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Tests

Ammonia Levels

An ammonia levels test measures the amount of ammonia in a sample of your blood. Ammonia is also called NH3. It is a normal waste product in your body. Healthy bacteria in your intestines make ammonia when you digest protein in the foods you eat.

For everyone & professionals

Article

An analytical method based on magnetic dispersive solid phase extraction combined with high performance liquid chromatography-tandem mass spectrometry for monitoring of apixaban plasma concentration in patients undergoing hip fracture surgery.

Research record from J Chromatogr B Analyt Technol Biomed Life Sci, 2026-03-25. PMID 41932170.

Article

An at-home blood collection device for remote immune monitoring by high-parameter flow cytometry.

Research record from JCI Insight, 2026-04-08. PMID 41948933.

Article

An Ultra-High performance liquid chromatography-tandem mass spectrometry method for simultaneous determination of etomidate, analogues, and metabolites in human nail: Unveiling a unique accumulation profile.

Research record from Forensic Toxicol, 2026-06-19. PMID 42319706.

Article

Analysis and Characterization of Kisspeptin and Its Analogues in Serum and Urine Samples by Liquid Chromatography-High-Resolution Mass Spectrometry for Doping Control Purposes.

Research record from Drug Test Anal, 2026-04-29. PMID 42057309.

Article

Analysis of Human Placental Tissues Using Gas Chromatography High Resolution Accurate Mass Spectrometry to Characterize Exposure to a Range of Semivolatile Organic Compounds.

Research record from Expo Health, 2026-07-24. PMID 42502272.

Article

Analytical and Clinical Validity of a High-Throughput, Fully Automated Immunoassay for Plasma Neurofilament Light Chain.

Research record from J Appl Lab Med, 2026-09-01. PMID 42172309.

Article

Analytical and Workflow Performance of a High-Throughput Chemiluminescent Immunoassay System in a Clinical Laboratory.

Research record from J Clin Lab Anal, 2026-05-27. PMID 42204881.

Article

Analytical performance of a multi-target open real-time PCR assay for simultaneous detection of tuberculosis, non-tuberculous mycobacteria, and drug resistance in a high-burden setting.

Research record from Microbiol Spectr, 2026-08-15. PMID 42603138.

Article

Analytical validation and clinical evaluation of a high-sensitivity cardiac troponin I immunoassay for use in cats.

Research record from PLoS One, 2026-04-08. PMID 41950232.

Article

Analytical validation of capillary blood Krebs von den Lungen-6 measurement using a high- sensitivity chemiluminescent immunoassay in pediatric patients.

Research record from Front Med (Lausanne), 2026-09-03. PMID 42755646.

Indicators

Arsenic

A naturally occurring allotropic pnictogen and metalloid trace element with atomic symbol As, atomic number 33, and atomic weight 74.92 that is found in water, air, food, and soil, and has a role as a micronutrient. Arsenic, which is highly toxic with acute or chronic exposure to moderate or high levels through an unknown mechanism of action, is used in many industrial processes, as well as in pharmaceuticals, feed additives, and pesticides. It is characterized as a white, yellow, gray metallic, or black solid that is odorless. Exposure occurs by inhalation, ingestion, or contact.

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