# A nurse is assessing a 3-day-old newborn for signs of pathological hyperbilirubinemia. Which assessment finding would be most concerning and require immediate intervention?

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=543275  
> language: ko  
> subject: Maternal Newborn Health

## 문제

A nurse is assessing a 3-day-old newborn for signs of pathological hyperbilirubinemia. Which assessment finding would be most concerning and require immediate intervention?

## 보기

1. Jaundice appearing on the face and extending to the chest
2. Jaundice present at birth with rapid progression to the abdomen within 24 hours **✔ 정답**
3. Mild jaundice appearing on day 2 of life limited to the face
4. Jaundice appearing on day 3 extending from face to upper chest

**정답: 2**

## 해설

Jaundice present at birth with rapid progression within 24 hours indicates pathological hyperbilirubinemia requiring immediate intervention due to risk of kernicterus. Other options describe physiological jaundice or less concerning patterns.

## 심화 해설

Clinical Judgment
This question evaluates the ability to distinguish between pathological jaundice and physiological jaundice in newborn assessment. The key is to identify the finding that is "most concerning and requires immediate intervention." In the context of a 72-hour-old (3-day-old) newborn, physiological jaundice normally appears at 2-3 days of life and progresses gradually. In contrast, the most important warning signs of pathological jaundice are **onset within 24 hours of birth** and **rapid progression**. Option 2 includes both of these warning signs (Notify HCP!), suggesting a serious hemolytic disease (e.g., ABO/Rh incompatibility) or infection, requiring immediate evaluation and initiation of phototherapy.

Memory Tip: Remember the **P**attern of **P**athological jaundice: "**P**remature (within 24 hours of birth) & **P**rogresses **P**romptly." Physiological jaundice is "**D**ay 2-3, **D**ownward (head to toe), **D**isappears in 2 weeks."

KR vs US: In Korea, newborns are often discharged relatively early, posing a risk of jaundice progression at home. In the US, risk is classified based on bilirubin levels before discharge, and follow-up using a portable device (transcutaneous bilirubinometer) is more common when needed. In both countries, jaundice within 24 hours of birth is universally recognized as an absolute emergency.

## 임상 시나리오

Clinical Practice Guide
When assessing jaundice, you can use Kramer's Rule to visually estimate the degree of progression: face (Zone 1) -> chest (Zone 2) -> abdomen (Zone 3) -> legs (Zone 4) -> palms and soles (Zone 5). Jaundice confined to Zone 1 is often mild, but if it progresses to Zone 3 or beyond, a serum bilirubin test is necessary. However, since this method is subjective, if symptoms such as jaundice within 24 hours of birth, rapid progression, lethargy/feeding difficulty are present, you should not rely on Kramer's Rule and must report immediately.
Caution: In SATA (Select All That Apply) questions, traps that confuse "normal findings of jaundice" with "pathological findings" are frequently presented. "Jaundice on the face and chest at 3 days of age" (option 4) can be a typical presentation of physiological jaundice, so it should not be selected as the "most concerning" finding.

## 핵심 개념

- **Pathological Hyperbilirubinemia** — Hyperbilirubinemia that is outside the physiological range, with features of early onset (within 24 hours of birth), rapid rise, or prolonged persistence. There is an underlying condition and immediate treatment is required.
- **Physiological Jaundice** — Begins 2-3 days after birth, peaks within 1 week, and resolves within 2 weeks. This is normal newborn jaundice. It occurs due to immature liver function and does not require special treatment.
- **Kernicterus** — Irreversible brain damage caused by the deposition of unconjugated bilirubin in the basal ganglia of the brain due to severe hyperbilirubinemia. It can lead to cerebral palsy, hearing loss, and intellectual disability.
- **Cephalocaudal Progression** — Jaundice starting from the head (face) and gradually progressing to the trunk, legs, and tips of the hands and feet. This is a characteristic progression pattern of physiological jaundice.
- **Phototherapy** — Primary treatment for hyperbilirubinemia. Blue light of a specific wavelength is applied to the skin to convert bilirubin deep within the skin into a water-soluble form, helping it to be excreted through stool and urine.

## 같은 주제 문제

- [A nurse is assessing a 1-day-old newborn for signs of pathological jaundice.](https://mymerci.kr/pages/nclex_q.php?qn_id=543276)
- [A nurse is assessing a 1-week-old infant for signs of pathological jaundice. Which assessm…](https://mymerci.kr/pages/nclex_q.php?qn_id=543277)
- [A nurse is caring for a 4-day-old newborn with severe hyperbilirubinemia (total serum bili…](https://mymerci.kr/pages/nclex_q.php?qn_id=543278)
- [A nurse is caring for a 4-day-old newborn with severe hyperbilirubinemia. The total serum …](https://mymerci.kr/pages/nclex_q.php?qn_id=543279)
- [A nurse is caring for a 3-day-old newborn with severe hyperbilirubinemia. The total serum …](https://mymerci.kr/pages/nclex_q.php?qn_id=543280)

---

More free questions: [기출문제](https://mymerci.kr/)

_학습 참고용입니다. 실제 임상은 최신 지침과 소속 기관 프로토콜을 따르세요._