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Normal values, therapeutic drug levels, and useful formulae 

Normal values, therapeutic drug levels, and useful formulae
Normal values, therapeutic drug levels, and useful formulae

Grenville Fox

, Nicholas Hoque

, and Timothy Watts

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date: 23 June 2021

This chapter includes data on normal neonatal blood, urine, and cerebrospinal fluid (CSF) biochemistry values; normal neonatal haematology values; and therapeutic drug levels. Values given use SI units and notes are included to explain any changes expected with gestational and post-natal age, along with notes and references to greater detail in other relevant chapters. The importance of minor variance from locally used normal values is noted, along with local recommendations for therapeutic drug levels. Useful respiratory and biochemical physiological formulae are given, along with some used for routine practical procedures including tube length for endotracheal intubation and umbilical catheter length.

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