Which of the following describes the condition where the pulse is less than 60 with signs of poor perfusion?

The condition where the pulse is less than 60 beats per minute accompanied by signs of poor perfusion is best described as cardiac arrest. In pediatric patients, bradycardia is often a sign of inadequate cardiac output, and when combined with poor perfusion—such as cool extremities, altered mental status, or prolonged capillary refill—indicates a serious situation that can lead to cardiac arrest.

During cardiac arrest, the heart is unable to pump effectively, resulting in the cessation of effective circulation. In contrast, the other conditions listed do not specifically encompass both a markedly low pulse rate and signs of poor perfusion together. For instance, respiratory distress may be present without a compromised pulse, while shock indicates inadequate perfusion typically due to hypovolemia or sepsis and might not specifically define the heart rate alone without assessing the overall responsiveness of the body. Hypotension focuses on blood pressure rather than pulse rate and perfusion status. Understanding the critical signs and symptoms associated with these conditions is essential for effective assessment and intervention in pediatric emergencies.