**Core Concept:** Fast breathing in a pediatric patient is a clinical sign that can indicate respiratory distress or illness. The normal respiratory rate for a child of this age is around 20-30 breaths per minute depending on factors like activity level.

**Why the Correct Answer is Right:** In the context of a 3-year-old child, a respiratory rate greater than 60 breaths per minute would be considered abnormal and is indicative of respiratory distress or illness. Here, the correct answer "more than 60 breaths per minute" is right because it corresponds to the clinical threshold for considering fast breathing as abnormal in a pediatric patient.

**Why Each Wrong Option is Incorrect:**

A. Less than 20 breaths per minute is not considered normal for a 3-year-old child, and respiratory rate below this threshold may suggest dehydration or hypoxia. However, in this context, it is incorrect because it does not match the abnormal respiratory rate mentioned in the question.

B. The respiratory rate of 30 breaths per minute is normal for a 3-year-old child, and thus is incorrect in this context where the focus is on abnormal respiratory rates.

C. This option also refers to a normal respiratory rate and is thus incorrect for a 3-year-old child.

D. Although respiratory rate above 60 breaths per minute is considered abnormal, it is not specific to fast breathing in a 3-year-old child. This answer is incorrect because it does not address the abnormal respiratory rate specifically mentioned in the question (more than 60 breaths per minute).

**Clinical Pearl:** Fast breathing in a 3-year-old child should prompt a thorough clinical assessment to identify the underlying cause, which may include respiratory infections, asthma, bronchiolitis, or other respiratory diseases. Early recognition and prompt treatment of these conditions can significantly impact the child's prognosis and overall management.

**Correct Answer:** more than 60 breaths per minute

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**Core Concept:** Fast breathing or tachypnea is a clinical sign that can indicate respiratory distress or illness in pediatric patients. Tachypnea is defined as a respiratory rate greater than 60 breaths per minute in a child of this age group.

**Why the Correct Answer is Right:** In a 3-year-old child, a respiratory rate more than 60 breaths per minute is considered abnormal and can be indicative of respiratory illness or distress. This excessive respiratory rate is a clinical sign that warrants a comprehensive clinical assessment to identify the underlying cause.

**Why Each Wrong Option is Incorrect:**

A. Respiratory rate of 40 breaths per minute is normal for a 3-year-old child, making it incorrect in this context.

B. The respiratory rate of 50 breaths per minute is also normal for a 3-year-old child, making it incorrect in this context.

C. The respiratory rate of 60 breaths per minute is normal for a 3-year-old child, making it incorrect as well.

D. A respiratory rate of 70 breaths per minute is considered