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.
Blood Urea Nitrogen
AMW:PARAM:125001Blood urea nitrogen is a renal and metabolic laboratory parameter used in severity criteria and dehydration or renal assessment.
CD4 Lymphocyte Count
AMW:PARAM:115009The number of CD4-POSITIVE T-LYMPHOCYTES per unit volume of BLOOD. Determination requires the use of a fluorescence-activated flow cytometer.
Erythrocyte Count
AMW:PARAM:115005The number of RED BLOOD CELLS per unit volume in a sample of venous BLOOD.
Estimated Glomerular Filtration Rate
AMW:PARAM:125032Lymphocyte Count
AMW:PARAM:115008The number of LYMPHOCYTES per unit volume of BLOOD.
Platelet Count
AMW:PARAM:115011The number of PLATELETS per unit volume in a sample of venous BLOOD.
Serum Aspartate Aminotransferase Activity
AMW:PARAM:125005Serum AST is a liver and tissue injury enzyme parameter used in clinical criteria such as Ranson criteria.
Serum Calcium Concentration
AMW:PARAM:125007Serum calcium is a biochemical laboratory parameter used in metabolic and severity assessment contexts.
Serum Creatinine Concentration
AMW:PARAM:125008Serum creatinine is a renal function laboratory parameter used in kidney injury and organ dysfunction scoring.
Fasting Plasma Glucose
AMW:PARAM:125003Fasting plasma glucose is a laboratory parameter used in diabetes mellitus diagnostic criteria.
International Normalized Ratio
AMW:PARAM:155002International normalized ratio is a coagulation parameter used in bleeding risk, liver disease and anticoagulation assessment.
Leukocyte Count
AMW:PARAM:115007The number of WHITE BLOOD CELLS per unit volume in venous BLOOD. A differential leukocyte count measures the relative numbers of the different types of white c…
Serum Albumin Concentration
AMW:PARAM:125004Serum albumin is a laboratory parameter used in liver disease severity scoring and nutritional assessment.
Urine Albumin-to-Creatinine Ratio
AMW:PARAM:125035White Blood Cell Count
AMW:PARAM:115002Measured count of white blood cells in blood.
Serum Bilirubin Concentration
AMW:PARAM:125006Serum bilirubin is a laboratory parameter used in liver disease and organ dysfunction scoring.
Serum Lactate Dehydrogenase Activity
AMW:PARAM:125009Serum LDH is a tissue injury enzyme parameter used in clinical severity criteria.
Acceleration
AMW:PARAM:190008An increase in the rate of speed.
Adiposity
AMW:PARAM:160009The amount of fat or lipid deposit at a site or an organ in the body, an indicator of body fat status.
Airway Resistance
AMW:PARAM:135018Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure t…
Alpha Rhythm
AMW:PARAM:160024Brain waves characterized by a relatively high voltage or amplitude and a frequency of 8-13 Hz. They constitute the majority of waves recorded by EEG registeri…
Anaerobic Threshold
AMW:PARAM:125011The oxygen consumption level above which aerobic energy production is supplemented by anaerobic mechanisms during exercise, resulting in a sustained increase i…
Arterial Partial Pressure of Oxygen
AMW:PARAM:185002Arterial oxygen pressure, PaO2, is an arterial blood gas parameter used to assess oxygenation.
Arterial Pressure
AMW:PARAM:105008The blood pressure in the ARTERIES. It is commonly measured with a SPHYGMOMANOMETER on the upper arm which represents the arterial pressure in the BRACHIAL ART…
Atmospheric Pressure
AMW:PARAM:190014The pressure at any point in an atmosphere due solely to the weight of the atmospheric gases above the point concerned.
Atrial Pressure
AMW:PARAM:105006The pressure within the CARDIAC ATRIUM. It can be measured directly by using a pressure catheter (see HEART CATHETERIZATION). It can be also estimated using va…
Auditory Threshold
AMW:PARAM:160030The audibility limit of discriminating sound intensity and pitch.
Bacterial Load
AMW:PARAM:125016Measurable quantity of bacteria in an object, organism, or organism compartment.
Base Deficit
AMW:PARAM:185001Base deficit is an acid-base parameter used in severity assessment and shock or pancreatitis-related criteria.
Birth Weight
AMW:PARAM:160015The mass or quantity of heaviness of an individual at BIRTH. It is expressed by units of pounds or kilograms.