The patient weighs 143 pounds. What is the patient’s weight in kilograms?
The Correct Answer and Explanation is:
To convert the patient’s weight from pounds to kilograms, we can use the conversion factor:
1 kilogram (kg) = 2.20462 pounds (lbs).
Formula for Conversion:
[
\text{Weight in kilograms} = \frac{\text{Weight in pounds}}{2.20462}
]
Step-by-Step Conversion:
Given that the patient weighs 143 pounds, we apply the conversion formula:
[
\text{Weight in kilograms} = \frac{143 \, \text{lbs}}{2.20462} \approx 64.86 \, \text{kg}
]
Thus, the patient’s weight is approximately 64.86 kilograms.
Explanation:
In healthcare, accurate weight conversion between pounds and kilograms is important because medical dosages, BMI (Body Mass Index) calculations, and many clinical assessments are commonly done in kilograms. The standard conversion factor of 2.20462 pounds per kilogram is widely used in clinical settings.
To perform the conversion manually, we simply divide the patient’s weight in pounds by the conversion factor. If the patient’s weight is expressed in pounds, it must be converted to kilograms for certain medical procedures or when working with international guidelines, as many countries outside the United States use the metric system (kilograms) in medical contexts.
For example, in countries such as the UK, Canada, and most of Europe, health professionals typically measure weight in kilograms. In the United States, pounds are more commonly used, but kilograms are often used in medical charts or lab results, especially when interpreting lab values or calculating drug dosages based on body weight.
In practice, if you encounter weight in pounds in a clinical setting, it’s essential to perform the conversion to kilograms, especially for medications, calculations of total body surface area (TBSA), and other healthcare metrics that require the metric system. Using the correct conversion ensures the accuracy of calculations, leading to more reliable and safe medical decisions.