Section 2: Introduction, Features, And Specifications; Introduction; Measuring Point - Dräger JM-103 Instructions Manual

Introduction

To prevent kernicterus in newborn infants, it is very important to detect
jaundice in its early stages. The Jaundice Meter is a non-invasive
transcutaneous bilirubinometer. This hand-held device allows a quick,
non-invasive estimate of bilirubin concentration, to be used as an aid for
the management of jaundice in newborn infants. The measurements are
taken automatically when placing the instrument's measuring probe
against the measuring site of the infant and pressing it gently; the
measured value is then displayed.

Measuring Point

Measurements must be taken only on the infant's sternum (at hospital
sites or physicians' offices) or forehead (at hospital sites only) where a
sufficient amount of blood is circulated. A possibility exists that the
bilirubin in the subcutaneous tissue may measure low for areas with
minimal blood flow or areas in which the subcutaneous tissue is subject
to keratinization.
Although correlation with serum bilirubin was observed for both
sternum and forehead measurements, the clinical studies performed with
the Jaundice Meter and referenced in Appendices A and B show
consistently better results with measurements taken at the sternum
versus the forehead. There is a possibility that this difference may be
more pronounced for infants that have been exposed to sunlight, such as
infants seen at doctors' offices. Only sternum measurements were
evaluated during the studies conducted at doctors' offices; correlation of
forehead measurements with serum bilirubin has not been evaluated,
and the device is not intended for forehead measurements at doctors'
offices.
NOTE:
Use the sternum location when taking measurements at doctors' offices.
Jaundice Meter Instructions for Use (MU01380)
DRAFT 20 June 2005
Introduction, Features,
and Specifications
Section 2
Page 2 - 1