10/10/2023 0 Comments Tsb meaning measurement![]() ![]() #Tsb meaning measurement skinFor example, TcB tends to underestimate TSB in light and medium skin colours and overestimates in dark skin colour ( Samiee‐Zafarghandy 2014). However, the accuracy of TcB results may be affected by gestational age, body weight and skin colour ( Knüpfer 2001 Karen 2009). Using this point‐of‐care device saves time compared to measuring serum bilirubin and may reduce costs associated with measuring serum bilirubin in newborns ( Maisels 1997). ![]() Transcutaneous bilirubin measurement provides an immediate (less than a minute) result of bilirubin levels ( Dai 1997). ![]() The measurement is usually taken by gently pressing the meter against the sternum or forehead. The technology was first introduced in 1980 ( Yamanouchi 1980). Transcutaneous bilirubinometry is based on optical spectroscopy, which relates the amount of light absorption by bilirubin to the concentration of bilirubin in the skin. Transcutaneous bilirubinometry works by directing light into the skin and measuring the intensity of the wavelength of light that is returned ( Boo 2007). Transcutaneous bilirubin (TcB) measurement is a non‐invasive method for measuring serum bilirubin level ( Dai 1997). Current treatments for hyperbilirubinaemia include phototherapy and exchange transfusion, which is usually used for severe cases of hyperbilirubinaemia ( Woodgate 2015). This is compared to the nomogram for the age of the baby and used to determine the line of management ( Higgins 2012). Following guidelines issued by the American Academy of Pediatrics for the management of jaundice in the neonate ( AAP 2004), the age‐long critical cut‐off value of total serum bilirubin (TsB) of 20 mg/dL (342 µmol/L) at which therapy was required is being replaced by a plot of TsB against time (hours) for each baby. However, studies from developing countries suggest that the incidence may be much higher ( Nair 20). Studies from developed countries estimate the incidence of kernicterus to range from about 0.4 to 2 per 100,000 ( Srgo 2006 Mannig 2007 Burke 2009). The chronic manifestations include athetoid cerebral palsy, motor delay, gaze palsy, dental dysplasia, mental retardation and sensorineural hearing loss ( AAP 2004). The acute phase signs of kernicterus are poor feeding, lethargy, high‐pitched cry, hypertonia or hypotonia, opisthotonos and seizures ( Johnson 2002). However, in rare cases babies can have very high levels of bilirubin that can lead to bilirubin encephalopathy and kernicterus ( Ebbesen 2005 Srgo 2006). Most cases of newborn jaundice are mild and resolve spontaneously ( Srgo 2006). Hyperbilirubinaemia is very common in both term and preterm newborn infants (occurring in about 60% of newborns) and results from a predisposition to the production of bilirubin and their limited ability to excrete it ( Lauer 2011). In newborns, hyperbilirubinaemia becomes clinically apparent as jaundice, a yellow colouration of the skin and sclera ( Woodgate 2015). Hyperbilirubinaemia is a term used to describe excess of bilirubin in the blood. MHRA 'TSB', All Acronyms, 8 August 2023, Bluebook All Acronyms, TSB (Aug. ![]() TSB, All Acronyms, viewed August 8, 2023, MLA All Acronyms. Retrieved August 8, 2023, from Chicago All Acronyms. Facebook Twitter Linkedin Quote Copy APA All Acronyms. ![]()
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