A nanny, childminder or child care provider, is an individual who provides care for one or more children in a family as a service. Traditional nannies were servants in large households and reported directly to the lady of the house while modern nannies, like other domestic worker

Domestic worker

A domestic worker is a man, woman or child who works within the employer's household. Domestic workers perform a variety of household services for an individual or a family, from providing care for children and elderly dependents to cleaning and household maintenance, known as housekeeping...

s, may live in or out of the house depending on their circumstances and those of their employers. Professional nannies are usually certified in cardiopulmonary resuscitation

Cardiopulmonary resuscitation

Cardiopulmonary resuscitation is an emergency procedure which is performed in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person in cardiac arrest. It is indicated in those who are unresponsive...

, fluent in First Aid

First aid

First aid is the provision of initial care for an illness or injury. It is usually performed by non-expert, but trained personnel to a sick or injured person until definitive medical treatment can be accessed. Certain self-limiting illnesses or minor injuries may not require further medical care...

, and have a degree or extensive training in child development

Child development

Child development stages describe theoretical milestones of child development. Many stage models of development have been proposed, used as working concepts and in some cases asserted as nativist theories....

.