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Decreased muscle tone; Floppy infant
Take extra care when lifting and carrying a person with hypotonia to avoid causing an injury.
The physical examination will probably include a detailed examination of the nervous system and muscle function.
A neurologist (specialist in brain and nerves) will usually help evaluate the problem. Geneticists may help diagnose certain disorders. If there are also other medical problems, a number of different specialists will help care for the child.
Which diagnostic tests are done depends on the suspected cause of the hypotonia. Most of the conditions associated with hypotonia also cause other symptoms that can help in the diagnosis.
Many of these disorders require ongoing care and support.
Fenichel GM. The hypotonic (floppy) infant). In: Bradley WG, Daroff RB, Fenichel G, Jankovic J, eds. Neurology in Clinical Practice. 5th ed. Philadelphia, Pa: Butterworth-Heinemann Elsevier; 2008:chap 29.