# A nurse is assessing a 1-day-old newborn during a routine examination. Which assessment finding would be considered the most concerning and require immediate intervention?

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=543202  
> language: ko  
> subject: Maternal Newborn Health

## 문제

A nurse is assessing a 1-day-old newborn during a routine examination. Which assessment finding would be considered the most concerning and require immediate intervention?

## 보기

1. Acrocyanosis of the hands and feet
2. Heart rate of 140 beats per minute during sleep
3. Presence of vernix caseosa in skin creases
4. Central cyanosis of the lips and tongue **✔ 정답**

**정답: 4**

## 해설

Central cyanosis of the lips and tongue indicates inadequate oxygenation and requires immediate intervention for potential respiratory or cardiac compromise. Other findings like acrocyanosis, normal heart rate during sleep, or vernix caseosa are normal or less concerning in newborns.

## 심화 해설

Clinical Judgment
This question assesses your **cognitive** and **cue recognition** abilities in distinguishing between normal findings and danger signs requiring immediate reporting during the initial newborn assessment. The key is understanding the difference between central cyanosis and acrocyanosis. Central cyanosis, a bluish discoloration of central areas like the lips, tongue, and mucous membranes, indicates serious hypoxemia and requires you to Notify HCP!. In contrast, bluish discoloration of the hands and feet in the first few days of life is a normal physiological phenomenon due to circulatory immaturity.

Memory Tip
Tip for distinguishing cyanosis: **C**entral = **C**ritical. **A**crocyanosis = **A**cceptable. Or remember, "Lips are a **L**ifesaving sign."

KR vs US
Both Korea and the US recognize central cyanosis as a critical sign. However, in the US NGN exam, questions asking for the 'most concerning' finding and requiring you to determine the need for immediate intervention through **prioritization** are extremely common. The core skill is clearly differentiating normal variants from pathological findings.

## 임상 시나리오

Clinical Practice Guide
Normal and cautionary findings during newborn physical assessment:
- Normal: Acrocyanosis (within 24–48 hours after birth), heart rate 120–160 beats/min (including during sleep), Vernix caseosa (especially in preterm infants or skin folds).
- Report immediately: Central cyanosis, persistent/severe respiratory distress, apnea, marked changes in vital signs.

Caution
In SATA (Select All That Apply) questions, if asked to choose "normal newborn findings," Acrocyanosis and Vernix can be correct answers, but in single-choice questions asking for "most concerning/requiring immediate intervention," central cyanosis is the definite correct answer. "Heart rate 140 beats/min" is within the normal range and is a distractor.

## 핵심 개념

- **Central Cyanosis** — Bluish discoloration of central areas such as the lips, tongue, and mucous membranes. It indicates decreased arterial oxygen saturation (generally below 85%) and is a sign of respiratory or cardiac insufficiency, requiring immediate evaluation and intervention.
- **Acrocyanosis** — Bluish discoloration of peripheral areas such as hands, feet, and around the lips. This is a normal physiological phenomenon commonly observed in newborns during the first 24-48 hours after birth, due to immature peripheral circulation and vasoconstriction.
- **Vernix Caseosa** — A whitish, cheese-like substance that protects the fetal skin inside the uterus. It is found more abundantly in premature infants than in full-term infants and is considered a normal newborn finding.
- **Newborn Assessment** — Comprehensive physical assessment performed immediately after birth and during the early postnatal period. Includes vital signs, anthropometric measurements, neurobehavioral evaluation, detection of congenital anomalies, and overall health status assessment.
- **Prioritization** — The process of determining the order of nursing interventions. It involves assessing the urgency and risk level of the patient's condition, addressing life-threatening problems (e.g., central cyanosis) first. One of the core competencies in the NGN exam.

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