Arizona Certified Nursing Assistant (CNA) Practice Test

When weighing a resident, what is crucial to check before use?

1. The resident's clothing

2. The scale is balanced or calibrated

3. The time of day

4. The resident's recent meal

The correct answer is: The scale is balanced or calibrated

Before weighing a resident, it is crucial to ensure that the scale is balanced or calibrated. A properly calibrated scale guarantees the accuracy of the weight measurement. If the scale is not balanced, it could lead to incorrect weight readings, which could impact the care and treatment of the resident. Accurate weight measurements are important for assessing hydration status, nutritional needs, and determining medication dosages that may depend on the resident's weight. While the resident's clothing, the time of day, and their recent meal can influence the weight measurement, they do not affect the fundamental operation and accuracy of the scale itself. Ensuring that the scale is appropriately set up is the primary step to obtaining a reliable weight. This foundational practice is essential for healthcare professionals to provide safe and effective care.