxDMEZX-iKWO_
Reference Book
E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 694-696
E6 Ghai Essential Pediatrics(pp 26-904 of 913) pp. 748-750, 747-749
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