**Question:** Late onset hemorrhagic disease of newborn is characterized by all of the following features except

A. Intracranial hemorrhage
B. Hypotonia
C. Respiratory distress
D. Jaundice

**Correct Answer:** D. Jaundice

**Core Concept:** Late onset hemorrhagic disease of newborn (HLH) is a rare but potentially severe complication in newborns, typically occurring after the first week of life. It is characterized by several clinical features that indicate bleeding disorders.

**Why the Correct Answer is Right:** Jaundice is a common physiological finding in newborns due to immature liver function and elevated bilirubin levels. While jaundice may indicate underlying liver disease or hemolysis, it is not a typical feature of late onset HLH. In HLH, the problem lies with platelet dysfunction and impaired coagulation, leading to hemorrhage.

**Why Each Wrong Option is Incorrect:**

A. Intracranial hemorrhage (A) is a key feature of HLH, indicating the bleeding tendency and impaired coagulation.
B. Hypotonia (B) is a clinical manifestation present in HLLH, suggesting muscle weakness due to impaired platelet function.
C. Respiratory distress (C) may be present in HLH due to associated complications like pleural or pericardial effusion, but it is not specific to HLH.

**Clinical Pearl:** Late onset HLH should be suspected in newborns showing unexplained hemorrhagic features (e.g., intracranial hemorrhage, hypotonia) after the first week of life. Jaundice, while common in newborns, should not be considered a typical feature of late onset HLH. Prompt diagnosis and treatment are essential to prevent severe complications and improve the prognosis.