What is the heart rate threshold for sinus tachycardia in neonates?

The threshold for sinus tachycardia in neonates is defined as a heart rate exceeding 160 beats per minute. This point is critical for assessing the condition of a newborn in the clinical setting. A heart rate above this level indicates sinus tachycardia, which can be a response to various factors such as dehydration, sepsis, or other stressors affecting the neonate's condition.

Understanding the physiological differences in neonates is essential, as their normal heart rate ranges from approximately 120 to 160 bpm when calm. Thus, distinguishing sinus tachycardia at above 160 bpm is vital for timely intervention and treatment. Neonates who present with heart rates significantly higher than this threshold may require immediate assessment to identify any underlying issues contributing to the elevated heart rate.