A Coma scale is a system to assess the severity of coma

Coma

In medicine, a coma is a state of unconsciousness, lasting more than 6 hours in which a person cannot be awakened, fails to respond normally to painful stimuli, light or sound, lacks a normal sleep-wake cycle and does not initiate voluntary actions. A person in a state of coma is described as...

. There are several such systems:

Glasgow Coma Scale

The Glasgow Coma Scale is neurological

Neurology

Neurology is a medical specialty dealing with disorders of the nervous system. Specifically, it deals with the diagnosis and treatment of all categories of disease involving the central, peripheral, and autonomic nervous systems, including their coverings, blood vessels, and all effector tissue,...

 scale

Scale (ratio)

The scale ratio of some sort of model which represents an original proportionally is the ratio of a linear dimension of the model to the same dimension of the original. Examples include a 3-dimensional scale model of a building or the scale drawings of the elevations or plans of a building. In such...

 which aims to give a reliable, objective way of recording the conscious state of a person, for initial as well as continuing assessment. A patient is assessed against the criteria of the scale, and the resulting points give a patient score between 3 (indicating deep unconsciousness) and either 14 (original scale) or 15 (the more widely used modified or revised scale).
GCS was initially used to assess level of consciousness after head injury

Head injury

Head injury refers to trauma of the head. This may or may not include injury to the brain. However, the terms traumatic brain injury and head injury are often used interchangeably in medical literature....

 and the scale is now used by 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...

, EMS

Emergency medical services

Emergency medical services are a type of emergency service dedicated to providing out-of-hospital acute medical care and/or transport to definitive care, to patients with illnesses and injuries which the patient, or the medical practitioner, believes constitutes a medical emergency...

 and doctors as being applicable to all acute medical

Acute (medicine)

In medicine, an acute disease is a disease with either or both of:# a rapid onset, as in acute infection# a short course ....

 and trauma

Trauma (medicine)

Trauma refers to "a body wound or shock produced by sudden physical injury, as from violence or accident." It can also be described as "a physical wound or injury, such as a fracture or blow." Major trauma can result in secondary complications such as circulatory shock, respiratory failure and death...

 patients. In hospital it is also used in chronic patient monitoring, in for instance, intensive care.

Pediatric Glasgow Coma Scale

The Paediatric Glasgow Coma Scale (also known as Paediatric Glasgow Coma Score or simply PGCS) is the equivalent of the Glasgow Coma Scale (GCS) used to assess the mental state of adult patients. As many of the assessments for an adult patient would not be appropriate for infants, the scale was modified slightly. As with the GCS, the PGCS comprises three tests: eye, verbal and motor responses. The three values separately as well as their sum are considered. The lowest possible PGCS (the sum) is 3 (deep coma or death) whilst the highest is 15 (fully awake and aware person).

Blantyre Coma Scale

The Blantyre Coma Scale is a modification of the Pediatric Glasgow Coma Scale, designed to assess malarial

Malaria

Malaria is a mosquito-borne infectious disease of humans and other animals caused by eukaryotic protists of the genus Plasmodium. The disease results from the multiplication of Plasmodium parasites within red blood cells, causing symptoms that typically include fever and headache, in severe cases...

 coma in children.

It was designed by doctors Terrie Taylor and Malcolm Molyneux in 1987, and named for the Malawian city of Blantyre

Blantyre, Malawi

Blantyre or Mandala is Malawi's centre of finance and commerce, the largest city with an estimated 732,518 inhabitants . It is sometimes referred to as the commercial capital of Malawi as opposed to the political capital, Lilongwe...

, site of the Blantyre Malaria Project.