Manual Examination
Manual Examination - Related Videos
01:43
Rabbit Handling and Manual Restraint
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Rabbits possess powerful hindlimb musculature and are susceptible to spinal injury if they struggle or kick while inadequately supported. Because rabbits vary in temperament and may struggle during restraint, handlers should...
07:44
Ophthalmoscopic Examination
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2023
Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA The simplest ophthalmoscopes consist of an aperture to look through, a diopter indicator, and a disc for selecting lenses. The ophthalmoscope is primarily used to examine the fundus, or the inner wall of the posterior eye, which consists of the choroid, retina, fovea, macula, optic disc, and retinal vessels (Figure 1). The spherical eyeball...
20:06
The Comprehensive Infant Examination
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2023
Source: Heather Collette and Jaideep Talwalkar; Yale School of Medicine The newborn exam is important in establishing a baby's baseline health status as they enter the world. Newborn providers have the unique opportunity to evaluate a patient for the very first time. They are also tasked with identifying congenital anomalies that require early intervention to promote a long and healthy life for the child. Many newborn anomalies, such as heart defects, are noted on prenatal ultrasound. However,...
35:03
Mental Status Examination
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2023
Source: Carmen Black, Matthew Goldenberg, and Jaideep Talwalkar; Yale School of Medicine The mental status exam is a clinical evaluation of emotional, perceptual, and cognitive functioning that spans both the fields of psychiatry and neurology. Developing skill in the psychiatric portions of the examination are important to describe salient aspects of the patient's mental state that may be observed during routine history and/or physical exam. Proficiency in the cognitive portions of this...
16:00
Behavioral Assessment of Manual Dexterity in Non-Human Primates
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Cited by 45 •
2011
As manual dexterity is a prerogative mainly of primates, behavioral tasks have been developed in macaque monkeys. Four reach and grasp prehension tasks, measuring hand manipulation ability and force, allow to establish functional recovery after a lesion of the central nervous system and to test the effect of a treatment.
FAQs
Its value comes from combining several observations rather than relying on a single feature. A trained observer examines characteristics such as shape, color, size, texture, movement, or condition, then measures and compares them with expected features. Careful recording preserves the observed evidence and supports identification, anatomical study, or a decision about further analysis.
Useful characteristics depend on the specimen or organism, but the approach specifically considers shape, color, size, texture, movement, and condition. These features can be assessed individually and then considered together during comparison with expected characteristics. The resulting pattern may support preliminary identification or help reveal whether a specimen requires closer investigation.
Interpretation can vary because Manual Examination depends on the observer’s training and on environmental conditions during observation. Experience affects how visible characteristics are recognized and compared, while surrounding conditions can influence what is noticed. Careful measurement, systematic comparison, and detailed recording help make the assessment more consistent without replacing specialized follow-up when needed.
Manual Examination provides an initial assessment rather than necessarily serving as the final analysis. Visible features can guide specimen identification, anatomical study, preliminary diagnosis, or quality assessment, while also helping determine whether a more specialized method should follow. This makes the approach useful for directing attention and selecting appropriate next steps.
A basic workflow begins with systematic observation of the specimen, structure, or organism. The observer then assesses relevant visible characteristics, makes measurements where appropriate, compares the findings with expected features, and records the results carefully. This sequence creates a practical basis for identification, assessment, or deciding whether additional analysis is warranted.
Biologists can use it for specimen identification, anatomical study, preliminary diagnosis, and quality assessment. Its low cost and practical nature also support teaching, fieldwork, and routine laboratory assessment. In these settings, direct observations provide immediate information and can help determine which specimens or findings should receive more specialized attention.