Usher test

In neonatology, the Usher test or Usher method is a clinical technique commonly used for the indirect calculation of the gestational age of a newborn. The test assigns a value to a series of examination criteria, the total sum of which is then extrapolated to infer the gestational age of the newborn. The criteria are five, purely physical, unlike Ballard's test that adds neurological assessments. Gestational age

The Usher method yields generalized results, less specific than other methods, such as the Capurro method, placing the newborn in three ranges:

The results may be altered with restrictions on intrauterine growth. Criteria

The Usher test evaluates five criteria in the newborn:

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