![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif) |
¿Preguntas sobre el cáncer?
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif)
|
1-800-422-6237
(1-800-4-CANCER)
|
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif)
|
Llame de lunes a viernes de 9:00 a.m. a 4:30 p.m., hora local en Estados Unidos y sus territorios. |
|
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif) |
|
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif)
| Grupo de registros tomados durante el sueño que muestra los cambios de la onda cerebral, los movimientos oculares, la frecuencia respiratoria, la presión arterial, la frecuencia cardíaca y la actividad eléctrica del corazón y otros músculos. Un polisomnograma se puede usar para ayudar a diagnosticar los trastornos del sueño. |
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/gray_spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif)
|
![](https://webarchive.library.unt.edu/eot2008/20081011073241im_/http://www.nci.nih.gov/images/spacer.gif) |