Numerical knowledge
Clinical parameters
Browse physiological and laboratory parameters together with specimen, method, unit, population context and curated reference bands.
Ranges are source-, method-, specimen-, age-, sex- and population-specific. They are educational reference data, not a substitute for the reporting laboratory or clinical judgement.
Range of Motion, Articular
AMW:PARAM:160027The distance and direction to which a bone joint can be extended. Range of motion is a function of the condition of the joints, muscles, and connective tissues…
Reaction Time
AMW:PARAM:160028The time from the onset of a stimulus until a response is observed.
Residual Volume
AMW:PARAM:105017The volume of air remaining in the LUNGS at the end of a maximal expiration. Common abbreviation is RV.
Respiratory Rate
AMW:PARAM:135008The number of times an organism breathes with the lungs (RESPIRATION) per unit time, usually per minute.
Reticulocyte Count
AMW:PARAM:115006The number of RETICULOCYTES per unit volume of BLOOD. The values are expressed as a percentage of the ERYTHROCYTE COUNT or in the form of an index (corrected r…
Sagittal Abdominal Diameter
AMW:PARAM:200001The height of the ABDOMEN as measured in the SUPINE POSITION.
Secretory Rate
AMW:PARAM:125013The amount of a substance secreted by cells or by a specific organ or organism over a given period of time; usually applies to those substances which are forme…
Sensitivity and Specificity
AMW:PARAM:185003Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correc…
Serum Bicarbonate Concentration
AMW:PARAM:185005Serum Chloride Concentration
AMW:PARAM:125027Serum Cystatin C Concentration
AMW:PARAM:125031Serum Magnesium Concentration
AMW:PARAM:125028Serum Osmolality
AMW:PARAM:125038Serum Phosphate Concentration
AMW:PARAM:125029Serum Potassium Concentration
AMW:PARAM:125026Serum Sodium Concentration
AMW:PARAM:125025Serum Uric Acid Concentration
AMW:PARAM:125030Sex Ratio
AMW:PARAM:210005The number of males per 100 females.
Skin Temperature
AMW:PARAM:200002The TEMPERATURE at the outer surface of the body.
Skinfold Thickness
AMW:PARAM:160019The measurement of subcutaneous fat located directly beneath the skin by grasping a fold of skin and subcutaneous fat between the thumb and forefinger and pull…
Sleep Duration
AMW:PARAM:160006Total number of hours of sleep in a day.
Sleep Latency
AMW:PARAM:160007The time it takes to reach REM SLEEP. It is typically measured by POLYSOMNOGRAPHY or EEG as a part of various sleep pattern tests (e.g., multiple sleep latency…
Sperm Count
AMW:PARAM:115012A count of SPERM in the ejaculum, expressed as number per milliliter.
Stroke Volume
AMW:PARAM:105012The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-…
Surface Tension
AMW:PARAM:190012The force acting on the surface of a liquid, tending to minimize the area of the surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th e…
Taste Threshold
AMW:PARAM:160005The minimum concentration at which taste sensitivity to a particular substance or food can be perceived.
Temperature
AMW:PARAM:190009The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic…
Thermal Conductivity
AMW:PARAM:190011The heat flow across a surface per unit area per unit time, divided by the negative of the rate of change of temperature with distance in a direction perpendic…
Tidal Volume
AMW:PARAM:135016The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are TV or V with subscript T.