What heart rate in infants or toddlers should prompt further assessment?

A heart rate greater than 180 beats per minute in infants or toddlers should prompt further assessment because it is indicative of potential tachycardia, which can be a sign of underlying conditions that require further investigation. In this age group, the normal heart rate typically ranges from about 100 to 160 beats per minute. Rates exceeding 180 can be concerning, as they may suggest an increased workload on the heart and may be associated with conditions such as fever, dehydration, heart issues, or other factors affecting the body’s response.

Monitoring and assessing a heart rate in this range is essential because elevated heart rates, particularly beyond this threshold, can lead to decreased cardiac output and potential organ dysfunction if not addressed promptly. Clinicians often look for other signs of distress or underlying issues to provide appropriate care. Therefore, a heart rate greater than 180 signifies the need for additional evaluation to ensure the child's safety and health.