What is the normal range for respiration rates in adults?

The normal range for respiration rates in adults typically falls between 12 to 20 breaths per minute, and thus the closest choice provided is 10-20 breaths per minute. This range indicates that most healthy adults breathe at a rate that allows for adequate ventilation and gas exchange without undue strain.

Respiration rate is a vital sign that reflects various physiological conditions and can help assess a person's health status. Rates below or above this range may indicate a need for further evaluation, as they can suggest respiratory or systemic issues. The ranges provided in other choices either fall below the normal threshold or exceed it, making them less accurate for assessing typical adult respiration rates.