1. How is the patient assessed?
1a. Admission assessment
The first thing to happen is the assessment process and this may occur in a General Hospital Emergency Department or in a separate Psychiatric Unit Outpatient Department, depending on the public mental health system. The first person to talk to the new patient may be the reception staff in the Emergency Department. They need to ascertain the degree of emergency, that is, how quickly the patient should be seen. This is called triage. Psychiatric emergencies that require urgent attention include suicidal actions and acute psychotic symptoms with obvious behavioral disturbance. In these cases an Emergency Department doctor will see him/her as soon as possible.
Acute life threatening medical emergencies will, however, usually take priority and there can sometimes be a wait. The Emergency Department doctor will ask questions of the patient and the caregivers to ascertain the nature of the problem or symptoms.
It may then be decided that the person does not need to see a psychiatrist. However, if admission to the hospital is recommended, then a psychiatric registrar will then see him/her. Having already seen a doctor prior to seeing the psychiatric registrar, the patient may find this second review repetitive and frustrating. It is, however, the registrars (and their psychiatric consultant who, on the basis of his/her detailed and specialist knowledge of mental illness, make the final decision on the benefits of hospitalization. Decisions about patient admissions are thorough and the emergency doctor (who may have limited experience with mental illness) may confer with other professionals.
The psychiatric registrar will also want to talk to friends or a family member and the patient's GP if they are available. This happens so that all the issues are carefully assessed and the appropriate options decided upon and discussed with the patient and the caregivers (the patient may be too ill to participate fully in this discussion but every attempt will be made to involve him/her). This process takes time and patience is required.
1b. Physical examination and investigations
Physical examination and certain investigations are always required in order to exclude a physical cause for the symptoms. This is a very important part of the initial assessment for anyone presenting at a hospital or clinic with acute psychiatric symptoms. It is common practice for all new admissions to a psychiatric ward to undergo a CT Head scan and an EEG (Electroencephalogram) together with certain blood tests as part of the physical screening process.
It is important to establish that mental symptoms do not result from abnormalities of the thyroid gland, therefore, thyroid function tests are usually undertaken. In other parts of the world, where mental symptoms may commonly result from certain infections or parasitic conditions such as malaria, appropriate tests will be carried out as part of this assessment phase and these are normally done in the first few days following admission. It is vital that such physical causes be detected or excluded and these can include conditions such as brain tumors, strokes, diabetes and various types of epilepsy.
Other blood tests may also be taken at the time of the initial assessment or the next day when you are on the ward. These tests are done for a number of reasons including reviewing liver and kidney function. This can be important if the treatment involves taking medication that may affect either of these organs or if the patient has a pre-existing liver or kidney problem that requires an adjusted dosage of medication. Anemia and vitamin deficiencies are among other conditions that can affect mental state.