edgepedia

Diagnosis and clinical assessment

873 articles

Dynamic posturography

Dynamic posturography is a clinical assessment that measures postural sway and balance reactions while visual and support-surface cues are perturbed, quantifying the sensory and motor contributions to balance.

Dynamometry

Dynamometry is the quantitative measurement of the force or torque a muscle produces, using handheld or fixed devices to assess neuromuscular function and track rehabilitation progress.

DYS-NOC trial

DYS-NOC (NCT02801838), also called ADOREPS_2, was a French single-center interventional diagnostic trial validating the IC-RDOS observational dyspnea scale in non-communicating ventilated ICU patients against EMG and EEG markers, with ventilator optimization and up to 10 mg morphine titration.

Dysphagia screening

Dysphagia screening is a rapid bedside pass/fail procedure, standard in acute stroke care, that identifies patients at risk of swallowing difficulty before any oral intake.

Ear-EEG

Ear-EEG is a wearable EEG method that records brain activity from electrodes placed in or around the ear canal, enabling unobtrusive long-term monitoring of sleep, auditory responses, and brain state.

Early Diagnosis

Early diagnosis: identifying a disease at an early stage, typically in symptomatic patients; distinct from screening of asymptomatic populations. Covers WHO's three-step pathway, lead-time, length, and overdiagnosis biases, and the 35-62% diagnostic gap.

Early warning score

An early warning score (EWS) is a bedside scoring method that turns routinely measured vital signs into one aggregate number used to trigger escalation of clinical care in acute illness.

Eating Disorder Examination

The Eating Disorder Examination (EDE) is a semi-structured interview developed by Zafra Cooper and Christopher Fairburn, first published in 1987 and considered the gold standard eating disorder assessment.

Eating Disorder Examination questionnaire

The Eating Disorder Examination questionnaire (EDE-Q) is a 28-item self-report measure of eating disorder psychopathology, adapted from the EDE interview and introduced by Fairburn and Beglin in 1994.

Ecarin clotting time

The ecarin clotting time (ECT) is a coagulation assay using ecarin, venom of the saw-scaled viper, to measure direct thrombin inhibitors such as dabigatran and hirudin.

Eczema Area and Severity Index

The Eczema Area and Severity Index (EASI) is a clinical scoring tool for atopic dermatitis, grading lesion extent and severity across body regions on a 0 to 72 scale.

Edinburgh Postnatal Depression Scale

The Edinburgh Postnatal Depression Scale (EPDS) is a 10-item self-report questionnaire screening for depression during pregnancy and postnatally, the most widely used such screening tool.

EEG monitoring

EEG monitoring is the continuous or prolonged recording of the brain's electrical activity through scalp electrodes, used to detect seizures, including nonconvulsive ones, in intensive care.

Electrical cardiometry

Electrical cardiometry (EC) is a noninvasive hemodynamic monitoring method that estimates stroke volume and cardiac output continuously from changes in thoracic electrical impedance during the cardiac cycle.

Electroanatomic mapping

Electroanatomic mapping is a cardiac electrophysiology technique that builds navigable 3D maps of electrical activity in the heart chambers to guide diagnosis and catheter ablation of arrhythmias.

Electrocardiographic monitoring

Electrocardiographic monitoring is the continuous or intermittent recording of the heart's electrical activity over hours to years, using Holter monitors, patches, telemetry, and implanted devices.

Electrochemiluminescence immunoassay

Electrochemiluminescence immunoassay (ECLIA) is a laboratory binding assay in which an electrode triggers a ruthenium label to emit light, quantifying over 100 biomarkers in serum and blood.

Electrocochleography

Electrocochleography (ECochG) is an electrophysiological test recording electrical potentials from the cochlea and auditory nerve in response to sound, used mainly to diagnose Meniere disease.

Electrogastrography

Electrogastrography (EGG) is a noninvasive method recording the stomach's electrical activity through skin electrodes on the abdomen, used to assess gastric rhythm disorders, though it has not become a routine clinical diagnostic test.

Electroglottography

Electroglottography (EGG) is a noninvasive, low-cost technique that measures changes in the contact area of the vibrating vocal folds using electrodes on the neck, used in voice clinics, phonetics, and singing pedagogy.

Electromagnetic articulography

Electromagnetic articulography (EMA) is a biomedical technique that tracks tongue, lip, and jaw movements during speech with sensor coils, supporting phonetic research and clinical assessment.

Electroneurography

Electroneurography (ENoG), also called electroneuronography, is a neurophysiological test that electrically stimulates a peripheral nerve and records the evoked muscle response to quantify nerve function.

Electroneuromyography

Electroneuromyography (ENMG) is a clinical neurophysiology method that combines nerve conduction studies and needle EMG in one session to diagnose disorders of the peripheral nerves and muscles.

Electronystagmography

Electronystagmography (ENG, electrooculography) is an electrode-based test recording eye movements via the corneo-retinal potential to evaluate vestibular and oculomotor nerves in dizziness; largely replaced by videonystagmography but still used when eyes-closed recording is needed.

Electrooculography

Electrooculography (EOG) is a non-invasive recording technique that tracks eye movements and tests retinal pigment epithelium function by measuring the eye's corneoretinal standing potential with skin electrodes.

Electrophysiological mapping

Electrophysiological mapping is a clinical technique recording electrical activity from many points on cardiac or cortical tissue, localizing abnormal conduction paths and seizure foci for treatment planning.

Electroretinography

Electroretinography (ERG) is a non-invasive diagnostic test that records the retina's summed electrical response to light, with waveform components localizing dysfunction from photoreceptors to ganglion cells.

Elevated alkaline phosphatase

Elevated alkaline phosphatase (raised ALP, hyperphosphatasemia): serum elevation of a multi-tissue ectoenzyme, usually from bone (osteoblastic disease) or liver (cholestasis), also placenta and intestine; evaluated by GGT and isoenzyme fractionation.

Elimination diet

An elimination diet is a diagnostic and therapeutic method that removes suspected food allergens and reintroduces them to identify triggers of food allergies and intolerances.

Endocrine Diagnostic Techniques

Endocrine diagnostic techniques: biochemical assays, dynamic stimulation and suppression tests, imaging, and venous sampling used to diagnose hormone disorders such as PPGL, Cushing syndrome, and adrenal insufficiency.