Laboratory

Records the specific time of day at which a biological specimen was collected in LIS and EHR systems, often combined with specimen date to form a full timestamp. Critical for data engineers processing timed lab protocols, validating HL7 OBR segment data, and ensuring temporal accuracy in clinical and claims data integration workflows.

The precise date and time a biological sample was collected, received, or processed, captured in LIS and EHR systems. Used by data engineers to calculate turnaround times, sequence lab events, and join specimen records across clinical and claims datasets.

The aggregate count or summed quantity of biological samples collected or processed within a defined period, used in LIS and laboratory analytics platforms. Supports volume trending, capacity planning, and quality metrics reporting in healthcare data warehouses.

A standardized classification code identifying the form of a biological sample (e.g., serum, plasma, whole blood, urine, biopsy tissue) within LIS, EHR, and clinical data repositories. Drives test routing logic, reference range selection, and downstream lab result normalization in data pipelines.

A standardized code identifying the type of biological specimen collected for laboratory testing, such as whole blood, serum, plasma, urine, cerebrospinal fluid, tissue biopsy, throat swab, or stool sample. Specimen type codes are used in laboratory information systems to route specimens to the correct processing area, apply appropriate reference ranges, and validate that the correct specimen was collected for the ordered test.

The quantitative or qualitative measurement recorded for a biological sample in LIS and EHR systems, such as a numeric lab result or a categorical finding. Used by data engineers to populate lab result tables, apply reference range logic, and flag abnormal values in clinical analytics.

The quantity of biological specimen collected or submitted for laboratory testing, expressed in mL for liquid specimens or grams for tissue specimens, used to assess adequacy for ordered tests and to calculate concentration-based results for 24-hour urine collections where total volume is required to calculate protein excretion, creatinine clearance, and other timed collection analytes. Insufficient volume is a primary cause of specimen rejection.

The result of a stool culture examination for bacterial pathogens causing gastroenteritis, including Salmonella, Shigella, Campylobacter, and E. coli O157:H7. Stool culture results are used in infectious disease management, public health reporting of notifiable foodborne pathogens, and outbreak investigation analytics. Many healthcare organizations now use molecular multiplex panels for stool pathogen detection.

A code identifying a predefined group of laboratory tests ordered together as a panel, such as Basic Metabolic Panel, Comprehensive Metabolic Panel, Complete Blood Count, Lipid Panel, or Hepatic Function Panel. Test panel codes are used in laboratory information systems for bundled ordering, in billing for panel CPT codes, and in data warehouses to group individual test results by their parent panel for clinical and quality analytics.

The recorded outcome of a diagnostic examination, including lab values, imaging findings, or pathology interpretations, stored in EHR, LIS, and claims systems using standards such as HL7 ORU messages or LOINC codes. Essential for clinical decision support, quality measure calculation, and longitudinal patient data analysis.

A laboratory measurement of thyroid stimulating hormone concentration in blood, expressed in mIU/L, used as the primary screening test for thyroid dysfunction. TSH rises in hypothyroidism and falls in hyperthyroidism, providing a sensitive inverse indicator of thyroid hormone levels. TSH monitoring is required for patients on levothyroxine therapy and is a preventive care quality measure for patients on lithium and amiodarone therapy.

A laboratory measurement of total bilirubin concentration in blood serum, expressed in mg/dL, representing the sum of direct and indirect bilirubin fractions. Total bilirubin is included in Comprehensive Metabolic Panels and Hepatic Function Panels, is used in neonatal jaundice management where levels above phototherapy thresholds trigger treatment, and is a component of the MELD score calculated as the natural log of total bilirubin for liver transplant prioritization.

A laboratory measurement of total protein concentration in blood serum, expressed in g/dL, representing the combined concentration of albumin and globulins. Total protein is included in Comprehensive Metabolic Panels and Hepatic Function Panels, and is used with albumin to calculate globulin concentration and albumin-to-globulin ratio. Elevated total protein with low albumin indicates elevated globulins which may reflect multiple myeloma or autoimmune disease.

A laboratory measurement of blood triglyceride concentration expressed in mg/dL, included in standard lipid panel testing as a component of cardiovascular risk assessment. Triglyceride levels above 200 mg/dL are classified as high and above 500 mg/dL as very high with risk of pancreatitis. Triglycerides are used in calculated LDL-C formulas where direct measurement is preferred for highly elevated values that invalidate the Friedewald equation.

A laboratory measurement of cardiac troponin protein in blood, used as the primary biomarker for myocardial injury detection in acute myocardial infarction diagnosis. High-sensitivity troponin assays detect elevations within 1-3 hours of symptom onset, enabling rapid rule-in and rule-out protocols for acute coronary syndrome. Serial troponin measurements with rising or falling patterns are required for AMI diagnosis under current ACC/AHA guidelines.

A laboratory measurement of uric acid concentration in blood serum, expressed in mg/dL, used to diagnose and monitor gout, assess risk for uric acid nephrolithiasis, and monitor patients on urate-lowering therapy such as allopurinol and febuxostat. Hyperuricemia above 6.8 mg/dL is associated with gout risk, and serum uric acid monitoring is used to assess treatment response targeting levels below 6.0 mg/dL.

The composite result of a urinalysis test including macroscopic, chemical, and microscopic examination of urine. Chemical components include pH, protein, glucose, ketones, blood, leukocyte esterase, and nitrite. Microscopic components include white cells, red cells, bacteria, casts, and crystals. Urinalysis results are used in urinary tract infection diagnosis, renal disease assessment, diabetes monitoring, and HEDIS measures tracking diabetes-related complications.

A laboratory measurement of albumin concentration in a spot urine sample used to detect early diabetic nephropathy before overt proteinuria develops. Microalbuminuria is defined as urine albumin between 30-300 mg/g creatinine in a spot urine sample, and is a key component of the HEDIS Comprehensive Diabetes Care measure requiring annual microalbumin testing to detect early kidney disease in diabetic patients.

A laboratory measurement calculated from a spot urine sample comparing protein excretion to creatinine excretion, used as a surrogate for 24-hour urine protein measurement to quantify proteinuria and assess kidney disease severity. UPCR above 0.2 mg/mg indicates significant proteinuria and above 3.5 mg/mg indicates nephrotic-range proteinuria. UPCR monitoring is a HEDIS measure component for comprehensive diabetes care and nephropathy monitoring.

A laboratory measurement of 25-hydroxyvitamin D concentration in blood serum, expressed in ng/mL, reflecting total vitamin D stores from dietary intake and sun exposure. Vitamin D deficiency below 20 ng/mL and insufficiency between 20-30 ng/mL are associated with bone disease and impaired calcium absorption. Vitamin D testing is subject to payer coverage criteria requiring qualifying indications such as osteoporosis, malabsorption syndromes, and chronic kidney disease.