The phrase "a certain diagnosis" is correct and usable in written English.
It can be used when referring to a specific diagnosis that is not explicitly named or when the exact nature of the diagnosis is not important to the context.
Example: "After several tests, the doctor arrived at a certain diagnosis that would require further treatment."
Alternatives: "a specific diagnosis" or "a particular diagnosis".
Every woman's body reacts differently to changes in oestrogen levels, making a certain diagnosis of the menopause difficult.
These groups meet a number of times so that they can say that their agreement about a certain diagnosis is reliable.
It is created by American psychiatrists who meet in groups to consider whether or not a certain diagnosis should be included in the DSM.
That is, a doctor may give a certain diagnosis because the patient image and presentation are similar to paradigmatic cases the doctor has encountered before.
They are made from two genes known as CO1 and CO2.The researchers collected and analysed mitochondrial DNA from 601 people, of whom 506 had been diagnosed as probably having Alzheimer's disease (a certain diagnosis is impossible until the victim dies).
Different neurosonological examinations using transcranial color coded duplex sonography (TCCS) were combined to obtain a certain diagnosis.
A rheumatologist (KAD) and two GPs (HS & GR) were asked to write down all the words specialists or GPs might use to describe a firm diagnosis of RA and a less certain diagnosis of an inflammatory type arthritis.
A special form of PET scanning offers a more certain diagnosis for some, but at a steep out-of-pocket cost.
Although symptoms are usually quite characteristic — rapid development of severe pain, redness and swelling, most often in the first joint of the big toe — a more certain diagnosis requires detection of urate crystals in an inflamed joint during an attack or between attacks.
This case demonstrates that 7.0 T MRI might contribute to a more certain diagnosis.
Scientific research is very active in the challenge of designing automated approaches to achieve an early and certain diagnosis.
