A nurse is helping assistive personnel with documenting a client's weight in the medical record. Which of the following should the nurse identify as a metric unit?

A) Pound: This is a unit of weight commonly used in the imperial system, not in the metric system. While pounds are often used in everyday measurements in some countries, they are not the standard metric unit for documenting weight in medical records. B) Ounce: This is another unit of weight used in the imperial system, typically for smaller weights. Like pounds, ounces are not part of the metric system and should not be used for documentation if metric units are required. C) Kilogram: This is the standard metric unit of weight and is widely used in medical settings for documenting a client's weight. The metric system is preferred in healthcare because it provides a standardized and universally accepted method of measurement. D) Pint: This is a unit of volume used in the imperial system, not a unit of weight. It is used for measuring liquids and is not relevant for documenting a client's weight in the medical record.