Related Experiment Video
Updated: Jan 15, 2026

Transcutaneous Microcirculatory Imaging in Preterm Neonates
Published on: December 31, 2015
Comparison of Transcutaneous Bilirubin Measurements at the Forehead and Sternum in Neonates
Introduction:
Early detection of hyperbilirubinemia is critical in newborns. Transcutaneous bilirubin (TcB) devices offer a non-invasive alternative to total serum bilirubin (TSB) measurements for screening newborn jaundice. This study aimed to compare TcB measurements taken at the forehead and sternum in neonates and to determine which site more accurately reflects TSB.
Method:
We conducted a prospective observational study of neonates at risk for hyperbilirubinemia.
Results:
TcB measurements at the sternum were significantly higher than those from the forehead (mean difference: 1.05 mg/dL, p < .001), with stronger correlation to TSB (r = 0.712 vs. r = 0.686 for forehead). Sternal TcB measurements demonstrated smaller bias and tighter limits of agreement with TSB. Although both sites had high sensitivity (>94%), specificity was low for both sites (19%-31%).
Conclusion:
The sternum is the optimal anatomical site for TcB screening of neonatal jaundice in routine practice. However, confirmatory TSB testing remains essential when TcB values approach clinical intervention thresholds.
Related Concept Videos
Temperature Measurement Sites
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Assessing Body Temperature - Temporal Artery
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
Assessment of blood pressure in brachial artery(two-step method)
Assessing Body Temperature - Rectal
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Sites for measruring blood pressure
The Brachial Artery: Primary Site for Blood Pressure Measurement
Assessment of blood pressure in brachial artery(one-step method)
Prepare for the Procedure:

