In circumstances where a person is showing possible signs of aphasia, the physician will refer him or her to a speech-language pathologist (SLP) for a comprehensive speech and language evaluation. SLPs will examine the individuals ability to express him or herself through speech, understand language in written and spoken forms, write independently, and perform socially.The American Speech, Language, Hearing Association (ASHA) states a comprehensive assessment should be conducted in order to analyze the patients communication functioning on multiple levels; as well as the effect of possible communication deficits on activities of daily living. Typical components of an aphasia assessment include: case history, self report, oral-motor examination, language skills, identification of environmental and personal factors, and the assessment results. A comprehensive aphasia assessment includes both formal and informal measures.Formal assessments include:

Boston Diagnostic Aphasia Examination (BDAE): diagnoses the presence and type of aphasia, focusing on location of lesion and the underlying linguistic processes. Western Aphasia Battery – Revised (WAB): determines the presence, severity, and type of aphasia; and can also determine baseline abilities of patient. Communication Activities of Daily Living - Second Edition (CADL-2): measures functional communication abilities; focuses on reading, writing, social interactions, and varying levels of communication. Revised Token Test (RTT): assess receptive language and auditory comprehension; focuses on patients ability to follow directions.Informal assessments, which aid in the diagnosis of patients with suspected aphasia, include:
Conversational speech and language sample
Family interview
Case history or medical chart review
Behavioral observationsDiagnostic information should be scored and analyzed appropriately.
These principles include: incorporating multiple modalities into treatment to create stronger neural connections, using stimuli that evoke positive emotion, linking concepts with simultaneous and related presentations, and finding the appropriate intensity and duration of treatment for each individual patient. Auditory comprehension treatment
Auditory comprehension is a primary focus in treatment for Wernickes aphasia, as it is the main deficit related to this diagnosis. Therapy activities may include:

Single-word comprehension: A common treatment method used to support single-word comprehension skills is known as a pointing drill. Through this method, clinicians lay out a variety of images in front of a patient. The patient is asked to point to the image that corresponds to the word provided by the clinician. Understanding spoken sentences: "Treatment to improve comprehension of spoken sentences typically consists of drills in which patients answer questions, follow directions or verify the meaning of sentences". Understanding conversation: An effective treatment method to support comprehension of discourse includes providing a patient with a conversational sample and asking him or her questions about that sample. Individuals with less severe deficits in auditory comprehension may also be able to retell aspects of the conversation. Word retrieval
Anomia is consistently seen in aphasia, so many treatment techniques aim to help patients with word finding problems. One example of a semantic approach is referred to as semantic feature analyses. The process includes naming the target object shown in the picture and producing words that are semantically related to the target.